Version 327.2 by Xiaoling on 2023/04/11 16:19
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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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35 = 1.  Introduction =
36
37 == 1.1 ​ What is LSN50V2-S31 LoRaWAN Temperature & Humidity Sensor ==
38
39
40 (((
41 The Dragino LSN50v2-S31 is a (% style="color:#4472c4" %)**LoRaWAN Temperature and Humidity Sensor**(%%) for Internet of Things solution. It is used to measure the (% style="color:#4472c4" %)**surrounding environment temperature and relative air humidity precisely**(%%), and then upload to IoT server via LoRaWAN wireless protocol.
42 )))
43
44 (((
45 The temperature & humidity sensor used in LSN50v2-S31 is SHT31, which is fully calibrated, linearized, and temperature compensated digital output from Sensirion, it provides a strong reliability and long-term stability. The SHT31 is fixed in a (% style="color:#4472c4" %)**waterproof anti-condensation casing **(%%)for long term use.
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47
48 (((
49 LSN50v2-S31 supports (% style="color:#4472c4" %)**temperature and humidity alarm feature**(%%), user can get alarm for instant notice.
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51
52 (((
53 LSN50v2-S31 is powered by(% style="color:#4472c4" %)**8500mAh Li-SOCI2 battery**(%%), It is designed for long term use up to 10 years. (Real-world battery life depends on the use environment, update period. Please check related Power Analyze report).
54 )))
55
56 (((
57 Each LSN50v2-S31 is pre-load with a set of unique keys for LoRaWAN registration, register these keys to local LoRaWAN server and it will auto connect after power on.
58 )))
59
60
61 [[image:1655968636488-753.png]]
62
63
64 == 1.2  Specifications ==
65
66
67 (% style="color:#037691" %)**Micro Controller:**
68
69 * MCU: STM32L072xxxx
70 * Flash:128KB
71 * RAM:20KB
72 * EEPROM: 6KB
73 * Clock Speed: 32Mhz
74
75 (% style="color:#037691" %)**Common DC Characteristics:**
76
77 * Supply Voltage: built in 8500mAh Li-SOCI2 battery
78 * Operating Temperature: -40 ~~ 85°C
79
80 (% style="color:#037691" %)**Temperature Sensor:**
81
82 * Range: -40 to + 80°C
83 * Accuracy: ±0.2 @ 0-90 °C
84 * Resolution: 0.1°C
85 * Long Term Shift: <0.03 °C/yr
86
87 (% style="color:#037691" %)**Humidity Sensor: **
88
89 * Range: 0 ~~ 99.9% RH
90 * Accuracy: ± 2%RH ( 0 ~~ 100%RH)
91 * Resolution: 0.01% RH
92 * Long Term Shift: <0.25 %RH/yr
93
94 (% style="color:#037691" %)**LoRa Spec:**
95
96 * Frequency Range,
97 ** Band 1 (HF): 862 ~~ 1020 Mhz
98 * 168 dB maximum link budget.
99 * High sensitivity: down to -148 dBm.
100 * Bullet-proof front end: IIP3 = -12.5 dBm.
101 * Excellent blocking immunity.
102 * Built-in bit synchronizer for clock recovery.
103 * Preamble detection.
104 * 127 dB Dynamic Range RSSI.
105 * Automatic RF Sense and CAD with ultra-fast AFC.
106 * LoRaWAN 1.0.3 Specification
107
108 (% style="color:#037691" %)**Power Consumption**
109
110 * Sleeping Mode: 20uA
111 * LoRaWAN Transmit Mode: 125mA @ 20dBm 44mA @ 14dBm
112
113
114
115 == ​1.3  Features ==
116
117
118 * LoRaWAN v1.0.3 Class A
119 * Ultra-low power consumption
120 * External 3 meters SHT31 probe
121 * Measure range -55°C ~~ 125°C
122 * Temperature & Humidity alarm
123 * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
124 * AT Commands to change parameters
125 * Uplink on periodically or Interrupt
126 * Downlink to change configure
127 * 8500mAh Battery for long term use
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129
130
131 == 1.4 ​ Applications ==
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133
134 * Wireless Alarm and Security Systems
135 * Home and Building Automation
136 * Industrial Monitoring and Control
137 * Long range Irrigation Systems.
