Wiki source code of SN50v3-LB LoRaWAN Sensor Node User Manual

Version 74.7 by Xiaoling on 2023/09/26 08:52

version	line-number	content
41.2	1	(% style="text-align:center" %)
	2	[[image:image-20230515135611-1.jpeg\|\|height="589" width="589"]]
2.1	3
	4
	5
	6	Table of Contents：
	7
	8	{{toc/}}
	9
	10
	11
	12
	13
	14
	15	= 1. Introduction =
	16
5.1	17	== 1.1 What is SN50v3-LB LoRaWAN Generic Node ==
2.1	18
43.2	19
4.1	20	(% style="color:blue" %)SN50V3-LB (%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %) 8500mA Li/SOCl2 battery(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help 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.
2.1	21
74.7	22	(% style="color:blue" %)SN50V3-LB wireless part(%%) is based on SX1262 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 minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, and so on.
2.1	23
4.1	24	(% style="color:blue" %)SN50V3-LB (%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors.
2.1	25
4.1	26	(% style="color:blue" %)SN50V3-LB(%%) has a built-in BLE module, user can configure the sensor remotely via Mobile Phone. It also support OTA upgrade via private LoRa protocol for easy maintaining.
2.1	27
4.1	28	SN50V3-LB is the 3^^rd^^ generation of LSN50 series generic sensor node from Dragino. It is an (% style="color:blue" %)open source project(%%) and has a mature LoRaWAN stack and application software. User can use the pre-load software for their IoT projects or easily customize the software for different requirements.
2.1	29
	30	== 1.2 Features ==
	31
43.44	32
2.1	33	* LoRaWAN 1.0.3 Class A
	34	* Ultra-low power consumption
5.1	35	* Open-Source hardware/software
2.1	36	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	37	* Support Bluetooth v5.1 and LoRaWAN remote configure
	38	* Support wireless OTA update firmware
	39	* Uplink on periodically
	40	* Downlink to change configure
	41	* 8500mAh Battery for long term use
	42
	43	== 1.3 Specification ==
	44
43.4	45
2.1	46	(% style="color:#037691" %)Common DC Characteristics:
	47
	48	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	49	* Operating Temperature: -40 ~~ 85°C
	50
5.1	51	(% style="color:#037691" %)I/O Interface:
2.1	52
5.1	53	* Battery output (2.6v ~~ 3.6v depends on battery)
	54	* +5v controllable output
	55	* 3 x Interrupt or Digital IN/OUT pins
	56	* 3 x one-wire interfaces
	57	* 1 x UART Interface
	58	* 1 x I2C Interface
2.1	59
	60	(% style="color:#037691" %)LoRa Spec:
	61
	62	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	63	* Max +22 dBm constant RF output vs.
	64	* RX sensitivity: down to -139 dBm.
	65	* Excellent blocking immunity
	66
	67	(% style="color:#037691" %)Battery:
	68
	69	* Li/SOCI2 un-chargeable battery
	70	* Capacity: 8500mAh
	71	* Self-Discharge: <1% / Year @ 25°C
	72	* Max continuously current: 130mA
	73	* Max boost current: 2A, 1 second
	74
	75	(% style="color:#037691" %)Power Consumption
	76
	77	* Sleep Mode: 5uA @ 3.3v
	78	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	79
	80	== 1.4 Sleep mode and working mode ==
	81
43.4	82
2.1	83	(% style="color:blue" %)Deep Sleep Mode: (%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
	84
	85	(% style="color:blue" %)Working Mode: (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
	86
	87
	88	== 1.5 Button & LEDs ==
	89
	90
	91	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	92
	93
	94	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	95	\|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)Behavior on ACT\|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)Action
	96	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	97	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	98	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	99	)))
	100	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	101	(% style="color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
	102	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	103	Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
	104	)))
	105	\|(% style="width:167px" %)Fast press ACT 5 times.\|(% style="width:117px" %)Deactivate Device\|(% style="width:225px" %)(% style="color:red" %)Red led(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
	106
	107	== 1.6 BLE connection ==
	108
	109
5.1	110	SN50v3-LB supports BLE remote configure.
2.1	111
	112
	113	BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
	114
	115	* Press button to send an uplink
	116	* Press button to active device.
	117	* Device Power on or reset.
