Version 449.30 by Xiaoling on 2023/04/26 18:00
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15 **Table of Contents:**
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19 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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22 {{toc/}}
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31
32
33 = 1.  Introduction =
34
35 == 1.1 ​ What is LSN50 LoRa Sensor Node ==
36
37
38 (((
39 (((
40 LSN50 is a Long Range LoRaWAN Sensor Node. It is designed for (% style="color:#4472c4" %)**outdoor data logging **(%%)and powered by (% style="color:#4472c4" %)**Li/SOCl2 battery**(%%) for long term use and secure data transmission. It is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.
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43 (((
44 It is based on SX1276/SX1278 allows the user to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
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47 (((
48 (% style="color:#4472c4" %)**LSN50**(%%) uses STM32l0x chip from ST, STML0x is the (% style="color:#4472c4" %)**ultra-low-power**(%%) STM32L072xxxx microcontrollers incorporate the connectivity power of the universal serial bus (USB 2.0 crystal-less) with the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, a memory protection unit (MPU), high-speed embedded memories (192 Kbytes of Flash program memory, 6 Kbytes of data EEPROM and 20 Kbytes of RAM) plus an extensive range of enhanced I/Os and peripherals.
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50
51 (((
52 LSN50 is an (% style="color:#4472c4" %)**open source product**(%%), it is based on the STM32Cube HAL drivers and lots of libraries can be found in ST site for rapid development.
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54 )))
55
56
57 [[image:1656294562709-486.png]]
58
59
60 == 1.2  Specifications ==
61
62
63 (% style="color:#037691" %)**Micro Controller:**
64
65
66 * MCU: STM32L072xxxx
67 * Flash: 128KB
68 * RAM: 20KB
69 * EEPROM: 6KB
70 * Clock Speed: 32Mhz
71
72 (% style="color:#037691" %)**Common DC Characteristics:**
73
74 * Supply Voltage: 2.1v ~~ 3.6v
75 * Operating Temperature: -40 ~~ 85°C
76 * I/O pins: Refer to [[STM32L072 datasheet>>https://www.st.com/resource/en/datasheet/stm32l072cz.pdf]]
77
78 (% style="color:#037691" %)**LoRa Spec:**
79
80 * Frequency Range,
81 ** Band 1 (HF): 862 ~~ 1020 Mhz
82 * or
83 ** Band 2 (LF): 410 ~~ 528 Mhz
84 * 168 dB maximum link budget.
85 * +20 dBm - 100 mW constant RF output vs.
86 * +14 dBm high efficiency PA.
87 * Programmable bit rate up to 300 kbps.
88 * High sensitivity: down to -148 dBm.
89 * Bullet-proof front end: IIP3 = -12.5 dBm.
90 * Excellent blocking immunity.
91 * Low RX current of 10.3 mA, 200 nA register retention.
92 * Fully integrated synthesizer with a resolution of 61 Hz .
93 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
94 * Built-in bit synchronizer for clock recovery.
95 * Preamble detection.
96 * 127 dB Dynamic Range RSSI.
97 * Automatic RF Sense and CAD with ultra-fast AFC.
98 * Packet engine up to 256 bytes with CRC.
99 * LoRaWAN 1.0.2 Specification
100
101 (% style="color:#037691" %)**Battery:**
102
103 * Li/SOCI2 un-chargeable battery
104 * Capacity: 4000mAh
105 * Self Discharge: <1% / Year @ 25°C
106 * Max continuously current: 130mA
107 * Max boost current: 2A, 1 second
108
109 (% style="color:#037691" %)**Power Consumption**
110
111 * STOP Mode: 2.7uA @ 3.3v
112 * LoRa Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm
113
114
115
116 == ​1.3  Features ==
117
118
119 * LoRaWAN 1.0.3 Class A, Class C
120 * STM32L072xxxx MCU
121 * SX1276/78 Wireless Chip
122 * Pre-load bootloader on USART1/USART2
123 * MDK-ARM Version 5.24a IDE
124 * I2C, LPUSART1, USB, SPI2
125 * 3x12bit ADC, 1x12bit DAC
126 * 20xDigital I/Os
127 * LoRa™ Modem
128 * Preamble detection
129 * Baud rate configurable
130 * CN470/EU433/KR920/US915/IN865
131 * EU868/AS923/AU915/MA869
132 * Open-source hardware / software
133 * Available Band:433/868/915/920 Mhz
134 * IP66 Waterproof Enclosure
135 * Ultra-Low Power consumption
136 * AT Commands to change parameters
137 * 4000mAh or 8500mAh Battery for long term use.
138
139
140
141 == 1.4 ​ Applications ==
142
143
144 * Smart Cities
145 * Smart Factory
146 * Smart Metering
147 * Smart Agriculture
148 * Smart Buildings & Home Automation
149 * Logistics and Supply Chain Management
150
151
152
153 == 1.5  Pin Definitions and Switch ==
154
155
156 (% class="wikigeneratedid" %)
157 [[image:1656295519542-152.png||height="413" width="728"]]
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160 (% class="wikigeneratedid" %)
161 [[image:1656295532863-613.png||height="371" width="721"]]
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164 (% border="1" cellspacing="0" style="width:520px" %)
165 |=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**No.**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**Signal**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**Direction**|=(% style="width: 180px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 180px;background-color:#D9E2F3;color:#0070C0" %)Remark
166 |(% style="background-color:#f2f2f2; width:44px" %)1|(% style="background-color:#f2f2f2; width:86px" %)VCC(2.9V)|(% style="background-color:#f2f2f2; width:84px" %)OUTPUT|(% style="background-color:#f2f2f2; width:322px" %)VCC|(% style="background-color:#f2f2f2; width:296px" %)Directly connect to main power for board
167 |(% style="background-color:#f2f2f2; width:44px" %)2|(% style="background-color:#f2f2f2; width:86px" %)PA0|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)Used as ADC in LSN50 image
168 |(% style="background-color:#f2f2f2; width:44px" %)3|(% style="background-color:#f2f2f2; width:86px" %)PA1|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
169 |(% style="background-color:#f2f2f2; width:44px" %)4|(% style="background-color:#f2f2f2; width:86px" %)PA2|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)Used as UART_TXD in LSN50 image
170 |(% style="background-color:#f2f2f2; width:44px" %)5|(% style="background-color:#f2f2f2; width:86px" %)PA3|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)Used as UART_RXD in LSN50 image
171 |(% style="background-color:#f2f2f2; width:44px" %)6|(% style="background-color:#f2f2f2; width:86px" %)PB6|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)
172 |(% style="background-color:#f2f2f2; width:44px" %)7|(% style="background-color:#f2f2f2; width:86px" %)PB7|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)
173 |(% style="background-color:#f2f2f2; width:44px" %)8|(% style="background-color:#f2f2f2; width:86px" %)PB3|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)
174 |(% style="background-color:#f2f2f2; width:44px" %)9|(% style="background-color:#f2f2f2; width:86px" %)PB4|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
175 |(% style="background-color:#f2f2f2; width:44px" %)10|(% style="background-color:#f2f2f2; width:86px" %)PA9|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)
176 |(% style="background-color:#f2f2f2; width:44px" %)11|(% style="background-color:#f2f2f2; width:86px" %)PA10|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip, 10k pull up to VCC|(% style="background-color:#f2f2f2; width:296px" %)
177 |(% style="background-color:#f2f2f2; width:44px" %)12|(% style="background-color:#f2f2f2; width:86px" %)GND|(% style="background-color:#f2f2f2; width:84px" %) |(% style="background-color:#f2f2f2; width:322px" %)Ground|(% style="background-color:#f2f2f2; width:296px" %)
178 |(% style="background-color:#f2f2f2; width:44px" %)13|(% style="background-color:#f2f2f2; width:86px" %)VCC(2.9V)|(% style="background-color:#f2f2f2; width:84px" %)OUTPUT|(% style="background-color:#f2f2f2; width:322px" %)VCC|(% style="background-color:#f2f2f2; width:296px" %)Directly connect to main power for board
179 |(% style="background-color:#f2f2f2; width:44px" %)14|(% style="background-color:#f2f2f2; width:86px" %)Jumper|(% style="background-color:#f2f2f2; width:84px" %) |(% style="background-color:#f2f2f2; width:322px" %)Power on/off jumper|(% style="background-color:#f2f2f2; width:296px" %)
180 |(% style="background-color:#f2f2f2; width:44px" %)15|(% style="background-color:#f2f2f2; width:86px" %)PA4|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
181 |(% style="background-color:#f2f2f2; width:44px" %)16|(% style="background-color:#f2f2f2; width:86px" %)NRST|(% style="background-color:#f2f2f2; width:84px" %)In|(% style="background-color:#f2f2f2; width:322px" %)Reset MCU|(% style="background-color:#f2f2f2; width:296px" %)
182 |(% style="background-color:#f2f2f2; width:44px" %)17|(% style="background-color:#f2f2f2; width:86px" %)PA12|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
183 |(% style="background-color:#f2f2f2; width:44px" %)18|(% style="background-color:#f2f2f2; width:86px" %)PA11|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
184 |(% style="background-color:#f2f2f2; width:44px" %)19|(% style="background-color:#f2f2f2; width:86px" %)PA14|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
185 |(% style="background-color:#f2f2f2; width:44px" %)20|(% style="background-color:#f2f2f2; width:86px" %)PB13|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
186 |(% style="background-color:#f2f2f2; width:44px" %)21|(% style="background-color:#f2f2f2; width:86px" %)PB12|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
187 |(% style="background-color:#f2f2f2; width:44px" %)22|(% style="background-color:#f2f2f2; width:86px" %)PB15|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
188 |(% style="background-color:#f2f2f2; width:44px" %)23|(% style="background-color:#f2f2f2; width:86px" %)PB14|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
189 |(% style="background-color:#f2f2f2; width:44px" %)24|(% style="background-color:#f2f2f2; width:86px" %)PA13|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)
190 |(% style="background-color:#f2f2f2; width:44px" %)25|(% style="background-color:#f2f2f2; width:86px" %)PA8|(% style="background-color:#f2f2f2; width:84px" %)In/Out|(% style="background-color:#f2f2f2; width:322px" %)Directly from STM32 chip|(% style="background-color:#f2f2f2; width:296px" %)Default use to turn on/off LED1 in LSN50 image
191 |(% style="background-color:#f2f2f2; width:44px" %)26|(% style="background-color:#f2f2f2; width:86px" %)GND|(% style="background-color:#f2f2f2; width:84px" %) |(% style="background-color:#f2f2f2; width:322px" %)Ground|(% style="background-color:#f2f2f2; width:296px" %)
192 |(% style="background-color:#f2f2f2; width:44px" %)27|(% style="background-color:#f2f2f2; width:86px" %)+5V|(% style="background-color:#f2f2f2; width:84px" %)Out|(% style="background-color:#f2f2f2; width:322px" %)5v output power|(% style="background-color:#f2f2f2; width:296px" %)(((
193 Controlled by PB5(Low to Enable, High to Disable)
194
195 Continuous output : max 600mA
196
197 Pulse output : max 1A
198 )))
199 |(% style="background-color:#f2f2f2; width:44px" %)28|(% style="background-color:#f2f2f2; width:86px" %)LED1|(% style="background-color:#f2f2f2; width:84px" %) |(% style="background-color:#f2f2f2; width:322px" %)Controlled by PA8|(% style="background-color:#f2f2f2; width:296px" %)Blink on transmit
200 |(% style="background-color:#f2f2f2; width:44px" %)29|(% style="background-color:#f2f2f2; width:86px" %)BOOT MODE|(% style="background-color:#f2f2f2; width:84px" %) |(% style="background-color:#f2f2f2; width:322px" %)Configure device in working mode or ISP program mode|(% style="background-color:#f2f2f2; width:296px" %)(((
201 (((
202 Flash: Normal Working mode and send AT Commands
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205 (((
206 ISP: UART Program Mode
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208 )))
209 |(% style="background-color:#f2f2f2; width:44px" %)30|(% style="background-color:#f2f2f2; width:86px" %)NRST|(% style="background-color:#f2f2f2; width:84px" %)In|(% style="background-color:#f2f2f2; width:322px" %)Reset MCU|(% style="background-color:#f2f2f2; width:296px" %)
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211 (% style="display:none" %)