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139
140
141 == 1.5  Pin Definitions and Switch ==
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144 (% class="wikigeneratedid" %)
145 [[image:1655890786311-614.png||height="377" width="733"]]
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147
148 The latest mother board for LSN50v2-S31 is :
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150 [[image:image-20230406112239-3.png||height="410" width="731"]]
151
152
153 === 1.5.1 Pin Definition ===
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156 The device is pre-configured to connect to SHT31 sensor. The other pins are not used. If user want to know more about other pins, please refer the user manual of LSn50v2 at: [[https:~~/~~/www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0>>https://www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0]]
157
158
159 === 1.5.2 Jumper JP2 ===
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161
162 Power on Device when put this jumper.
163
164
165 === 1.5.3 BOOT MODE / SW1 ===
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168 (((
169 ~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.
170 )))
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172 (((
173 2. Flash:  work mode, device starts to work and send out console output for further debug
174 )))
175
176
177 === 1.5.4 Reset Button ===
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179
180 Press to reboot the device.
181
182
183 === 1.5.5 LED ===
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186 It will flash:
187
188 1.  When boot the device in flash mode
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190 2.  Send an uplink packet
191
192
193 === 1.5.6  Probe Dimension ===
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196 [[image:1655970095830-106.png]]
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198
199 == (% id="cke_bm_478801S" style="display:none" %) (%%)1.6  Hardware Variant ==
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202 (% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
203 |=(% style="width: 108px;" %)Model|=(% style="width: 138px;" %)Photo|=(% style="width: 203px;" %)**Description     **
204 |(% style="width:108px" %)LSN50v2-S31|(% style="width:138px" %)[[image:1655969394811-263.png]]|(% style="width:203px" %)(((
205 External 3 meters SHT31 probe
206 )))
207 |(% style="width:108px" %)LSN50v2 -S31B|(% style="width:138px" %)[[image:1655969407614-262.png]]|(% style="width:203px" %)(((
208 On device SHT31 Probe
209 )))
210
211
212
213 = 2.  How to use LSN50v2-S31? =
214
215 == 2.1  How it works ==
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217
218 (((
219 The LSN50v2-S31 is working as LoRaWAN OTAA Class A end node. Each LSN50v2-S31 is shipped with a worldwide unique set of OTAA and ABP keys. User needs to input the OTAA or ABP keys in the LoRaWAN network server to register. Open the enclosure and power on the LSN50v2-S31, it will join the LoRaWAN network and start to transmit data. The default period for each uplink is 20 minutes.
220 )))
221
222
223 == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
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225
226 (((
227 Here is an example for how to join the [[TTN LoRaWAN >>url:http://www.thethingsnetwork.org/]]Server. Below is the network structure, in this demo we use [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] as LoRaWAN gateway.
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230 (% 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:1655970238866-880.png]]
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234 (((
235 The DLOS8 is already set to connect to [[TTN >>url:https://www.thethingsnetwork.org/]]. What the rest we need to is register the LSN50V2-S31 to TTN:
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238 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSN50V2-S31.