	118
	119	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	120
	121
6.1	122	== 1.7 Pin Definitions ==
2.1	123
	124
49.1	125	[[image:image-20230610163213-1.png\|\|height="404" width="699"]]
2.1	126
	127
	128	== 1.8 Mechanical ==
	129
	130
	131	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	132
	133	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	134
	135	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	136
	137
44.5	138	== 1.9 Hole Option ==
5.1	139
43.4	140
5.1	141	SN50v3-LB has different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below:
	142
	143	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627104757-1.png?rev=1.1\|\|alt="image-20220627104757-1.png"]]
	144
	145	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656298089706-973.png?rev=1.1\|\|alt="1656298089706-973.png"]]
	146
	147
10.1	148	= 2. Configure SN50v3-LB to connect to LoRaWAN network =
2.1	149
	150	== 2.1 How it works ==
	151
	152
44.3	153	The SN50v3-LB is configured as (% style="color:#037691" %)LoRaWAN OTAA Class A(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the SN50v3-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
2.1	154
	155
	156	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	157
	158
	159	Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
	160
44.3	161	The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
2.1	162
	163
11.2	164	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.
2.1	165
11.2	166	Each SN50v3-LB is shipped with a sticker with the default device EUI as below:
2.1	167
11.2	168	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-LB_S31B-LB/WebHome/image-20230426084152-1.png?width=502&height=233&rev=1.1\|\|alt="图片-20230426084152-1.png" height="233" width="502"]]
2.1	169
	170
	171	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	172
	173
	174	(% style="color:blue" %)Register the device
	175
	176	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1\|\|alt="1654935135620-998.png"]]
	177
	178
	179	(% style="color:blue" %)Add APP EUI and DEV EUI
	180
	181	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1\|\|alt="图片-20220611161308-4.png"]]
	182
	183
	184	(% style="color:blue" %)Add APP EUI in the application
	185
	186
	187	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1\|\|alt="图片-20220611161308-5.png"]]
	188
	189
	190	(% style="color:blue" %)Add APP KEY
	191
	192	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1\|\|alt="图片-20220611161308-6.png"]]
	193
	194
11.2	195	(% style="color:blue" %)Step 2:(%%) Activate SN50v3-LB
2.1	196
	197
11.2	198	Press the button for 5 seconds to activate the SN50v3-LB.
2.1	199
	200	(% style="color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:blue" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	201
	202	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	203
	204
	205	== 2.3 Uplink Payload ==
	206
	207	=== 2.3.1 Device Status, FPORT~=5 ===
	208
	209
44.3	210	Users can use the downlink command(0x26 01) to ask SN50v3-LB to send device configure detail, include device configure status. SN50v3-LB will uplink a payload via FPort=5 to server.
2.1	211
	212	The Payload format is as below.
	213
	214
	215	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	216	\|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)Device Status (FPORT=5)
	217	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
45.4	218	\|(% style="width:103px" %)Value\|(% style="width:72px" %)Sensor Model\|Firmware Version\|(% style="width:91px" %)Frequency Band\|(% style="width:86px" %)Sub-band\|(% style="width:44px" %)BAT
2.1	219
	220	Example parse in TTNv3
	221
	222
44.3	223	(% style="color:#037691" %)Sensor Model(%%): For SN50v3-LB, this value is 0x1C
2.1	224
	225	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
	226
	227	(% style="color:#037691" %)Frequency Band:
	228
53.2	229	0x01: EU868
2.1	230
53.2	231	0x02: US915
2.1	232
53.2	233	0x03: IN865
2.1	234
53.2	235	0x04: AU915
2.1	236
53.2	237	0x05: KZ865
2.1	238
53.2	239	0x06: RU864
2.1	240
53.2	241	0x07: AS923
2.1	242
53.2	243	0x08: AS923-1
2.1	244
53.2	245	0x09: AS923-2
2.1	246
53.2	247	0x0a: AS923-3
2.1	248
53.2	249	0x0b: CN470
2.1	250
53.2	251	0x0c: EU433
2.1	252
53.2	253	0x0d: KR920
2.1	254
53.2	255	0x0e: MA869
2.1	256
	257
	258	(% style="color:#037691" %)Sub-Band:
	259
	260	AU915 and US915:value 0x00 ~~ 0x08
	261
	262	CN470: value 0x0B ~~ 0x0C
	263
	264	Other Bands: Always 0x00
	265
	266
	267	(% style="color:#037691" %)Battery Info:
	268
	269	Check the battery voltage.
	270
	271	Ex1: 0x0B45 = 2885mV
	272
	273	Ex2: 0x0B49 = 2889mV
	274
	275
12.1	276	=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===
2.1	277
	278
44.2	279	SN50v3-LB has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command (% style="color:blue" %)AT+MOD(%%) to set SN50v3-LB to different working modes.