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213
214
215 === 1.5.1 Jumper JP2 ===
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217
218 Power on Device when put this jumper.
219
220
221 === 1.5.2 BOOT MODE / SW1 ===
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223
224 (((
225 ~1. ISP:  upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.
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228 (((
229 2. Flash:  work mode, device starts to work and send out console output for further debug
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231
232
233 === 1.5.3 Reset Button ===
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235
236 Press to reboot the device.
237
238
239 === 1.5.4 LED ===
240
241
242 It will flash:
243
244 ~1. When boot the device in flash mode
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246 2. Send an uplink packet
247
248
249 == 1.6  Hardware Change log ==
250
251
252 (% style="color:red" %)**Note: Hardware version is marked in the PCB.**
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255 (% style="color:#4472c4" %)**LSN50 v2.1:**
256
257 1. Change R14 to 1M ohm
258 1. Change R3, R4 to 4.7Kohm. So no need to modify them for 3 DS18B20 connection.
259 1. Add ESD to each I/O
260
261 (% style="color:#4472c4" %)**LSN50 v2.0:**
262
263 * Change to a new enclosure. Improve with external antenna, IP66, ear hook.
264
265 (% style="color:#4472c4" %)**LSN50 v1.3**:
266
267 * Add P-MOS to control 5V output
268
269 (% style="color:#4472c4" %)**LSN50 v1.2**:
270
271 * Add LED. Turn on for every LoRa transmit
272 * Add pin PA4, PB13, NRST
273 * Add 5V Output, on/off control by PB5(Low to Enable, High to Disable)
274
275
276 == 1.7  Hole Option ==
277
278
279 The LSN50 provides different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below:
280
281 [[image:image-20220627104757-1.png]]
282
283
284 [[image:1656298089706-973.png]]
285
286
287 = 2.  Use LSN50 with LoRaWAN firmware =
288
289 == 2.1  How it works ==
290
291
292 (((
293 (((
294 The LSN50 is pre-loaded with a firmware and is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you just need to input the OTAA keys in the LoRaWAN IoT server and power on the LSN50. It will automatically join the network via OTAA.
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297 (((
298
299 )))
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301 (((
302 The diagram below shows the working flow in default firmware (ver 1.8.0): 
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304
305 )))
306
307 [[image:image-20220823174408-9.png||height="890" width="657"]]
308
309
310 (((
311 In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands>>||anchor="H3.A0UsingtheATCommands"]] to set the keys in the LSN50.
312 )))
313 )))
314
315
316 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
317
318
319 (((
320 Following is an example for how to join the [[TTN V3 LoRaWAN Network>>url:http://www.thethingsnetwork.org/]]. Below is the network structure; we use the [[LG308>>url:http://www.dragino.com/products/lora/item/140-lg308.html]] as a LoRaWAN gateway in this example. 
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322
323 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:1655891470063-521.png]](% title="Click and drag to resize" %)​[[image:1656298385089-555.png]]
324
325
326 )))
327
328 (% _mstmutation="1" title="Click and drag to resize" %)​(%%)The LG308 is already set to connected to [[TTN V3 network >>url:https://www.thethingsnetwork.org/||_mstmutation="1"]], so what we need to now is configure the TTN V3 server.(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
329
330 (((
331
332
333 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSN50.
334
335 Each LSN50 is shipped with a sticker with the default device EUI as below:
336 )))
337
338 (((
339 [[image:image-20230425173445-3.png]]
340 )))
341
342 (% title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
343
344 (((
345 (((
346 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
347 )))
348
349 (((
350 **Register the device：**
351 )))
352 )))
353
354 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​(% _mstaria-label="795587" aria-label="1654935135620-998.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654935135620-998.png||data-widget="image"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](%%)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​​
355
356 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​
357
358
359 **Add APP EUI and DEV EUI：**
360
361
362 (% _mstaria-label="1002404" aria-label="image-20220611161308-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220611161308-4.png||data-widget="image" height="551" width="753"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
363
364
365
366 **Add APP EUI in the application：**
367
368
369 (% _mstaria-label="1002768" aria-label="image-20220611161308-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220611161308-5.png||data-widget="image" height="601" width="742"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
370
371
372 **Add APP KEY**
373
374 (% _mstaria-label="1003132" aria-label="image-20220611161308-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220611161308-6.png||data-widget="image" height="485" width="744"]](% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
375
376 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​
377
378 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
379
380 (% style="color:blue" %)**Step 2**(%%)**:** Power on LSN50
381
382
383 Put a Jumper on JP2 to power on the device.(% style="display:none" %)
384
385 [[image:image-20220627145643-5.png]](% style="display:none" %)
386
387 (% style="display:none" %)
388
389
390 **For LSn50v2:**
391
392 [[image:1656313034748-905.png]](% style="display:none" %)
393
394
395 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(%%)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)​(%%)​
396
397 (((
398 (((
399 (% style="color:blue" %)**Step 3**(%%)**:**  The LSN50 will auto join to the TTN V3 network. After join success, it will start to upload messages to TTN V3 and you can see the messages in the panel.
400
401
402 )))
403 )))
404
405 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% title="Click and drag to resize" %)​[[image:1656312908855-552.png]]
406
407
408 (% style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
409
410 (% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​(% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||data-widget="image" draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% _mstaria-label="548795" aria-label="Data URI image image widget" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="Click and drag to resize" %)​
411
412 == 2.3  ​Working Mode & Uplink Payload ==
413
414
415 (((
416 LSN50 has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command AT+MOD to set LSN50 to different working modes.
417 )))
418
419 (((
420 For example:
421 )))
422
423 (((
424 (% _mstmutation="1" style="color:red" %)**AT+MOD=2  **(%%) ~/~/ will set the LSN50 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
425 )))
426
427 (((
428
429 )))
430
431 (((
432 (% style="color:red" %)**NOTE:**
433 )))
434
435 (((
436 ~1. Some working modes has payload more than 12 bytes, The US915/AU915/AS923 frequency bands' definition has maximum 11 bytes in **DR0**. Server sides will see NULL payload while LSn50 transmit in DR0 with 12 bytes payload.
437
438 2. All modes share the same Payload Explanation from HERE.
439
440 3. By default, the device will send an uplink message every 5 minutes.
441 )))
442
443
444 === 2.3.1  MOD~=1 (Default Mode) ===
445
446
447 (((
448 In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
449
450
451 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
452 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
453 **Size(bytes)**
454 )))|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 170px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)2
455 |(% style="width:97px" %)**Value**|(% style="width:46px" %)Bat|(% style="width:123px" %)Temperature(DS18B20)|(% style="width:108px" %)ADC|(% style="width:133px" %)Temperature（SHT20 or SHT31 or BH1750 Illumination Sensor|(% style="width:159px" %)Humidity（SHT20)
456
457 [[image:image-20220627150949-6.png]]
458 )))
459
460
461 === 2.3.2 MOD~=2 (Distance Mode) ===
462
463
464 This mode is target to measure the distance. The payload of this mode is totally 11 bytes. The 8^^th^^ and 9^^th^^ bytes is for the distance.