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240 Each LSN50V2-S31 is shipped with a sticker with the default device EUI as below:
241 )))
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244 (% aria-label="image-20220607170145-1.jpeg image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220607170145-1.jpeg||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"]](% title="Click and drag to resize" %)​(% 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"]](% 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"]](% 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" %)​(% 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"]](% 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"]](% 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" %)​(% 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" %)​(% 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" %)​(%%)​
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247 (((
248 You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
249
250 **Register the device：**
251 )))
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253 (% 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"]](% 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"]](% 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" %)​(% 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"]](%%)​(% 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"]](% 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"]](% 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" %)​(% 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"]](% 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"]](% 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" %)​​
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255 (% 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"]](% 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"]](% 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" %)​
256
257
258 **Add APP EUI and DEV EUI：**
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261 (% 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" %)​
262
263
264 **Add APP EUI in the application：**
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267 (% 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" %)​
268
269
270 **Add APP KEY**
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272 (% 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" %)​
273
274 (% 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"]](% 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"]](% 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" %)​(% 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"]](% 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"]](% 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" %)​
275
276 (% 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"]](% 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"]](% 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" %)​(% 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" %)​(% 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" %)​(%%)​
277
278 (% style="color:blue" %)**Step 2**(%%): Power on LSN50v2-S31
279
280 [[image:1655891678689-137.png]]
281
282 (% 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"]](% 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"]](% 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" %)​(% 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"]](%%)​(% 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"]](% 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"]](% 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" %)​(% 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" %)​(% 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" %)​(%%)​
283
284
285 (((
286 (% style="color:blue" %)**Step 3**(%%)**:**  LSN50V2-S31 will auto join to TTN network via the LoRaWAN coverage by DLOS8. After join success, LSN50V2-S31 will start to uplink temperature value to server.
287 )))
288
289 (% 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"]](% 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"]](% 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" %)​(% 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"]](%%)​(% 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"]](% 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"]](% 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" %)​(% 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"]](% 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"]](% 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" %)​​
290
291 == 2.3  ​Uplink Payload ==
292
293 === 2.3.1  Payload Analyze ===
294
295
296 (((
297 Normal Upload Payload:
298 )))
299
300 (((
301 LSN50v2-S31 use the same payload as LSn50v2 mod1, as below. （Since firmware version 1.8.0, the third to sixth bytes are timestamps）
302 )))
303
304 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:400px" %)
305 |=(% style="width: 95px;" %)(((
306 **Size(bytes)**
307 )))|=(% style="width: 36px;" %)2|=(% style="width: 60px;" %)4|=(% style="width: 65px;" %)1|=(% style="width: 65px;" %)**2**|=(% style="width: 65px;" %)2
308 |(% style="width:95px" %)**Value**|(% style="width:36px" %)(((
309 [[Battery>>||anchor="HBattery:"]]
310 )))|(% style="width:61px" %)(((
311 [[Unix TimeStamp>>||anchor="H2.4.1UnixTimeStamp"]]
312 )))|(% style="width:91px" %)(((
313 [[Alarm Flag>>||anchor="HAlarmFlag26MOD:"]]
314 )))|(% style="width:99px" %)(((
315 [[Temperature>>||anchor="HTemperature:"]]
316 )))|(% style="width:97px" %)(((
317 [[Humidity>>||anchor="HHumidity:"]]
318 )))
319
320 [[image:image-20230330135457-3.png]]
321
322
323 ==== (% style="color:#4472c4" %)**Battery:**(%%) ====
324
325
326 Check the battery voltage.
327
328 Ex1: 0x0B45 = 2885mV
329
330 Ex2: 0x0B49 = 2889mV
331
332
333
334 ==== (% style="color:#4472c4" %)**Temperature:**(%%) ====
335
336
337 **Example**:
338
339 If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
340
341 If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
342
343 （FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
344
345
346
347 ==== (% style="color:#4472c4" %)**Humidity:**(%%) ====
348
349
350 Read:0x(0197)=412    Value:  412 / 10=41.2, So 41.2%
351
352
353
354 ==== (% style="color:#4472c4" %)**Alarm Flag& MOD:**(%%) ====
355
356
357 **Example:**
358
359 If payload & 0x01 = 0x01  **~-~->** This is an Alarm Message
360
361 If payload & 0x01 = 0x00  **~-~->** This is a normal uplink message, no alarm
362
363 If payload >> 2 = 0x00  **~-~->**  means MOD=1, This is a sampling uplink message
364
365 If payload >> 2 = 0x31  **~-~->**  means MOD=31, this message is a reply message for polling, this message contains the alarm settings. see [[this link>>||anchor="HPolltheAlarmsettings:"]] for detail. [[~>url:http:~~/~~/www.dragino.com/downloads/index.php?dir" data-cke-saved-href="#HPolltheAlarmsettings:" href="#HPolltheAlarmsettings:"~>this link>>||anchor="HPolltheAlarmsettings:" aria-label="Data URI image image widget" contenteditable="false" role="presentation" 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"]]