12.1	280
	281	For example:
	282
44.2	283	(% style="color:blue" %)AT+MOD=2 (%%) ~/~/ will set the SN50v3 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
12.1	284
	285
13.1	286	(% style="color:red" %) Important Notice:
12.1	287
44.3	288	~1. Some working modes has payload more than 12 bytes, The US915/AU915/AS923 frequency bands' definition has maximum 11 bytes in (% style="color:blue" %)DR0(%%). Server sides will see NULL payload while SN50v3-LB transmit in DR0 with 12 bytes payload.
12.1	289
44.2	290	2. All modes share the same Payload Explanation from HERE.
43.53	291
44.2	292	3. By default, the device will send an uplink message every 20 minutes.
	293
	294
13.1	295	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	296
43.5	297
12.1	298	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	299
43.5	300	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	301	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:130px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)2
45.4	302	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	303	Temperature(DS18B20)(PC13)
40.1	304	)))\|(% style="width:78px" %)(((
43.12	305	ADC(PA4)
26.2	306	)))\|(% style="width:216px" %)(((
43.13	307	Digital in(PB15)&Digital Interrupt(PA8)
40.1	308	)))\|(% style="width:308px" %)(((
43.12	309	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	310	)))\|(% style="width:154px" %)(((
43.12	311	Humidity(SHT20 or SHT31)
36.1	312	)))
	313
12.1	314	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627150949-6.png?rev=1.1\|\|alt="image-20220627150949-6.png"]]
	315
	316
13.1	317	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	318
43.45	319
12.1	320	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.
	321
43.14	322	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	323	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)2
45.4	324	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	325	Temperature(DS18B20)(PC13)
40.1	326	)))\|(% style="width:87px" %)(((
43.16	327	ADC(PA4)
40.1	328	)))\|(% style="width:189px" %)(((
43.16	329	Digital in(PB15) & Digital Interrupt(PA8)
40.1	330	)))\|(% style="width:208px" %)(((
53.2	331	Distance measure by: 1) LIDAR-Lite V3HP
	332	Or 2) Ultrasonic Sensor
40.1	333	)))\|(% style="width:117px" %)Reserved
12.1	334
	335	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656324539647-568.png?rev=1.1\|\|alt="1656324539647-568.png"]]
	336
43.45	337
43.17	338	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	339
26.2	340	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	341
43.45	342
43.17	343	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	344
44.1	345	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	346
26.2	347	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	348
43.45	349
12.1	350	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	351
43.19	352	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	353	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:120px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)2
45.5	354	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	355	Temperature(DS18B20)(PC13)
40.1	356	)))\|(% style="width:173px" %)(((
43.19	357	Digital in(PB15) & Digital Interrupt(PA8)
40.1	358	)))\|(% style="width:84px" %)(((
43.19	359	ADC(PA4)
40.1	360	)))\|(% style="width:323px" %)(((
12.1	361	Distance measure by:1)TF-Mini plus LiDAR
53.3	362	Or 2) TF-Luna LiDAR
40.1	363	)))\|(% style="width:188px" %)Distance signal strength
12.1	364
	365	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656376779088-686.png?rev=1.1\|\|alt="1656376779088-686.png"]]
	366
43.45	367
12.1	368	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	369
44.1	370	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	371
26.2	372	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	373
43.45	374
12.1	375	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	376
44.1	377	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	378
52.1	379	[[image:image-20230610170047-1.png\|\|height="452" width="799"]]
12.1	380
	381
13.1	382	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	383
43.45	384
12.1	385	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	386
43.21	387	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	388	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	389	Size(bytes)
43.54	390	)))\|=(% style="width: 50px;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: 110px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)1
45.4	391	\|Value\|(% style="width:68px" %)(((
43.23	392	ADC1(PA4)
26.2	393	)))\|(% style="width:75px" %)(((
43.23	394	ADC2(PA5)
36.1	395	)))\|(((
43.23	396	ADC3(PA8)
36.1	397	)))\|(((
	398	Digital Interrupt(PB15)
	399	)))\|(% style="width:304px" %)(((
43.23	400	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	401	)))\|(% style="width:163px" %)(((
43.23	402	Humidity(SHT20 or SHT31)
36.1	403	)))\|(% style="width:53px" %)Bat
	404
	405	[[image:image-20230513110214-6.png]]
	406
	407
13.1	408	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	409
12.1	410
26.2	411	This mode has total 11 bytes. As shown below:
12.1	412
43.26	413	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	414	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2
45.4	415	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	416	Temperature1(DS18B20)(PC13)
26.2	417	)))\|(% style="width:82px" %)(((
43.27	418	ADC(PA4)
26.2	419	)))\|(% style="width:210px" %)(((
43.27	420	Digital in(PB15) & Digital Interrupt(PA8)
26.2	421	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	422	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	423
	424	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656377606181-607.png?rev=1.1\|\|alt="1656377606181-607.png"]]
	425
44.4	426
39.2	427	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	428
39.1	429
13.1	430	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	431
43.45	432
26.2	433	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	434
	435	Each HX711 need to be calibrated before used. User need to do below two steps:
	436
44.2	437	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)AT+WEIGRE(%%) to calibrate to Zero gram.