465
466 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
467 |(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**2**
468 |**Value**|BAT|(((
469 Temperature(DS18B20)
470 )))|ADC|Digital in & Digital Interrupt|(((
471 Distance measure by:
472 1) LIDAR-Lite V3HP
473 Or
474 2) Ultrasonic Sensor
475 )))|Reserved
476
477 [[image:1656324539647-568.png]]
478
479
480
481 (% style="color:red" %)**Connection of LIDAR-Lite V3HP:**
482
483
484 [[image:1656324581381-162.png]]
485
486
487
488 (% style="color:red" %)**Connection to Ultrasonic Sensor:**
489
490
491 [[image:1656324598488-204.png]]
492
493
494 For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
495
496 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
497 |(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:35px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:35px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**
498 |**Value**|BAT|(% style="width:102px" %)(((
499 Temperature(DS18B20)
500 )))|(% style="width:145px" %)Digital in & Digital Interrupt|ADC|(((
501 Distance measure by:1)TF-Mini plus LiDAR
502 Or 
503 2) TF-Luna LiDAR
504 )))|Distance signal  strength
505
506 [[image:1656376779088-686.png]]
507
508
509
510 (% style="color:red" %)**Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):**
511
512
513 Need to remove R3 and R4 resistors to get low power. Since firmware v1.7.0
514
515
516 [[image:1656376795715-436.png]]
517
518
519
520 (% style="color:red" %)**Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):**
521
522
523 Need to remove R3 and R4 resistors to get low power. Since firmware v1.7.0
524
525
526 [[image:1656376865561-355.png]]
527
528
529 (((
530 Please use firmware version > 1.6.5 when use MOD=2, in this firmware version, user can use LSn50 v1 to power the ultrasonic sensor directly and with low power consumption.
531 )))
532
533
534 === 2.3.3 MOD~=3 (3 ADC + I2C) ===
535
536
537 This mode has total 12 bytes. Include 3 x ADC + 1x I2C
538
539 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
540 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
541 **Size(bytes)**
542 )))|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)1
543 |(% style="width:97px" %)**Value**|(% style="width:46px" %)ADC(Pin PA0)|(% style="width:123px" %)ADC2(PA1)|(% style="width:108px" %)ADC3 (PA4)|(% style="width:133px" %)(((
544 Digital in(PA12)&Digital Interrupt1(PB14)
545 )))|(% style="width:151px" %)Temperature（SHT20 or SHT31 or BH1750 Illumination Sensor）|(% style="width:131px" %)Humidity（SHT20 or SHT31)|(% style="width:66px" %)Bat
546
547 [[image:1656377431497-975.png]]
548
549
550 === 2.3.4 MOD~=4 (3 x DS18B20) ===
551
552
553 This mode is supported in firmware version since v1.6.1. Software set to AT+MOD=4
554
555 Hardware connection is as below,
556
557 (% style="color:red" %)**( Note:**
558
559 * In hardware version v1.x and v2.0 , R3 & R4 should change from 10k to 4.7k ohm to support the other 2 x DS18B20 probes.
560 * In hardware version v2.1 no need to change R3 , R4, by default, they are 4.7k ohm already.
561
562 See [[here>>||anchor="H1.6A0HardwareChangelog" _mstmutation="1"]] for hardware changelog. (% style="color:red" %)**) **
563
564 [[image:1656377461619-156.png]]
565
566
567 This mode has total 11 bytes. As shown below:
568
569 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
570 |(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:60px" %)**2**
571 |**Value**|BAT|(((
572 Temperature1
573 (DS18B20)
574 (PB3)
575 )))|ADC|Digital in & Digital Interrupt|Temperature2
576 (DS18B20)
577 (PA9)|Temperature3
578 (DS18B20)
579 (PA10)
580
581 [[image:1656377606181-607.png]]
582
583
584 === 2.3.5 MOD~=5(Weight Measurement by HX711) ===
585
586
587 (((
588 This mode is supported in firmware version since v1.6.2. Please use v1.6.5 firmware version so user no need to use extra LDO for connection.
589
590
591 )))
592
593 [[image:1656378224664-860.png]]
594
595
596 Each HX711 need to be calibrated before used. User need to do below two steps:
597
598 1. Zero calibration. Don't put anything on load cell and run **AT+WEIGRE** to calibrate to Zero gram.
599 1. Adjust calibration factor (default value 400): Put a known weight thing on load cell and run **AT+WEIGAP** to adjust the Calibration Factor.
600 1. (((
601 Remove the limit of plus or minus 5Kg in mode 5, and expand from 2 bytes to 4 bytes, the unit is g.(Since v1.8.0)
602 )))
603
604 For example:
605
606 (% style="color:#4472c4" %)**AT+WEIGAP =403.0**
607
608 Response:  Weight is 401 g
609
610
611 Check the response of this command and adjust the value to match the real value for thing.
612
613 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:490px" %)
614 |=(% style="width: 60px;background-color:#D9E2F3" %)(((
615 **Size(bytes)**
616 )))|=(% style="width: 30px;background-color:#D9E2F3" %)**2**|=(% style="width: 110px;background-color:#D9E2F3" %)**2**|=(% style="width: 60px;background-color:#D9E2F3" %)**2**|=(% style="width: 130px;background-color:#D9E2F3" %)**1**|=(% style="width: 50px;background-color:#D9E2F3" %)**4**|=(% style="width: 50px;background-color:#D9E2F3" %)2
617 |(% style="width:97px" %)**Value**|(% style="width:40px" %)[[Bat>>||anchor="H2.4.1BatteryInfo"]]|(% style="width:110px" %)[[Temperature(DS18B20)>>||anchor="H2.4.2Temperature28DS18B2029"]]|(% style="width:30px" %)[[ADC>>||anchor="H2.4.4AnalogueDigitalConverter28ADC29"]]|(% style="width:120px" %)[[Digital Input and Digitak Interrupt>>||anchor="H2.4.3DigitalInput"]]|(% style="width:40px" %)Weight|(% style="width:40px" %)Reserved
618
619 [[image:image-20220820120036-2.png||height="469" width="1003"]]
620
621
622 === 2.3.6 MOD~=6 (Counting Mode, Since firmware v1.6.5) ===
623
624
625 (((
626 In this mode, the device will work in counting mode. It counts the interrupt on the interrupt pins and sends the count on TDC time.
627 )))
628
629 (((
630 Connection is as below. The PIR sensor is a count sensor, it will generate interrupt when people come close or go away. User can replace the PIR sensor with other counting sensors.
631 )))
632
633
634 [[image:1656378351863-572.png]]
635
636
637 (((
638 (% style="color:red" %)**Note:**(%%) LoRaWAN wireless transmission will infect the PIR sensor. Which cause the counting value increase +1 for every uplink. User can change PIR sensor or put sensor away of the LSN50 to avoid this happen.
639 )))
640
641
642 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:390px" %)
643 |=(% style="width: 60px;background-color:#D9E2F3" %)**Size(bytes)**|=(% style="width: 50px;background-color:#D9E2F3" %)**2**|=(% style="width: 110px;background-color:#D9E2F3" %)**2**|=(% style="width: 50px;background-color:#D9E2F3" %)**2**|=(% style="width: 70px;background-color:#D9E2F3" %)**1**|=(% style="width: 50px;background-color:#D9E2F3" %)**4**
644 |(% style="width:80px" %)**Value**|(% style="width:44px" %)[[BAT>>||anchor="H2.4.1BatteryInfo"]]|(% style="width:172px" %)(((
645 [[Temperature(DS18B20)>>||anchor="H2.4.2Temperature28DS18B2029"]]
646 )))|(% style="width:51px" %)[[ADC>>||anchor="H2.4.4AnalogueDigitalConverter28ADC29"]]|(% style="width:206px" %)[[Digital in>>||anchor="H2.4.3DigitalInput"]]|(% style="width:72px" %)Count
647
648 [[image:1656378441509-171.png]]
649
650
651 === 2.3.7  MOD~=7 Three interrupt contact modes (the hardware version needs to support three interrupt versions, Since firmware v1.8.0) ===
652
653
654 [[image:image-20220820140109-3.png]]
655
656
657 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:490px" %)
658 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
659 **Size(bytes)**
660 )))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)1|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)2
661 |(% style="width:97px" %)**Value**|(% style="width:46px" %)BAT|(% style="width:123px" %)Temperature(DS18B20)|(% style="width:108px" %)ADC|(% style="width:133px" %)(((
662 Digital in(PA12)&Digital Interrupt1(PB14)
663 )))|(% style="width:159px" %)Digital Interrupt2(PB15)|(% style="width:159px" %)Digital Interrupt3(PA4)|(% style="width:159px" %)Reserved
664
665
666 === 2.3.8  MOD~=8 （3ADC+1DS18B20, Since firmware v1.8.0） ===
667
668
669 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:470px" %)
670 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
671 **Size(bytes)**
672 )))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)2
673 |(% style="width:97px" %)**Value**|(% style="width:46px" %)BAT|(% style="width:123px" %)Temperature(DS18B20)|(% style="width:108px" %)(((
674 ADC1(PA0)
675 )))|(% style="width:133px" %)(((
676 Digital in
677 & Digital Interrupt(PB14)
678 )))|(% style="width:159px" %)(((
679 ADC2(PA1)
680 )))|(% style="width:159px" %)(((
681 ADC3(PA4)
682 )))
683
684 [[image:image-20220823164903-2.png]]
685
686
687 === 2.3.9  MOD~=9 3DS18B20+ two Interrupt count mode (the hardware version needs to support 3 interrupt versions, Since firmware v1.8.0) ===
688
689
690 (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:520px" %)
691 |=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
692 **Size(bytes)**
693 )))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4
694 |(% style="width:97px" %)**Value**|(% style="width:46px" %)BAT|(% style="width:123px" %)(((
695 Temperature1(PB3)
696 )))|(% style="width:108px" %)(((
697 Temperature2(PA9)
698 )))|(% style="width:133px" %)(((
699 Digital in
700 & Digital Interrupt(PA4)
701 )))|(% style="width:159px" %)(((
702 Temperature3(PA10)
703 )))|(% style="width:159px" %)(((
704 Count1(PB14)
705 )))|(% style="width:159px" %)(((
706 Count2(PB15)
707 )))
708
709 (% class="wikigeneratedid" id="H" %)
710 [[image:image-20220823165322-3.png]]
711
712
713 (% style="color:blue" %)**The newly added AT command is issued correspondingly:**
714
715 (% style="color:#4472c4" %)** AT+INTMOD1**(%%) (% style="background-color:yellow" %)** PB14**(%%)  pin：  Corresponding downlink:  (% style="background-color:yellow" %)**06 00 00 xx**
716
717 (% style="color:#4472c4" %)** AT+INTMOD2**(%%)  (% style="background-color:yellow" %)**PB15**(%%) pin：  Corresponding downlink:**  (% style="background-color:yellow" %)06 00 01 xx(%%)**
718
719 (% style="color:#4472c4" %)** AT+INTMOD3** (%%) (% style="background-color:yellow" %)**PA4** (%%) pin：  Corresponding downlink:  ** (% style="background-color:yellow" %)06 00 02 xx(%%)**