366
367
368 === 2.3.2  Payload Decoder file ===
369
370
371 (((
372 In **TTN**, use can add a custom payload so it shows friendly. 
373 )))
374
375 (((
376 In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from:
377 )))
378
379 (((
380 [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSN50v2-S31/Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSN50v2-D20/Decoder/]]
381 )))
382
383
384 (% 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"]](% 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"]](% 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" %)​(% 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"]](% 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"]](% 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" %)​
385
386 === 2.3.3  Historical Temperature and humidity of S31, FPORT~=3（Since firmware 1.8.0） ===
387
388
389 S31 stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.4A0DatalogFeature"]].
390
391 The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time water flow status.
392
393 * Each data entry is 11 bytes and has the same structure as real time water flow status, to save airtime and battery, S31 will send max bytes according to the current DR and Frequency bands.
394
395 For example, in the US915 band, the max payload for different DR is:
396
397 **a) DR0:** max is 11 bytes so one entry of data
398
399 **b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
400
401 **c) DR2:** total payload includes 11 entries of data
402
403 **d) DR3:** total payload includes 22 entries of data.
404
405 If S31 doesn't have any data in the polling time. It will uplink 11 bytes of 0
406
407 (% class="wikigeneratedid" id="H" %)
408 [[image:image-20230330140955-1.png]]
409
410 **Downlink:**
411
412 0x 31 64 22 5B 00 64 22 5D 58 05
413
414
415 **Uplink:**
416
417 00 00 00 00 E1 02 95 64 22 5B 37 00 00 00 00 E1 02 97 64 22 5B 74 00 00 00 00 E0 02 98 64 22 5B B0 00 00 00 00 E0 02 9C 64 22 5B EC 00 00 00 00 E0 02 9C 64 22 5C 28 00 00 00 00 DF 02 9D 64 22 5C 64 00 00 00 00 DF 02 9F 64 22 5C A0 00 00 00 00 DE 02 A0 64 22 5C DC 00 00 00 00 DE 02 A9 64 22 5D 18 00 00 00 00 DE 02 A4 64 22 5D 54
418
419
420 **Parsed Value:**
421
422 【Temperature, Humidity, Unix TimeStamp】
423
424 [22.5,66.1,2023-03-28 03:12:55],
425
426 [22.5,66.3,2023-03-28 03:13:56],
427
428 [22.4,66.4,2023-03-28 03:14:56],
429
430 [22.4,66.8,2023-03-28 03:15:56],
431
432 [22.4,66.8,2023-03-28 03:16:56],
433
434 [22.3,66.9,2023-03-28 03:17:56],
435
436 [22.3,67.1,2023-03-28 03:18:56]
437
438 [22.2,67.2,2023-03-28 03:19:56],
439
440 [22.2,68.1,2023-03-28 03:20:56],
441
442 [22.2,67.6,2023-03-28 03:21:56],
443
444
445 **Serial port**：
446
447 [[image:image-20230330141016-2.png]]
448
449
450 == 2.4 Datalog Feature ==
451
452 === 2.4.1 Unix TimeStamp ===
453
454
455 S31 uses Unix TimeStamp format based on
456
457 [[image:image-20230330141111-3.png]]
458
459 Users can get this time from the link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
460
461 Below is the converter example
462
463 [[image:image-20230330141111-4.png]]
464
465
466 === 2.4.2 Set Device Time ===
467
468
469 (% style="color:blue" %)**Through LoRaWAN MAC Command**
470
471 Once S31 Joined the LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to S31. If S31 fails to get the time from the server, S31 will use the internal time and wait for the next time request.