	438	1. Adjust calibration factor (default value 400): Put a known weight thing on load cell and run (% style="color:blue" %)AT+WEIGAP(%%) to adjust the Calibration Factor.
12.1	439	1. (((
26.2	440	Weight has 4 bytes, the unit is g.
43.53	441
	442
	443
12.1	444	)))
	445
	446	For example:
	447
44.2	448	(% style="color:blue" %)AT+GETSENSORVALUE =0
12.1	449
	450	Response: Weight is 401 g
	451
	452	Check the response of this command and adjust the value to match the real value for thing.
	453
43.29	454	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	455	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	456	Size(bytes)
43.30	457	)))\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 150px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 200px;background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)4
45.4	458	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	459	Temperature(DS18B20)(PC13)
40.1	460	)))\|(% style="width:85px" %)(((
43.31	461	ADC(PA4)
40.1	462	)))\|(% style="width:186px" %)(((
43.55	463	Digital in(PB15) & Digital Interrupt(PA8)
40.1	464	)))\|(% style="width:100px" %)Weight
26.2	465
12.1	466	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220820120036-2.png?width=1003&height=469&rev=1.1\|\|alt="image-20220820120036-2.png" height="469" width="1003"]]
	467
	468
13.1	469	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	470
43.45	471
12.1	472	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.
	473
	474	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.
	475
26.2	476	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	477
43.53	478
43.45	479	(% 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 SN50_v3 to avoid this happen.
12.1	480
43.38	481	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	482	\|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)Size(bytes)\|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 180px;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: 80px;background-color:#D9E2F3;color:#0070C0" %)4
45.4	483	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	484	Temperature(DS18B20)(PC13)
36.1	485	)))\|(% style="width:108px" %)(((
43.31	486	ADC(PA4)
36.1	487	)))\|(% style="width:126px" %)(((
43.31	488	Digital in(PB15)
36.1	489	)))\|(% style="width:145px" %)(((
43.31	490	Count(PA8)
36.1	491	)))
	492
12.1	493	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656378441509-171.png?rev=1.1\|\|alt="1656378441509-171.png"]]
	494
	495
13.1	496	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	497
43.45	498
43.38	499	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	500	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	501	Size(bytes)
43.34	502	)))\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 90px;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" %)1\|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)2
45.4	503	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	504	Temperature(DS18B20)
	505	(PC13)
40.1	506	)))\|(% style="width:83px" %)(((
43.35	507	ADC(PA5)
40.1	508	)))\|(% style="width:184px" %)(((
36.1	509	Digital Interrupt1(PA8)
40.1	510	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	511
	512	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	513
43.45	514
13.1	515	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	516
43.45	517
43.38	518	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	519	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	520	Size(bytes)
43.55	521	)))\|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 110px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)2
45.4	522	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	523	Temperature(DS18B20)
	524	(PC13)
	525	)))\|(% style="width:94px" %)(((
43.36	526	ADC1(PA4)
36.1	527	)))\|(% style="width:198px" %)(((
	528	Digital Interrupt(PB15)
	529	)))\|(% style="width:84px" %)(((
43.36	530	ADC2(PA5)
40.1	531	)))\|(% style="width:82px" %)(((
43.36	532	ADC3(PA8)