720
721
722 (% style="color:blue" %)**AT+SETCNT=aa,bb** 
723
724 When AA is 1, set the count of PB14 pin to BB Corresponding downlink：09 01 bb bb bb bb
725
726 When AA is 2, set the count of PB15 pin to BB Corresponding downlink：09 02 bb bb bb bb
727
728
729 === 2.3.10  ​Decode payload in The Things Network ===
730
731
732 While using TTN V3 network, you can add the payload format to decode the payload.
733
734
735 [[image:1656378466788-734.png]]
736
737
738 (((
739 The payload decoder function for TTN V3 are here:
740 )))
741
742 (((
743 LSN50 TTN V3 Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
744 )))
745
746
747 == 2.4 Payload Explanation and Sensor Interface ==
748
749 === 2.4.1 Battery Info ===
750
751
752 (((
753 Check the battery voltage for LSN50.
754 )))
755
756 (((
757 Ex1: 0x0B45 = 2885mV
758 )))
759
760 (((
761 Ex2: 0x0B49 = 2889mV
762 )))
763
764
765 === 2.4.2 Temperature (DS18B20) ===
766
767
768 If there is a DS18B20 connected to PB3 pin. The temperature will be uploaded in the payload.
769
770 More DS18B20 can check the [[3 DS18B20 mode>>||anchor="2.3.4MOD3D4283xDS18B2029"]]
771
772
773 (% style="color:#4472c4" %)**Connection:**
774
775 [[image:1656378573379-646.png]]
776
777
778 (% style="color:#4472c4" %)**Example**:
779
780 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
781
782 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
783
784 （FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
785
786
787 === 2.4.3 Digital Input ===
788
789
790 The digital input for pin PA12,
791
792 * When PA12 is high, the bit 1 of payload byte 6 is 1.
793 * When PA12 is low, the bit 1 of payload byte 6 is 0.
794
795
796
797 === 2.4.4 Analogue Digital Converter (ADC) ===
798
799
800 (((
801 The ADC pins in LSN50 can measure range from 0~~Vbat, it use reference voltage from STM32. If user need to measure a voltage > VBat, please use resistors to divide this voltage to lower than VBat, otherwise, it may destroy the ADC pin.
802
803 Note: minimum VBat is 2.5v, when batrrey lower than this value. Device won't be able to send LoRa Uplink.
804 )))
805
806
807 (((
808 The ADC monitors the voltage on the PA0 line, in mV.
809 )))
810
811 (((
812 Ex: 0x021F = 543mv,
813 )))
814
815
816 (((
817 (% style="color:#4472c4" %)** Example1:** (%%) Reading an Oil Sensor (Read a resistance value):
818
819
820 )))
821
822 [[image:image-20220627172409-28.png]]
823
824
825 In the LSN50, we can use PB4 and PA0 pin to calculate the resistance for the oil sensor.
826
827
828 (% style="color:blue" %)**Steps:**
829
830 1. Solder a 10K resistor between PA0 and VCC.
831 1. Screw oil sensor's two pins to PA0 and PB4.
832
833 The equipment circuit is as below:
834
835
836 [[image:image-20220627172500-29.png]]
837
838
839 According to above diagram:
840
841 [[image:image-20220628091043-4.png]]
842
843 So
844
845 [[image:image-20220628091344-6.png]]
846
847
848 [[image:image-20220628091621-8.png]] is the reading of ADC. So if ADC=0x05DC=0.9 v and VCC (BAT) is 2.9v
849
850
851 The [[image:image-20220628091702-9.png]] 4.5K ohm
852
853 Since the Bouy is linear resistance from 10 ~~ 70cm.
854
855
856 The position of Bouy is [[image:image-20220628091824-10.png]] , from the bottom of Bouy.
857
858
859 === 2.4.5 Digital Interrupt ===
860
861
862 Digital Interrupt refers to pin PB14, and there are different trigger methods. When there is a trigger, the LSN50 will send a packet to the server.
863
864
865 (((
866 (% style="color:#4472c4" %)** Interrupt connection method:**
867 )))
868
869 [[image:1656379178634-321.png]]
870
871
872 (((
873 (% style="color:#4472c4" %)**Example to use with door sensor : (Requires firmware > 1.5.1)**
874 )))
875
876
877 (((
878 The door sensor is shown at right. It is a two wire magnetic contact switch used for detecting the open/close status of doors or windows.
879 )))
880
881 [[image:1656379210849-860.png]]
882
883
884 (((
885 When the two pieces are close to each other, the 2 wire output will be short or open (depending on the type), while if the two pieces are away from each other, the 2 wire output will be the opposite status. So we can use LSN50 interrupt interface to detect the status for the door or window.
886 )))
887
888
889 (((
890 (% style="color:#4472c4" %)** Below is the installation example:**
891 )))
892
893 (((
894 Fix one piece of the magnetic sensor to the door and connect the two pins to LSN50 as follows:
895 )))
896
897 * (((
898 One pin to LSN50's PB14 pin
899 )))
900 * (((
901 The other pin to LSN50's VCC pin
902 )))
903
904 (((
905 Install the other piece to the door. Find a place where the two pieces will be close to each other when the door is closed. For this particular magnetic sensor, when the door is closed, the output will be short, and PB14 will be at the VCC voltage.
906 )))
907
908
909 (((
910 Door sensors have two types: ** (% style="color:#4472c4" %)NC (Normal close)(%%)** and (% style="color:#4472c4" %)**NO (normal open)**(%%). The connection for both type sensors are the same. But the decoding for payload are reverse, user need to modify this in the IoT Server decoder.
911 )))
912
913 (((
914 When door sensor is shorted, there will extra power consumption in the circuit, the extra current is 3v3/R14 = 3v2/1Mohm = 0.3uA which can be ignored.
915 )))
916
917
918 [[image:1656379283019-229.png]]
919
920
921 (((
922 The above photos shows the two parts of the magnetic switch fitted to a door.
923 )))
924
925 (((
926 (((
927 The software by default uses the falling edge on the signal line as an interrupt. We need to modify it to accept both the rising edge (0v ~-~-> VCC , door close) and the falling edge (VCC ~-~-> 0v , door open) as the interrupt.
928 )))
929 )))
930
931
932 (((
933 The command is:
934 )))
935
936 (((
937 (% _mstmutation="1" style="color:blue" %)**AT+INTMOD=1 **(% _mstmutation="1" %)** **(%%)~/~/(more info about INMOD please refer(% _mstmutation="1" %)** **(%%)[[**AT Command Manual**>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/&file=DRAGINO_LSN50_AT_Commands_v1.5.1.pdf||_mstmutation="1"]](% _mstmutation="1" %)**. **(%%))
938 )))
939
940
941 (((
942 Below shows some screen captures in TTN V3:
943 )))
944
945
946 [[image:1656379339508-835.png]]
947
948
949 In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
950
951 (% style="background-color:#dcdcdc" %)door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
952
953
954 (% style="color:red" %)**Notice for hardware version LSN50 v1 < v1.3**(%%) (produced before 2018-Nov).
955
956 In this hardware version, there is no R14 resistance solder. When use the latest firmware, it should set AT+INTMOD=0 to close the interrupt. If user need to use Interrupt in this hardware version, user need to solder R14 with 10M resistor and C1 (0.1uF) on board.
957
958 [[image:1656379563303-771.png]]
959
960
961 === 2.4.6 I2C Interface (SHT20) ===
962
963
964 (((
965 The PB6(SDA) and PB7(SCK) are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.
966 )))
967
968 (((
969 We have made an example to show how to use the I2C interface to connect to the SHT20 Temperature and Humidity Sensor. This is supported in the stock firmware since v1.5 with (% style="color:#4472c4" %)**AT+MOD=1 (default value).**
970
971 Notice: Different I2C sensors have different I2C commands set and initiate process, if user want to use other I2C sensors, User need to re-write the source code to support those sensors. SHT20 code in LSN50 will be a good reference.