472
473
474 (% style="color:red" %)**Note: LoRaWAN Server needs to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature.**
475
476
477 === 2.4.3 Poll sensor value ===
478
479
480 Users can poll sensor values based on timestamps. Below is the downlink command.
481
482
483 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
484 |(((
485 **Downlink Command to poll Open/Close status (0x31)**
486 )))
487
488 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:390px" %)
489 |**1byte**|**4bytes**|**4bytes**|**1byte**
490 |31|Timestamp start|Timestamp end|Uplink Interval
491
492 Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
493
494 For example, downlink command[[image:image-20230330141111-5.png]]
495
496 Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
497
498 Uplink Internal =5s，means CPL01 will send one packet every 5s. range 5~~255s.
499
500
501 === 2.4.4 Clear Flash Record ===
502
503
504 Feature: Clear flash storage for data log feature.
505
506 **AT Command: (% style="color:#037691" %)AT+CLRDTA(%%)**
507
508 [[image:image-20230330141111-6.png]]
509
510
511 === 2.4.5  Set system time ===
512
513
514 Feature: Set system time, Unix format. [[See here for format detail.>>path:#H2.4.1A0UnixTimeStamp]]
515
516 **AT Command:**
517
518 [[image:image-20230330141111-7.png]]
519
520
521 **Downlink Command:**
522
523 0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
524
525
526 === 2.4.6  Set Time Sync Mode ===
527
528
529 Feature: Enable/Disable Sync system time via LoRaWAN MAC Command (DeviceTimeReq), LoRaWAN server must support v1.0.3 protocol to reply to this command.
530
531 (% style="color:blue" %)**SYNCMOD**(%%) is set to 1 by default. If user wants to set a different time from the LoRaWAN server, the user needs to set this to 0.
532
533 **AT Command:**
534
535 [[image:image-20230330141111-8.png]]
536
537
538 **Downlink Command:**
539
540 0x28 01  ~/~/ Same As AT+SYNCMOD=1
541
542 0x28 01 08  ~/~/ Same As AT+SYNCMOD=1,8
543
544 0x28 01 F4  ~/~/ Same As AT+SYNCMOD=1,-12
545
546 0x28 00  ~/~/ Same As AT+SYNCMOD=0
547
548
549 == 2.5  Temperature & Humidity Alarm Feature ==
550
551
552 LSN50V2-S31 work flow with Alarm feature.
553
554
555 [[image:1655972194041-948.png]]
556
557
558 (((
559 User can use (% style="color:#037691" %)** AT+SHTEMP **(%%)and (% style="color:#037691" %)** AT+SHHUM **(%%)command to set the alarm low limit or high limit. Device will check the temperature & Humidity every minute, if the temperature lower than low limit or greater than high limit. LSN50v2-S31 will send an (% style="color:#037691" %)** Alarm packet base on Confirmed Uplink Mode** (%%)to server.
560
561
562 Below is an example of the Alarm Packet.
563
564 [[image:image-20220623161735-10.png||height="514" width="1027"]]
565
566
567 )))
568
569 == 2.6  ​Configure LSN50v2-S31 ==
570
571
572 LSN50V2-S31 supports configuration via LoRaWAN downlink command or AT Commands.
573
574 * Downlink command instructions for different platform: [[Use Note for Server>>doc:Main.WebHome]](IoT LoRaWAN Server)
575 * AT Command Access Instructions:  [[LINK>>||anchor="H4.A0UseATCommand"]]
576
577 (((
578 There are two parts of commands: General one and Special for this model.
579 )))
580
581
582 === 2.6.1 General Configure Commands ===
583
584
585 These commands are to configure:
586
587 * General system settings like: uplink interval.