12.1	533	)))
	534
36.1	535	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	536
	537
13.1	538	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	539
43.45	540
43.38	541	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	542	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	543	Size(bytes)
43.56	544	)))\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4\|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4
45.4	545	\|Value\|BAT\|(((
43.58	546	Temperature
	547	(DS18B20)(PC13)
12.1	548	)))\|(((
43.58	549	Temperature2
	550	(DS18B20)(PB9)
12.1	551	)))\|(((
36.1	552	Digital Interrupt
	553	(PB15)
	554	)))\|(% style="width:193px" %)(((
43.58	555	Temperature3
	556	(DS18B20)(PB8)
36.1	557	)))\|(% style="width:78px" %)(((
43.39	558	Count1(PA8)
36.1	559	)))\|(% style="width:78px" %)(((
43.39	560	Count2(PA4)
12.1	561	)))
	562
36.1	563	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	564
43.40	565	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	566
43.44	567	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	568
43.44	569	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	570
43.44	571	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	572
	573
43.41	574	(% style="color:blue" %)AT+SETCNT=aa,bb
	575
36.1	576	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	577
36.1	578	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	579
	580
65.1	581	==== 2.3.2.10 MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
	582
74.3	583
65.1	584	In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
	585
74.3	586	[[It should be noted when using PWM mode.>>\|\|anchor="H2.3.3.12A0PWMMOD"]]
65.1	587
69.1	588
65.1	589	===== 2.3.2.10.a Uplink, PWM input capture =====
	590
74.3	591
65.1	592	[[image:image-20230817172209-2.png\|\|height="439" width="683"]]
	593
	594	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
	595	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:135px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:89px" %)2
	596	\|Value\|Bat\|(% style="width:191px" %)(((
	597	Temperature(DS18B20)(PC13)
	598	)))\|(% style="width:78px" %)(((
	599	ADC(PA4)
	600	)))\|(% style="width:135px" %)(((
	601	PWM_Setting
	602
	603	&Digital Interrupt(PA8)
	604	)))\|(% style="width:70px" %)(((
	605	Pulse period
	606	)))\|(% style="width:89px" %)(((
	607	Duration of high level
	608	)))
	609
	610	[[image:image-20230817170702-1.png\|\|height="161" width="1044"]]
	611
	612
72.1	613	When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
65.1	614
74.4	615	Frequency：
65.1	616
72.1	617	(% class="MsoNormal" %)
74.4	618	(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)AT+PWMSET(%%)=0, (% lang="EN-US" %)Frequency= 1000000/(%%)Pulse period（HZ）;
65.1	619
72.1	620	(% class="MsoNormal" %)
74.4	621	(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)AT+PWMSET(%%)=1, (% lang="EN-US" %)Frequency= 1000/(%%)Pulse period（HZ）;
72.1	622
74.4	623
72.1	624	(% class="MsoNormal" %)
74.4	625	Duty cycle:
72.1	626
	627	Duty cycle= Duration of high level/ Pulse period*100 ~(%).
	628
	629	[[image:image-20230818092200-1.png\|\|height="344" width="627"]]
	630
	631
65.1	632	===== 2.3.2.10.b Downlink, PWM output =====
	633
74.3	634
65.1	635	[[image:image-20230817173800-3.png\|\|height="412" width="685"]]
	636
	637	Downlink: (% style="color:#037691" %)0B xx xx xx yy zz zz
	638
	639	xx xx xx is the output frequency, the unit is HZ.
	640
	641	yy is the duty cycle of the output, the unit is %.
	642
	643	zz zz is the time delay of the output, the unit is ms.
	644
	645
	646	For example, send a downlink command: 0B 00 61 A8 32 13 88, the frequency is 25KHZ, the duty cycle is 50, and the output time is 5 seconds.
	647
	648	The oscilloscope displays as follows:
	649
	650	[[image:image-20230817173858-5.png\|\|height="694" width="921"]]
	651
	652
14.1	653	=== 2.3.3 Decode payload ===
	654
43.45	655
12.1	656	While using TTN V3 network, you can add the payload format to decode the payload.