972 )))
973
974 (((
975 Below is the connection to SHT20/ SHT31. The connection is as below:
976 )))
977
978
979 [[image:image-20220902163605-2.png]]
980
981
982 The device will be able to get the I2C sensor data now and upload to IoT Server.
983
984
985 [[image:1656379664142-345.png]]
986
987 Convert the read byte to decimal and divide it by ten.
988
989
990 (% style="color:blue" %)**Example:**
991
992 Temperature:  Read:0116(H) = 278(D)  Value:  278 /10=27.8℃;
993
994 Humidity:    Read:0248(H)=584(D)  Value:  584 / 10=58.4, So 58.4%
995
996
997 If you want to use other I2C device, please refer the SHT20 part source code as reference.
998
999
1000 === 2.4.7 ​Distance Reading ===
1001
1002
1003 Refer [[Ultrasonic Sensor section>>||anchor="H2.4.8UltrasonicSensor"]].
1004
1005
1006 === 2.4.8 Ultrasonic Sensor ===
1007
1008
1009 (((
1010 The LSN50 v1.5 firmware supports ultrasonic sensor (with AT+MOD=2) such as SEN0208 from DF-Robot. This Fundamental Principles of this sensor can be found at this link: [[https:~~/~~/wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU~~_~~__SEN0208>>url:https://wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU___SEN0208]]
1011 )))
1012
1013
1014 (((
1015 The LSN50 detects the pulse width of the sensor and converts it to mm output. The accuracy will be within 1 centimeter. The usable range (the distance between the ultrasonic probe and the measured object) is between 24cm and 600cm.
1016 )))
1017
1018
1019 (((
1020 The picture below shows the connection:
1021 )))
1022
1023 [[image:1656380061365-178.png]]
1024
1025
1026 Connect to the LSN50 and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT).
1027
1028 The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
1029
1030
1031 (% style="color:blue" %)**Example:**
1032
1033 Distance:  Read: 0C2D(Hex) = 3117(D)  Value:  3117 mm=311.7 cm
1034
1035
1036 [[image:1656384895430-327.png]]
1037
1038
1039 [[image:1656384913616-455.png]]
1040
1041
1042 You can see the serial output in ULT mode as below:
1043
1044 [[image:1656384939855-223.png]]
1045
1046
1047 **In TTN V3 server:**
1048
1049
1050 [[image:1656384961830-307.png]]
1051
1052
1053 [[image:1656384973646-598.png]]
1054
1055
1056 === 2.4.9  Battery Output - VDD pin ===
1057
1058
1059 The VDD pin of LSN50v2 is connected to the Battery directly. If users want to use VDD pin to power an external sensor. User need to make sure the external sensor is of low power consumption. Because the VDD pin is always open. If the external sensor is of high power consumption. the battery of LSN50v2 will run out very soon.
1060
1061
1062 === 2.4.10  +5V Output ===
1063
1064
1065 Since v1.2 hardware version, a +5v output is added in the hardware. The +5V output will be valid for every sampling.  LSN50 will enable +5V output before all sampling and disable the +5v after all sampling. 
1066
1067
1068 (((
1069 Since firmware (% style="color:red" %)**v1.6.3**(%%), The 5V output time can be controlled by AT Command.
1070 )))
1071
1072 (((
1073 (% style="color:#4472c4" %)**AT+5VT=1000**
1074 )))
1075
1076 (((
1077 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
1078 )))
1079
1080
1081 (((
1082 By default the AT+5VT=500. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1083 )))
1084
1085
1086 === 2.4.11  Weigh Sensor HX711 ===
1087
1088
1089 Since v1.6.2 firmware, LSN50 support Weigh Sensor HX711.
1090
1091
1092 === 2.4.12  BH1750 Illumination Sensor ===
1093
1094
1095 Since v1.7.0 firmware, MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
1096
1097
1098 [[image:image-20220628110012-11.jpeg]]
1099
1100
1101 [[image:image-20220628110012-12.png]]
1102
1103
1104 === 2.4.13  Working MOD ===
1105
1106
1107 (((
1108 The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
1109 )))
1110
1111 (((
1112 User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
1113 )))
1114
1115 (((
1116 Case 7^^th^^ Byte >> 2 & 0x1f:
1117 )))
1118
1119 * 0: MOD1
1120 * 1: MOD2
1121 * 2: MOD3
1122 * 3: MOD4
1123 * 4: MOD5
1124 * 5: MOD6
1125
1126
1127
1128 == 2.5 Configure LSN50 via AT or Downlink ==
1129
1130
1131 (((
1132 User can configure LSN50 via [[AT Commands >>||anchor="H3.A0UsingtheATCommands"]]or LoRaWAN Downlink Commands
1133 )))
1134
1135 (((
1136 There are two kinds of Commands:
1137 )))
1138
1139 * (% _mstmutation="1" style="color:blue" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.7.0, user can find what common commands it supports:  [[End Device AT Commands>>doc:Main.End Device AT Commands and Downlink Command.WebHome||_mstmutation="1"]]
1140
1141 * (% style="color:blue" %)**Sensor Related Commands**(%%): These commands are special designed for LSN50.  User can see these commands below:
1142
1143
1144
1145 === 2.5.1 Common Commands: ===
1146
1147
1148 They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.7.0, user can find what common commands it supports: [[End Device AT Commands>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
1149
1150
1151 === 2.5.2 Sensor related commands: ===
1152
1153
1154 (% style="color:blue" %)**Set work mode:**
1155
1156 * (% style="color:#037691" %)**AT Command:**
1157
1158 (((
1159 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+MOD=2 **(%%) ~/~/ Set work MOD =2. (1: IIC mode, 2: Distance mode, 3: 3ADC mode, 4: 3DS18B20 mode, 5: weight mode)
1160 )))
1161
1162 (((
1163 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+MOD=?** (%%) ~/~/  Get current work MOD
1164 )))
1165
1166
1167 * (% style="color:#037691" %)**Downlink Payload:**
1168
1169 (% style="background-color:#dcdcdc" %)**0x0A aa** (%%) ~/~/ Same as AT+MOD=aa
1170
1171
1172
1173 (% style="color:blue" %)**Set the trigger interrupt mode:**
1174
1175 * (% style="color:#037691" %)**AT Command:**
1176
1177 (((
1178 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+INTMOD=2**  (%%) ~/~/ Set INTMOD =2. (0: Disable, 1:falling or rising, 2: falling, 3: rising)
1179 )))
1180
1181 (((
1182 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+INTMOD=?**  (%%) ~/~/  Get current INTMOD
1183 )))
1184
1185
1186 * (% style="color:#037691" %)**Downlink Payload:**
1187
1188 (% style="background-color:#dcdcdc" %)**0x06 000003**      (%%) ~/~/ Set AT+INTMOD=3
1189
1190
1191
1192 (% style="color:blue" %)**Set the 5V power open time during sampling:**
1193
1194 * (% style="color:#037691" %)**AT Command:**
1195
1196 (((
1197 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+5VT=1000** (%%) ~/~/ Set 5v open time to 1000ms
1198 )))
1199
1200 (((
1201 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+5VT=?**    (%%) ~/~/  Check current 5v open duration
1202 )))
1203
1204
1205 * (% style="color:#037691" %)**Downlink Payload:**
1206
1207 (% style="background-color:#dcdcdc" %)**0x07 aa bb**    (%%) ~/~/ Equal AT+5VT=0x(aa bb)
1208
1209
1210
1211 (% style="color:blue" %)**Set the weight to 0g (Zero Calibration)：**
1212
1213 * (% style="color:#037691" %)**AT Command:**
1214
1215 (% style="background-color:#dcdcdc" %)**AT+WEIGRE** ** **(%%)** **~/~/ Set the weight to 0g
1216
1217
1218 * (% style="color:#037691" %)**Downlink Payload:**
1219
1220 (% style="background-color:#dcdcdc" %)**0x08 01** (%%) ~/~/ Set the weight to 0g
1221
1222
1223
1224 (% style="color:blue" %)**Get or Set the GAP Value (calibrate factor) of measurement：**
1225
1226 * (% style="color:#037691" %)**AT Command:**
1227
1228 (((
1229 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+WEIGAP=403.0**  (%%) ~/~/ Set GAP Value =403.0 (response: Weight: xx g)
1230 )))
1231
1232 (((
1233 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+WEIGAP=?**  (%%) ~/~/  Get current GAP Value
1234 )))
1235
1236
1237 * (% style="color:#037691" %)**Downlink Payload:**
1238
1239 (% style="background-color:#dcdcdc" %)**0x08 02 aa bb** (%%) ~/~/ Equal to AT+WEIGAP=0x(aa bb)/10
1240
1241
1242
1243 (% style="color:blue" %)**Encrypt upload：**
1244
1245 * (% style="color:#037691" %)**AT Command:**
1246
1247 (((
1248 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+DECRYPT=1**  (%%) ~/~/ The payload is uploaded without encryption
1249 )))
1250
1251 (((
1252 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+DECRYPT=0**  (%%) ~/~/  Encrypt when uploading payload (default)
1253 )))
1254
1255
1256
1257 (% style="color:blue" %)**Get data：**
1258
1259 * (% style="color:#037691" %)**AT Command:**
1260
1261 (((
1262 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+GETSENSORVALUE=0** (%%) ~/~/ The serial port gets the reading of the current sensor
1263 )))
1264
1265 (((
1266 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+GETSENSORVALUE=1** (%%) ~/~/  The serial port gets the current sensor reading and uploads it.