588 * LoRaWAN protocol & radio related command.
589
590 (((
591 These commands can be found on the wiki:  [[End Device AT Commands and Downlink Commands>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
592 )))
593
594
595 === 2.6.2 Sensor related commands ===
596
597
598
599 ==== (% style="color:red" %)**Set Temperature Alarm Threshold:**(%%) ====
600
601
602 * (% style="color:#037691" %)**AT Command:**
603
604 **AT+SHTEMP=min,max**
605
606 * When min=0, and max≠0, Alarm higher than max
607 * When min≠0, and max=0, Alarm lower than min
608 * When min≠0 and max≠0, Alarm higher than max or lower than min
609
610 Example:
611
612 AT+SHTEMP=0,30   ~/~/ Alarm when temperature higher than 30.
613
614
615 * (% style="color:#037691" %)**Downlink Payload:**
616
617 **0x(0C 01 00 1E)**  ~/~/Set AT+SHTEMP=0,30
618
619 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x00 for low limit(not set), 4^^th^^ byte = 0x1E for high limit: 30)**
620
621
622
623 ==== (% style="color:red" %)**Set Humidity Alarm Threshold:**(%%) ====
624
625
626 * (% style="color:#037691" %)**AT Command:**
627
628 **AT+SHHUM=min,max**
629
630 * When min=0, and max≠0, Alarm higher than max
631 * When min≠0, and max=0, Alarm lower than min
632 * When min≠0 and max≠0, Alarm higher than max or lower than min
633
634 Example:
635
636 AT+SHHUM=70,0   ~/~/ Alarm when humidity lower than 70%.
637
638
639 * (% style="color:#037691" %)**Downlink Payload:**
640
641 **0x(0C 02 46 00)**  ~/~/Set AT+SHTHUM=70,0
642
643 (% style="color:red" %)**(note: 3^^rd^^ byte= 0x46 for low limit (70%), 4^^th^^ byte = 0x00 for high limit (not set))**
644
645
646
647 ==== (% style="color:red" %)**Set Alarm Interval:**(%%) ====
648
649
650 The shortest time of two Alarm packet. (unit: min)
651
652 * (% style="color:#037691" %)**AT Command:**
653
654 **AT+ATDC=30**  ~/~/ The shortest interval of two Alarm packets is 30 minutes, Means is there is an alarm packet uplink, there won't be another one in the next 30 minutes.
655
656
657 * (% style="color:#037691" %)**Downlink Payload:**
658
659 **0x(0D 00 1E)**     **~-~--> ** Set AT+ATDC=0x 00 1E = 30 minutes
660
661
662
663 ==== (% style="color:red" %)**Poll the Alarm settings:**(%%) ====
664
665
666 Send a LoRaWAN downlink to ask device send Alarm settings.
667
668 * (% style="color:#037691" %)**Downlink Payload:**
669
670 0x0E 01
671
672
673 **Example:**
674
675 [[image:1655972693463-687.png]]
676
677 **Explain:**
678
679 * Alarm & MOD bit is 0x7C, 0x7C >> 2 = 0x31: Means this message is the Alarm settings message.
680
681
682
683 == 2.7  LED Status ==
684
685
686 LSN50-v2-S31 has an internal LED, it will active in below situation:
687
688 * LED will fast blink 5 times when boot, this means the temperature sensor is detected.
689 * After the fast blinks on boot, the LED will flash once which means device is trying to send Join Packet to the network.
690 * If device successful join LoRaWAN network, the LED will be solid on for 5 seconds.