	657
	658	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656378466788-734.png?rev=1.1\|\|alt="1656378466788-734.png"]]
	659
	660	The payload decoder function for TTN V3 are here:
	661
44.2	662	SN50v3-LB TTN V3 Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
12.1	663
	664
14.1	665	==== 2.3.3.1 Battery Info ====
2.1	666
43.45	667
44.2	668	Check the battery voltage for SN50v3-LB.
2.1	669
	670	Ex1: 0x0B45 = 2885mV
	671
	672	Ex2: 0x0B49 = 2889mV
	673
	674
14.1	675	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	676
43.45	677
42.1	678	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	679
43.45	680	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	681
43.41	682	(% style="color:blue" %)Connection:
14.1	683
26.2	684	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	685
43.46	686
43.41	687	(% style="color:blue" %)Example:
2.1	688
	689	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	690
	691	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	692
	693	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	694
	695
14.1	696	==== 2.3.3.3 Digital Input ====
2.1	697
43.46	698
26.2	699	The digital input for pin PB15,
2.1	700
26.2	701	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	702	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	703
26.2	704	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	705	(((
36.1	706	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	707
43.46	708	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	709
	710
26.2	711	)))
	712
14.1	713	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	714
43.46	715
53.1	716	The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
2.1	717
53.1	718	When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
14.1	719
26.2	720	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220628150112-1.png?width=285&height=241&rev=1.1\|\|alt="image-20220628150112-1.png" height="241" width="285"]]
14.1	721
44.2	722
43.46	723	(% style="color:red" %)Note: If the ADC type sensor needs to be powered by SN50_v3, it is recommended to use +5V to control its switch.Only sensors with low power consumption can be powered with VDD.
14.1	724
43.1	725
59.1	726	The position of PA5 on the hardware after LSN50 v3.3 is changed to the position shown in the figure below, and the collected voltage becomes one-sixth of the original.
	727
	728	[[image:image-20230811113449-1.png\|\|height="370" width="608"]]
	729
14.1	730	==== 2.3.3.5 Digital Interrupt ====
	731
43.46	732
44.2	733	Digital Interrupt refers to pin PA8, and there are different trigger methods. When there is a trigger, the SN50v3-LB will send a packet to the server.
14.1	734
43.44	735	(% style="color:blue" %) Interrupt connection method:
14.1	736
36.1	737	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	738
43.46	739
43.8	740	(% style="color:blue" %)Example to use with door sensor :
14.1	741
	742	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.
	743
	744	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656379210849-860.png?rev=1.1\|\|alt="1656379210849-860.png"]]
	745
44.2	746	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 SN50v3-LB interrupt interface to detect the status for the door or window.
14.1	747
	748
43.46	749	(% style="color:blue" %)Below is the installation example:
	750
44.2	751	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	752
	753	* (((
44.2	754	One pin to SN50v3-LB's PA8 pin
14.1	755	)))
	756	* (((
44.2	757	The other pin to SN50v3-LB's VDD pin
14.1	758	)))
	759
36.1	760	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 PA8 will be at the VCC voltage.
14.1	761
43.46	762	Door sensors have two types: (% style="color:blue" %) NC (Normal close)(%%) and (% style="color:blue" %)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.
14.1	763
36.1	764	When door sensor is shorted, there will extra power consumption in the circuit, the extra current is 3v3/R14 = 3v3/1Mohm = 3uA which can be ignored.
14.1	765
	766	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656379283019-229.png?rev=1.1\|\|alt="1656379283019-229.png"]]
	767
	768	The above photos shows the two parts of the magnetic switch fitted to a door.
	769
	770	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.
	771
	772	The command is:
	773
44.2	774	(% style="color:blue" %)AT+INTMOD1=1 (%%) ~/~/ (more info about INMOD please refer [[AT Command Manual>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/&file=DRAGINO_LSN50_AT_Commands_v1.5.1.pdf]]. )
14.1	775
	776	Below shows some screen captures in TTN V3:
	777
	778	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656379339508-835.png?rev=1.1\|\|alt="1656379339508-835.png"]]
	779
43.47	780
44.4	781	In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
14.1	782
	783	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	784
	785
26.2	786	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	787
43.47	788
26.2	789	The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.
14.1	790
40.1	791	We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor.
14.1	792
44.2	793	(% style="color:red" %)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/ SHT31 code in SN50v3-LB will be a good reference.
14.1	794
44.2	795
14.1	796	Below is the connection to SHT20/ SHT31. The connection is as below:
	797
52.1	798	[[image:image-20230610170152-2.png\|\|height="501" width="846"]]
36.1	799
44.4	800
14.1	801	The device will be able to get the I2C sensor data now and upload to IoT Server.