1267
1268
1269
1270 (% style="color:blue" %)**Resets the downlink packet count：**
1271
1272 * (% style="color:#037691" %)**AT Command:**
1273
1274 (((
1275 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+DISFCNTCHECK=0**(% _mstmutation="1" %)**     **(%%) ~/~/(% _mstmutation="1" %)** **(%%)When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1276 )))
1277
1278 (((
1279 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+DISFCNTCHECK=1** (%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count
1280 )))
1281
1282
1283
1284 (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches：**
1285
1286 * (% style="color:#037691" %)**AT Command:**
1287
1288 (((
1289 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+DISMACANS=0**(%%)  ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1290 )))
1291
1292 (((
1293 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+DISMACANS=1** (%%) ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1294 )))
1295
1296 * (% style="color:#037691" %)**Downlink Payload:**
1297
1298 (% class="wikigeneratedid" %)
1299 (% style="background-color:#dcdcdc" %)**0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1300
1301
1302
1303 (% style="color:blue" %)**Copy downlink to uplink：**
1304
1305 * (% style="color:#037691" %)**AT Command:**
1306
1307 (((
1308 (% _mstmutation="1" style="background-color:#dcdcdc" %)**AT+RPL=5**(%%)  ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1309 )))
1310
1311 (% class="wikigeneratedid" %)
1312 Example：(% style="background-color:#dcdcdc" %)**aa xx xx xx xx** (%%) ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1313
1314
1315 (% class="wikigeneratedid" %)
1316 [[image:image-20220823173747-6.png||height="165" width="1124"]]
1317
1318 **For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.**
1319
1320
1321
1322 [[image:image-20220823173833-7.png||height="149" width="1124"]]
1323
1324 **For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.**
1325
1326
1327
1328 (% style="color:blue" %)**Query version number and frequency band 、TDC：**
1329
1330 * (((
1331 (% style="color:#037691" %)**Downlink: 26 01  **(%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1332 )))
1333
1334 **Example：**
1335
1336
1337 [[image:image-20220823173929-8.png||height="76" width="1205"]]
1338
1339
1340
1341 (% style="color:blue" %)**Add rejoin feature if device offline：**
1342
1343 * (% style="color:#037691" %)**AT Command:**
1344
1345 **AT+DDETECT=<Flag>,<ACK_Timout_1>,<ACK_Timout_2>    (Default Value: AT+DDETECT=1,1440,2880)**
1346
1347 (% style="color:red" %)**Flag:** (%%) 1 Enable online detect，0: Disable online detect
1348
1349 (% style="color:red" %)**ACK_Timout_1:**(%%) Unit: min
1350
1351 (% style="color:red" %)**ACK_Timout_2:**(%%) Unit: min
1352
1353
1354 **Example: AT+DDETECT=1,1440,2880**
1355
1356 Enable Online Detect, if end node doesn't receive any downlink within ACK_Timout_1( 1440 minutes or 24 hours). End node will use confirmed uplink to send packets during ACK_Timout_1 (the 24th hour) to ACK_Timout_2 ( the 48th hour).
1357
1358 If from the 24th to 48th hour, end node got an downlink from server, it will switch back to unconfirmed uplink. end node will restart ACK_Timout_1.
1359
1360 If from the 24th to 48th hour, end node still not got any downlink, means device doesn't get ACK in 48 hours. Device will process rejoin, rejoin request interval is AT+RJTDC period. For AU915/ US915, device will use the sub-band used for last join.
1361
1362
1363 * (((
1364 (% style="color:#037691" %)**Downlink: 0x32 01 05A0 0B40 **
1365
1366 0x01 : Flag
1367
1368 0x05A0: ACK_Timout_1
1369
1370 0x0B40: ACK_Timout_2
1371
1372
1373
1374 )))
1375
1376 (% class="wikigeneratedid" %)
1377 (% style="color:blue" %)**Add new feature to control NBTrans for unconfirmed uplink mode：**
1378
1379 * (% style="color:#037691" %)**AT Command:**
1380
1381 (% style="background-color:#dcdcdc" %)** AT+SETMAXNBTRANS=value1,value2   **(%%)** **~/~/ NBTrans specified how many re-transmission for each packet. If LoRaWAN LinkADR from server set NBTrans to high value. The battery will consume fast.
1382
1383 **AT+SETMAXNBTRANS=value1,value2 Default Value: AT+SETMAXNBTRANS=1,0**
1384
1385 (% style="color:red" %)**value1:** (%%) Set max NBTrans. For example, if value1(NBTrans)=1, end node set NBTrans max to 1 , even downlink LinkADR request end node to set NBTrans to higher value such as 6.
1386
1387 (% style="color:red" %)**value2:** (%%) 0: uplink fcnt doesn't change for each NBTrans;  1: uplink fcnt increase by 1 for each NBTrans.
1388
1389 set value2 to 1 for Chirpstack server, because Chirpstack will ignore same FCNT in re-transmission.
1390
1391
1392 **Example: AT+SETMAXNBTRANS=2,1**
1393
1394 Set max NBTrans to 2, fcnt will increase +1 for each NBTrans
1395
1396
1397 * (((
1398 (% style="color:#037691" %)**Downlink: 0x33 02 01**
1399
1400 value1=0x02
1401 )))
1402
1403 (% class="wikigeneratedid" %)
1404 value2=0x01
1405
1406
1407 == 2.6 Show Data in Datacake IoT Server ==
1408
1409
1410 (((
1411 Datacake provides a human friendly interface to show the sensor data, once we have data in TTN V3, we can use Datacake to connect to TTN V3 and see the data in Datacake. Below are the steps:
1412 )))
1413
1414 (((
1415
1416 )))
1417
1418 (((
1419 (% style="color:blue" %)**Step 1**(%%)**:** Be sure that your device is programmed and properly connected to the network at this time.
1420 )))
1421
1422 (((
1423 (% style="color:blue" %)**Step 2**(%%)**:** To configure the Application to forward data to Datacake you will need to add integration. To add the Datacake integration, perform the following steps:
1424 )))
1425
1426
1427 [[image:1656385623971-339.png]]
1428
1429
1430 [[image:1656385646347-395.png]]
1431
1432
1433 [[image:1656385662459-942.png]]
1434
1435
1436 (% style="color:blue" %)**Step 3**(%%)**: **Create an account or log in Datacake.
1437
1438
1439 (% style="color:blue" %)**Step 4**(%%)**:** Search the LSN50 and add DevEUI.
1440
1441
1442 [[image:1656385688973-317.png]]
1443
1444
1445 == 2.7 ​Firmware Change Log ==
1446
1447
1448 (((
1449 **Firmware download: ** [[https:~~/~~/www.dropbox.com/sh/9k0a6sn8a94dc03/AAD54woDmnmAMUMY2WfKfjxoa?dl=0>>https://www.dropbox.com/sh/9k0a6sn8a94dc03/AAD54woDmnmAMUMY2WfKfjxoa?dl=0]]
1450 )))
1451
1452 (((
1453 **Firmware Change Log: **[[https:~~/~~/www.dropbox.com/sh/9k0a6sn8a94dc03/AAD54woDmnmAMUMY2WfKfjxoa?dl=0>>https://www.dropbox.com/sh/9k0a6sn8a94dc03/AAD54woDmnmAMUMY2WfKfjxoa?dl=0]]
1454
1455
1456 )))
1457
1458 == 2.8 Use VDD or +5V to Power External Sensor ==
1459
1460
1461 (((
1462 User can use VDD or +5V to power external sensor.
1463 )))
1464
1465 (((
1466 (% style="color:red" %)**Note:**
1467 )))
1468
1469 1. (((
1470 VDD is 2.5~~3.3v from the battery + diode, the VDD is always on, so when use VDD to power external sensor, make sure the sensor has a low power consumption in sleep mode ( less 50 uA) to get a long battery life.
1471 )))
1472 1. (((
1473 +5V output is only ON when sampling. And MCU will turn off it after sampling. So if sensor can support 5v, +5V out is the best choice. [[See here for more info>>||anchor="H2.4.10A02B5VOutput"]].
1474 )))
1475
1476 (((
1477 (% style="color:red" %)**Note: Always test the actually current pass by the JP2 jumper when connect to a new type of sensor.**
1478 )))
1479
1480
1481 == 2.9 Battery & Power Consumption ==
1482
1483
1484 LSN50v2 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
1485
1486 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
1487
1488
1489 = 3.  Using the AT Commands =
1490
1491 == 3.1  Access AT Commands ==
1492
1493
1494 LSN50 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSN50 for using AT command, as below.
1495
1496
1497 (% style="color:#4472c4" %)**LSN50 v1 UART connection photo**
1498
1499 [[image:image-20220627165424-24.png||height="495" width="486"]]
1500
1501
1502
1503 (% style="color:#4472c4" %)**LSN50 v2 UART connection photo**
1504
1505 [[image:image-20220627165424-25.png||height="437" width="894"]]
1506
1507
1508 (((
1509 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSN50. LSN50 will output system info once power on as below:
1510 )))
1511
1512
1513 [[image:image-20220627165531-26.png||height="624" width="893"]](% style="display:none" %)
1514
1515
1516 == 3.2  Common AT Command Sequence ==
1517
1518 === 3.2.1  Multi-channel ABP mode (Use with SX1301/LG308) ===
1519
1520
1521 (((
1522 (% style="color:#037691" %)**If device has not joined network via OTAA:**
1523 )))
1524
1525 (((
1526 (% style="background-color:#dcdcdc" %)**AT+FDR**
1527 )))
1528
1529 (((
1530 (% style="background-color:#dcdcdc" %)**AT+NJM=0**
1531 )))
1532
1533 (((
1534 (% style="background-color:#dcdcdc" %)**ATZ**
1535 )))
1536
1537
1538 (((
1539 (% style="color:#037691" %)**If device already joined network:**
1540 )))
1541
1542 (((
1543 (% style="background-color:#dcdcdc" %)**AT+NJM=0**
1544 )))
1545
1546 (((
1547 (% style="background-color:#dcdcdc" %)**ATZ**
1548 )))
1549
1550
1551 === 3.2.2  Single-channel ABP mode (Use with LG01/LG02) ===
1552
1553
1554 See [[Sect 6.7>>||anchor="H6.7A0HowtoconfiguretheEUIkeysinLSN503F"]]
1555
1556
1557 = 4.  Upload Firmware =
1558
1559
1560 (% style="color:red" %)**Notes**:
1561
1562 * Since image v1.3, the firmware will show version info during boot. If your device doesn't show version info, you may have a very old image version.