691
692
693
694 == 2.8  Button Function ==
695
696
697 (((
698 **Internal RESET button:**
699 )))
700
701 (((
702 Press this button will reboot the device. Device will process OTAA Join to network again.
703 )))
704
705
706 == (% style="color:inherit; font-family:inherit; font-size:26px" %)2.9  ​Firmware Change Log(%%) ==
707
708
709 Firmware version and change log please see: [[**See this link**>>https://www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0]]**.**
710
711
712 = 3. Battery & Power Consumption =
713
714
715 LSN50v2-S31 uses ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
716
717 [[**Battery Info & Power Consumption Analyze**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
718
719
720 = 4.  Use AT Command =
721
722 == 4.1  Access AT Commands ==
723
724
725 User can use a USB to TTL adapter to connect to LSN50V2-S31 to use AT command to configure the device. Example is as below:
726
727
728 [[image:image-20220623095817-4.png||height="665" width="1032"]]
729
730 (% style="display:none" %) (%%)
731
732 [[image:image-20220623100044-7.png]]
733
734
735 = 5.  FAQ =
736
737 == 5.1 What is the frequency range of LSN50v2-S31? ==
738
739
740 Different LSN50V2-S31 version supports different frequency range, below is the table for the working frequency and recommend bands for each model:
741
742 [[image:image-20220623100350-8.png]]
743
744
745 == 5.2 What is the Frequency Plan? ==
746
747
748 Please refer Dragino End Node Frequency Plan:  [[End Device Frequency Band>>doc:Main.End Device Frequency Band.WebHome]]
749
750
751 == 5.3 How to update the firmware? ==
752
753
754 (((
755 User can upgrade the firmware for:
756 )))
757
758 * (((
759 (((
760 Support new features
761 )))
762 )))
763 * (((
764 (((
765 For bug fix
766 )))
767 )))
768 * (((
769 (((
770 Change LoRaWAN bands.
771 )))
772 )))
773
774 (((
775 Please see this link for how to upgrade: ** **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
776 )))
777
778
779 = 6.  Trouble Shooting =
780
781 == 6.1  AT Command input doesn't work ==
782
783
784 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:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
785
786
787 == 6.2 Abnormal temperature ==
788
789
790 When the temperature is displayed as - 0.1, it means that the sensor is not connected.
791
792 Please check whether the wiring is loose/Blocked by the insulation layer of the wire/pin damaged
793
794
795 = 7.  Order Info =
796
797
798 **Part Number:  ** (% style="color:blue" %)**LSN50V2-S31-XXX**(%%)**  Or  (% style="color:blue" %)LSN50V2-S31B-XXX (%%)**
799
800 (% style="color:blue" %)**XXX**(%%)**: **The default frequency band
801
802 * (% style="color:red" %)**AS923 **(%%)**:** LoRaWAN AS923 band
803 * (% style="color:red" %)**AU915 **(%%)**:** LoRaWAN AU915 band
804 * (% style="color:red" %)**EU433 **(%%)**:** LoRaWAN EU433 band
805 * (% style="color:red" %)**EU868 **(%%)**:** LoRaWAN EU868 band
806 * (% style="color:red" %)**KR920 **(%%)**:** LoRaWAN KR920 band
807 * (% style="color:red" %)**US915 **(%%)**:** LoRaWAN US915 band
808 * (% style="color:red" %)**IN865 **(%%)**:** LoRaWAN IN865 band
809 * (% style="color:red" %)**CN470 **(%%)**:** LoRaWAN CN470 band
810
811
812
813 = 8. ​ Packing Info =
814
815
816 (((
817 **Package Includes**:
818 )))
819
820 * (((
821 (% style="color:blue" %)**LSN50V2-S31**(%%) **or** (% style="color:blue" %)**LSN50V2-S31B**(%%) LoRaWAN Temperature Sensor x 1
822
823
824 )))
825
826 (((
827 **Dimension and weight**:
828 )))
829
830 * Device Size: cm
831 * Device Weight: g
832 * Package Size / pcs : cm
833 * Weight / pcs : g
834
835
836
837 = 9.  ​Support =
838
839
840 * 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.
841 * 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]].
842
843

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