	802
	803	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656379664142-345.png?rev=1.1\|\|alt="1656379664142-345.png"]]
	804
	805	Convert the read byte to decimal and divide it by ten.
	806
2.1	807	Example:
	808
14.1	809	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	810
14.1	811	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	812
14.1	813	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	814
	815
14.1	816	==== 2.3.3.7 Distance Reading ====
2.1	817
43.48	818
43.42	819	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	820
	821
	822	==== 2.3.3.8 Ultrasonic Sensor ====
	823
43.48	824
26.2	825	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]]
14.1	826
44.2	827	The SN50v3-LB 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.
14.1	828
43.44	829	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	830
14.1	831	The picture below shows the connection:
	832
36.1	833	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	834
43.50	835
44.2	836	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	837
	838	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	839
	840	Example:
	841
	842	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	843
	844
	845	==== 2.3.3.9 Battery Output - BAT pin ====
	846
43.50	847
44.4	848	The BAT pin of SN50v3-LB is connected to the Battery directly. If users want to use BAT pin to power an external sensor. User need to make sure the external sensor is of low power consumption. Because the BAT pin is always open. If the external sensor is of high power consumption. the battery of SN50v3-LB will run out very soon.
14.1	849
	850
	851	==== 2.3.3.10 +5V Output ====
	852
43.50	853
44.2	854	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	855
	856	The 5V output time can be controlled by AT Command.
	857
43.9	858	(% style="color:blue" %)AT+5VT=1000
14.1	859
	860	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	861
44.4	862	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.
14.1	863
	864
	865	==== 2.3.3.11 BH1750 Illumination Sensor ====
	866
43.50	867
14.1	868	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	869
40.1	870	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	871
43.51	872
40.1	873	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220628110012-12.png?rev=1.1\|\|alt="image-20220628110012-12.png" height="361" width="953"]]
14.1	874
	875
65.1	876	==== 2.3.3.12 PWM MOD ====
14.1	877
43.51	878
69.1	879	* (((
	880	The maximum voltage that the SDA pin of SN50v3 can withstand is 3.6V, and it cannot exceed this voltage value, otherwise the chip may be burned.
	881	)))
	882	* (((
	883	If the PWM pin connected to the SDA pin cannot maintain a high level when it is not working, you need to remove the resistor R2 or replace it with a resistor with a larger resistance, otherwise a sleep current of about 360uA will be generated. The position of the resistor is shown in the figure below:
	884	)))
	885
	886	[[image:image-20230817183249-3.png\|\|height="320" width="417"]]
	887
	888	* (((
	889	The signal captured by the input should preferably be processed by hardware filtering and then connected in. The software processing method is to capture four values, discard the first captured value, and then take the middle value of the second, third, and fourth captured values.
	890	)))
	891	* (((
74.2	892	Since the device can only detect a pulse period of 50ms when [[AT+PWMSET=0>>\|\|anchor="H3.3.8PWMsetting"]] (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
70.1	893
74.5	894
70.1	895
69.1	896	)))
	897
65.1	898	==== 2.3.3.13 Working MOD ====
	899
	900
14.1	901	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	902
	903	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	904
	905	Case 7^^th^^ Byte >> 2 & 0x1f:
	906
	907	* 0: MOD1
	908	* 1: MOD2
	909	* 2: MOD3
	910	* 3: MOD4
	911	* 4: MOD5
	912	* 5: MOD6
36.1	913	* 6: MOD7
	914	* 7: MOD8
	915	* 8: MOD9
65.1	916	* 9: MOD10
14.1	917
2.1	918	== 2.4 Payload Decoder file ==
	919
	920
	921	In TTN, use can add a custom payload so it shows friendly reading
	922
	923	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	924
40.1	925	[[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/SN50_v3-LB>>https://github.com/dragino/dragino-end-node-decoder/tree/main/SN50_v3-LB]]
2.1	926
	927
15.1	928	== 2.5 Frequency Plans ==
2.1	929
	930
15.1	931	The SN50v3-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
2.1	932
	933	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	934
	935
16.1	936	= 3. Configure SN50v3-LB =
2.1	937
	938	== 3.1 Configure Methods ==
	939
	940
16.1	941	SN50v3-LB supports below configure method:
2.1	942
	943	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	944	* AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
	945	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	946
	947	== 3.2 General Commands ==
	948
	949
	950	These commands are to configure:
	951
	952	* General system settings like: uplink interval.