1563 * Always run AT+FDR to reset parameters to factory default after an update image.
1564 If the update is from image >= v1.3 to another image version >=v1.3, then the keys will be kept after running AT+FDR.
1565 Otherwise (e.g. from v1.2 to v1.3), AT+FDR may erase the keys.
1566
1567
1568
1569 == 4.1  Upload Firmware via Serial Port ==
1570
1571
1572 The LSN50's AT Command port can be used for firmware upgrade. The hardware connection for upgrade firmware is as below:
1573
1574
1575 [[image:image-20220627163506-18.png||height="426" width="418"]]
1576
1577
1578 (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1579
1580
1581 (% style="color:blue" %)**Step2**(%%)**:** Download the [[LSN50 Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AADnMzn1IN0LssOQNHlvooTta/LSN50%20%26%20LSN50-v2/Firmware/LSN50.hex?dl=0&subfolder_nav_tracking=1]].
1582
1583
1584 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update
1585
1586
1587 [[image:image-20220627163821-19.png]]
1588
1589
1590 [[image:image-20220627163930-20.png||height="450" width="751"]]
1591
1592
1593 [[image:image-20220627164030-21.png||height="459" width="750"]]
1594
1595
1596 (((
1597 (% style="color:blue" %)**Step4**(%%)**: **Switch SW1 back to flash state and push the RESET button.
1598 )))
1599
1600 (((
1601 The LSN50 will then run the new firmware.
1602 )))
1603
1604
1605 == 4.2  Upload Firmware via ST-Link V2 ==
1606
1607
1608 You can use ST-LINK to upgrade firmware into LSN50. The hardware connection for upgrade firmware is as below:
1609
1610
1611 [[image:1656319349131-664.png]]
1612
1613
1614 (% style="color:blue" %)**Connection:**
1615
1616 * (% style="background-color:yellow" %)**ST-LINK v2 GND  <~-~-> LSN50 GND**
1617 * (% style="background-color:yellow" %)**ST-LINK v2 SWCLK <~-~-> LSN50 PA14**
1618 * (% style="background-color:yellow" %)**ST-LINK v2 SWDIO <~-~-> LSN50 PA13**
1619 * (% style="background-color:yellow" %)**ST-LINK v2 RST  <~-~->  LSN50 NRST**
1620
1621 (% style="color:blue" %)**Step1:**(%%) Install [[ST-LINK driver>>url:https://www.stmicroelectronics.com.cn/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-utilities/stsw-link009.html]] first and then install [[ST-LINK Utility>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link004.html]]
1622
1623
1624 (% style="color:blue" %)**Step2**(%%): Download the [[LSN50 Image files>>url:https://github.com/dragino/LoRa_STM32/tree/master/LSN50.hex]].
1625
1626
1627 (% style="color:blue" %)**Step3:**(%%)** **Open ST-LINK utility, (% style="color:blue" %)**file ~-~-> open file**(%%) to select the image to be upgraded.
1628
1629
1630 (% style="color:blue" %)**Step4:**(%%)** **Click the “(% style="color:blue" %)**Program Verify**”(%%) button on ST-LINK.
1631
1632
1633 [[image:image-20220627164303-22.png]]
1634
1635
1636 (((
1637 (% style="color:blue" %)**Step5:**(%%)** **The led on the ST-LINK adapter will now blinking, and the ST-Link utility will pop up a download window. Click the start button to download the image to LSN50.
1638 )))
1639
1640 (((
1641 (% style="color:red" %)**NOTE: If this step fails, ST-LINK can't establish connection to LSN50, please try to swap SWDIO & SWCLK pin. Some ST-LINK v2 devices are incorrectly marked.**
1642 )))
1643
1644
1645
1646 [[image:image-20220627164303-23.png]]
1647
1648
1649 = 5.  Developer Guide =
1650
1651
1652 * (((
1653 Software Source Code Download : [[https:~~/~~/github.com/dragino/LoRa_STM32/tree/master/STM32CubeExpansion_LRWAN>>https://github.com/dragino/LoRa_STM32/tree/master/STM32CubeExpansion_LRWAN]]
1654 )))
1655 * (((
1656 Hardware Source Code Download: [[https:~~/~~/github.com/dragino/Lora/tree/master/LSN50>>https://github.com/dragino/Lora/tree/master/LSN50]]
1657 )))
1658
1659 (((
1660 LSN50 is an open source project, developer can use compile their firmware for customized applications. User can get the source code from:
1661 )))
1662
1663 * (((
1664 Software Source Code: [[https:~~/~~/github.com/dragino/LoRa_STM32/tree/master/STM32CubeExpansion_LRWAN>>url:https://github.com/dragino/LoRa_STM32/tree/master/STM32CubeExpansion_LRWAN||_mstmutation="1"]]
1665 )))
1666 * (((
1667 Hardware Design files:  [[https:~~/~~/github.com/dragino/Lora/tree/master/LSN50>>url:https://github.com/dragino/Lora/tree/master/LSN50]]
1668 )))
1669 * (((
1670 Compile instruction:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Compile%20Instruction%20~~-~~-%20STM32/>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Compile%20Instruction%20--%20STM32/]]
1671 )))
1672
1673 (((
1674 Use Keil to open project file:
1675 )))
1676
1677 (((
1678 STM32CubeExpansion_LRWAN/Projects/Multi/Applications/LoRa/DRAGINO-LRWAN(AT)/MDK-ARM/STM32L072CZ-Nucleo/Lora.uvprojx
1679 )))
1680
1681 (((
1682
1683 )))
1684
1685 (((
1686 In Keil, you can see what frequency band the code support.
1687 )))
1688
1689 [[image:image-20220627162417-15.png]]
1690
1691
1692 **~1. If you want to change frequency, modify the Preprocessor Symbols.**
1693
1694
1695 For example, change EU868 to US915
1696
1697 [[image:1656318662202-530.png]]
1698
1699
1700 **2. Compile and build**
1701
1702 [[image:image-20220627163212-17.png]]
1703
1704
1705 = 6.  FAQ =
1706
1707 == 6.1  Why there is 433/868/915 version? ==
1708
1709
1710 (((
1711 Different countries have different rules for the ISM band for LoRa. Although the LoRa chip can support a wide range of Frequencies, we provide different versions of the hardware for best tune of the LoRa hardware part.
1712 )))
1713
1714
1715 == 6.2 What is the frequency range of LT LoRa part? ==
1716
1717
1718 Different LT version supports different frequency range, below is the table for the working frequency and recommend bands for each model:
1719
1720 [[image:image-20220627155456-9.png]]
1721
1722
1723 == 6.3  How to change the LoRa Frequency Bands/Region? ==
1724
1725
1726 You can follow the instructions for [[how to upgrade image>>||anchor="H2.7200BFirmwareChangeLog"]].
1727 When downloading the images, choose the required image file for download.
1728
1729
1730 == 6.4  Can I use Private LoRa protocol? ==
1731
1732
1733 (((
1734 (((
1735 The stock firmware is based on LoRaWAN protocol. You can use a private LoRa protocol in LSN50. This section describes an example for base LoRa transfer. It is a reference/demo and we do not provide further software development support on this topic.
1736 )))
1737
1738 (((
1739 In this demo, we will show the communication between LoRa Shield and LSN50, both of them using the basic LoRa library. LSN50 will send a message to a LoRa Shield and the LoRa Shield will print it to the console.
1740 )))
1741
1742
1743 )))
1744
1745 (% style="color:#4472c4" %)**LoRa Shield + UNO**:
1746
1747 Use the [[LoRa Library>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/LoRa_Raw_Example/Arduino/&file=LoRa.zip]] and upload the [[LoRa Receive>>http://www.dragino.com/downloads/downloads/LSN50-LoRaST/LoRa_Raw_Example/Arduino/LoRaReceiver.ino]] Sketch to Arduino.
1748
1749
1750 Refs:  [[https:~~/~~/www.dropbox.com/sh/u9s41qdx5yujwcb/AAAT5r4QkMaeOogWrzJt7Wn4a?dl=0>>https://www.dropbox.com/sh/u9s41qdx5yujwcb/AAAT5r4QkMaeOogWrzJt7Wn4a?dl=0]]
1751
1752
1753 Open the serial monitor to Arduino. The device acts as a LoRa Receiver and listen on the frequency 868.3Mhz by default.
1754
1755
1756 (% style="color:#4472c4" %)**LSN50**:
1757
1758 Use the <[[LoRa RAW code>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/LoRa_Raw_Example/LSN50/&file=lora_send.zip]]> . The project file is in: MDK-ARM\STM32L072CZ-Nucleo\ Lora.uvprojx
1759
1760 Compile it and Upload it to LSN50, the LSN50 will transfer on the frequency 868.3Mhz.
1761
1762 In the Arduino Console, it will see the received packets as below.
1763
1764
1765 [[image:image-20220627160116-10.png]]
1766
1767
1768 == 6.5  How to set up LSN50 to work in 8 channel mode ==
1769
1770
1771 (((
1772 By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies.
1773 )))
1774
1775 (((
1776 You can configure the end node to work in 8 channel mode by using the AT+CHE command. The 500kHz channels are always included for OTAA.
1777 )))
1778
1779 (((
1780
1781 )))
1782
1783 (((
1784 For example, in (% style="color:blue" %)**US915**(%%) band, the frequency table is as below. By default, the end node will use all channels (0~~71) for OTAA Join process. After the OTAA Join, the end node will use these all channels (0~~71) to send uplink packets.
1785 )))
1786
1787 [[image:image-20220627160940-13.png]]
1788
1789
1790 (((
1791 When you use the TTN V3 network, the US915 frequency bands use are:
1792 )))
1793
1794 * (((
1795 903.9 - SF7BW125 to SF10BW125
1796 )))
1797 * (((
1798 904.1 - SF7BW125 to SF10BW125
1799 )))
1800 * (((
1801 904.3 - SF7BW125 to SF10BW125
1802 )))
1803 * (((
1804 904.5 - SF7BW125 to SF10BW125
1805 )))
1806 * (((
1807 904.7 - SF7BW125 to SF10BW125
1808 )))
1809 * (((
1810 904.9 - SF7BW125 to SF10BW125
1811 )))
1812 * (((
1813 905.1 - SF7BW125 to SF10BW125
1814 )))
1815 * (((
1816 905.3 - SF7BW125 to SF10BW125
1817 )))
1818 * (((
1819 904.6 - SF8BW500
1820 )))
1821
1822 (((
1823 Because the end node is now hopping in 72 frequency, it makes it difficult for the devices to Join the TTN V3 network and uplink data. To solve this issue, you can access the device via the AT commands and run:
1824 )))
1825
1826 (((
1827 (% style="color:blue" %)**AT+CHE=2**
1828 )))
1829
1830 (((
1831 (% style="color:blue" %)**ATZ**
1832 )))
1833
1834
1835 (((
1836 to set the end node to work in 8 channel mode. The device will work in Channel 8-15 & 64-71 for OTAA, and channel 8-15 for Uplink.
1837 )))
1838
1839 (((
1840 The (% style="color:blue" %)**AU915**(%%) band is similar. Below are the AU915 Uplink Channels.
1841 )))
1842
1843 [[image:image-20220627161124-14.png]]
1844
1845
1846 == 6.6  How to set up LSN50 to work with Single Channel Gateway such as LG01/LG02? ==
1847
1848
1849 (((
1850 In this case, users need to set LSN50 to work in ABP mode and transmit in only one frequency.
1851 )))
1852
1853 (((
1854 Assume we have a LG02 working in the frequency 868400000 now, below is the steps.
1855 )))
1856
1857
1858 (((
1859 (% style="color:blue" %)**Step1: **(%%)Log in TTN V3, Create an ABP device in the application and input the network session key (NETSKEY), app session key (APPSKEY) from the device.
1860 )))
1861
1862
1863 [[image:image-20220627160542-11.png]]
1864
1865
1866 (((
1867 (% style="color:red" %)**Note: You need to make sure the above three keys match in the device and in TTN V3. You can change them either in TTN V3 or in the Device to make them match. In TTN V3, NETSKEY and APPSKEY can be configured in the setting page, but the Device Addr is generated by TTN V3.**
1868 )))
1869
1870
1871 (((
1872 (% style="color:red" %)**You can also change the Device ADDR in TTN V3 by using the [[The Things Network CLI>>url:https://www.thethingsnetwork.org/docs/network/cli/quick-start.html]].**
1873 )))
1874
1875
1876 (((
1877 (% style="color:blue" %)**Step2:  **(%%)Run AT commands to make the LSN50 work in Single frequency and ABP mode. Below are the AT commands:
1878 )))
1879
1880
1881 (((
1882 (% style="background-color:#dcdcdc" %)AT+FDR(%%)  ：  Reset Parameters to Factory Default, Keys Reserve
1883 )))
1884
1885 (((
1886 (% style="background-color:#dcdcdc" %)AT+NJM=0(%%) ： Set to ABP mode
1887 )))
1888
1889 (((
1890 (% style="background-color:#dcdcdc" %)AT+ADR=0(%%) ： Set the Adaptive Data Rate Off
1891 )))
1892
1893 (((
1894 (% style="background-color:#dcdcdc" %)AT+DR=5(%%)  ： Set Data Rate (Set AT+DR=3 for 915 band)
1895 )))
1896
1897 (((
1898 (% style="background-color:#dcdcdc" %)AT+TDC=300000(%%)  ：  Set transmit interval to 5 minutes
1899 )))
1900
1901 (((
1902 (% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%) ： Set transmit frequency to 868.4Mhz
1903 )))
1904
1905 (((
1906 (% style="background-color:#dcdcdc" %)AT+DADDR=26 01 1A F1(%%)  ：Set Device Address to 26 01 1A F1
1907 )))
1908
1909 (((
1910 (% style="background-color:#dcdcdc" %)ATZ(%%)  ：  Reset MCU
1911 )))
1912
1913
1914 (((
1915 As shown  below:
1916 )))
1917
1918 [[image:image-20220627160542-12.png]]
1919
1920
1921 == 6.7  How to configure the EUI keys in LSN50? ==
1922
1923
1924 (((
1925 The early version of LSN50 firmware doesn't have pre-configured keys.
1926 It is recommended that you update the image to the latest version before configure the keys. Refer [[upgrade_image>>||anchor="H2.7200BFirmwareChangeLog"]] to update the firmware to the latest version.
1927 )))
1928
1929 (((
1930 Run AT commands to set the keys to desired keys; refer [[AT Command manual>>https://www.dragino.com/downloads/downloads/LSN50-LoRaST/DRAGINO_LSN50_AT_Commands_v1.6.3.pdf]].
1931 )))
1932
1933
1934 = 7.  Trouble Shooting =
1935
1936 == 7.1  Connection problem when uploading firmware. ==
1937
1938
1939 (((
1940 (% style="color:red" %)**Issue**(%%): While using USB to TTL to upload firmware via UART interface. It works for several times but most of times it fails.
1941 )))
1942
1943 (((
1944
1945 )))
1946
1947 (((
1948 (% style="color:green" %)**Checklist**:
1949 )))
1950
1951 (((
1952 ~1. Double check if follow up exactly the steps as manual.
1953 )))
1954
1955 (((
1956 2. Check if hardware works fine: a) check if AT command works, b) check if ISP / flash switch works: PA12 will have different output level while set the ISP/Flash Switch in different position. c) check if reset button works.
1957 )))
1958
1959 (((
1960 3. If you use Windows10 system. Please change the flash loader to run in Windows7 compatibility mode.
1961 )))
1962
1963
1964 [[image:image-20220627153421-8.png]]
1965
1966
1967 (((
1968 4. We have seen cases where the FT232 USB TTL adapter has a reliability issue with the PC USB chipset (Intel). In this case, even though points 1 and 2 above work, it still has a reliability issue for uploading. If this happens, change to a different PC or change the USB to TTL adapter to solve the issue.
1969 )))
1970
1971
1972 == 7.2  Why I can't join TTN V3 in US915 / AU915 bands? ==
1973
1974
1975 It is due to channel mapping. Please see the [[Eight Channel Mode>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.19EightChannelMode"]] section above for details.
1976
1977
1978 == 7.3  AT Command input doesn't work ==
1979
1980
1981 In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:red" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:red" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
1982
1983
1984 = 8.  Order Info =
1985
1986
1987 Part Number: (% style="color:blue" %)**LSN50-XX-YY  **(%%)**or  (% style="color:blue" %)LSN50-v2-XX-YY-ZZ(%%)**
1988
1989 (% style="color:blue" %)**XX**(%%): The default frequency band
1990
1991 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
1992 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
1993 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
1994 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
1995 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
1996 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
1997 * (% style="color:red" %)**IN865 **(%%)**:**  LoRaWAN IN865 band
1998 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
1999
2000 (% style="color:blue" %)**YY**(%%)**: **Hole Option
2001
2002 * (% style="color:red" %)**12**(%%): With M12 waterproof cable hole
2003 * (% style="color:red" %)**16**(%%): With M16 waterproof cable hole
2004 * (% style="color:red" %)**20**(%%): With M20 waterproof cable hole (LSN50 v2 doesn't have this version)
2005 * (% style="color:red" %)**NH**(%%): No Hole
2006
2007 (% style="color:blue" %)**ZZ**(%%)**: **Battery Option ( Only valid for v2 model)
2008
2009 * (% style="color:red" %)**4**(%%): with 4000mAh battery
2010 * (% style="color:red" %)**8**(%%): with 8500mAg battery
2011
2012
2013
2014 = 9. ​ Packing Info =
2015
2016
2017 (% style="color:blue" %)**For LSN50**(%%)**:**
2018
2019 **Package Includes**:
2020
2021 * LSN50 LoRa Sensor Node x 1
2022
2023 **Dimension and weight**:
2024
2025 * Device Size: 8 x 6.5 x 5 cm
2026 * Device Weight: 137g
2027 * Package Size / pcs : 9 x 7 x 6cm
2028 * Weight / pcs : 160g
2029
2030
2031 (% style="color:blue" %)**For LSN50 v2**(%%)**:**
2032
2033 **Package Includes**:
2034
2035 * LSN50 v2 LoRa Sensor Node x 1
2036 * External antenna x 1
2037 * Spring Antenna (evaluate purpose)
2038
2039 **Dimension and weight**:
2040
2041 * Device Size: 9.7 x 6.5 x 4.7 cm
2042 * Device Weight: 150g
2043 * Package Size / pcs : 14.0 x 8x 5 cm
2044 * Weight / pcs : 180g
2045
2046
2047
2048 = 10.  ​Support =
2049
2050
2051 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
2052 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].
2053
2054
2055
2056 = 11.  References =
2057
2058
2059 * [[Product Page>>url:http://www.dragino.com/products/lora/item/128-lsn50.html]]
2060 * [[Data Sheet, Document Base>>https://www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0]]
2061 * [[Image Download>>url:https://github.com/dragino/LoRa_STM32/tree/master/LSN50.hex]]
2062 )))

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