	953	* LoRaWAN protocol & radio related command.
	954
	955	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	956
	957	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
	958
	959
16.1	960	== 3.3 Commands special design for SN50v3-LB ==
2.1	961
	962
44.2	963	These commands only valid for SN50v3-LB, as below:
2.1	964
	965
	966	=== 3.3.1 Set Transmit Interval Time ===
	967
43.51	968
2.1	969	Feature: Change LoRaWAN End Node Transmit Interval.
	970
	971	(% style="color:blue" %)AT Command: AT+TDC
	972
	973	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	974	\|=(% style="width: 156px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 137px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="background-color:#D9E2F3;color:#0070C0" %)Response
2.1	975	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	976	30000
	977	OK
	978	the interval is 30000ms = 30s
	979	)))
	980	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	981	OK
	982	Set transmit interval to 60000ms = 60 seconds
	983	)))
	984
	985	(% style="color:blue" %)Downlink Command: 0x01
	986
	987	Format: Command Code (0x01) followed by 3 bytes time value.
	988
	989	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	990
	991	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	992	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	993
	994	=== 3.3.2 Get Device Status ===
	995
43.52	996
40.1	997	Send a LoRaWAN downlink to ask the device to send its status.
2.1	998
44.4	999	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	1000
44.4	1001	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	1002
	1003
36.1	1004	=== 3.3.3 Set Interrupt Mode ===
2.1	1005
43.52	1006
2.1	1007	Feature, Set Interrupt mode for GPIO_EXIT.
	1008
36.1	1009	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	1010
	1011	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1012	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	1013	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	1014	0
	1015	OK
	1016	the mode is 0 =Disable Interrupt
	1017	)))
36.1	1018	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	1019	Set Transmit Interval
	1020	0. (Disable Interrupt),
	1021	~1. (Trigger by rising and falling edge)
	1022	2. (Trigger by falling edge)
	1023	3. (Trigger by rising edge)
	1024	)))\|(% style="width:157px" %)OK
36.1	1025	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	1026	Set Transmit Interval
	1027	trigger by rising edge.
	1028	)))\|(% style="width:157px" %)OK
	1029	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	1030
2.1	1031	(% style="color:blue" %)Downlink Command: 0x06
	1032
	1033	Format: Command Code (0x06) followed by 3 bytes.
	1034
	1035	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1036
36.1	1037	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	1038	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	1039	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	1040	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	1041
36.1	1042	=== 3.3.4 Set Power Output Duration ===
	1043
43.52	1044
36.1	1045	Control the output duration 5V . Before each sampling, device will
	1046
	1047	~1. first enable the power output to external sensor,
	1048
	1049	2. keep it on as per duration, read sensor value and construct uplink payload
	1050
	1051	3. final, close the power output.
	1052
	1053	(% style="color:blue" %)AT Command: AT+5VT
	1054
	1055	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1056	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	1057	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	1058	500(default)
	1059	OK
	1060	)))
	1061	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	1062	Close after a delay of 1000 milliseconds.
	1063	)))\|(% style="width:157px" %)OK
	1064
	1065	(% style="color:blue" %)Downlink Command: 0x07
	1066
	1067	Format: Command Code (0x07) followed by 2 bytes.
	1068
	1069	The first and second bytes are the time to turn on.
	1070
40.1	1071	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	1072	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	1073
	1074	=== 3.3.5 Set Weighing parameters ===
	1075
43.52	1076
37.1	1077	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	1078
	1079	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	1080
	1081	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1082	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
37.1	1083	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	1084	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	1085	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	1086
	1087	(% style="color:blue" %)Downlink Command: 0x08
	1088
37.1	1089	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1090
37.1	1091	Use AT+WEIGRE when the first byte is 1, only 1 byte. When it is 2, use AT+WEIGAP, there are 3 bytes.
36.1	1092
37.1	1093	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1094
37.1	1095	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1096	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1097	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1098
36.1	1099	=== 3.3.6 Set Digital pulse count value ===
	1100
43.52	1101
36.1	1102	Feature: Set the pulse count value.
	1103
37.1	1104	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1105
36.1	1106	(% style="color:blue" %)AT Command: AT+SETCNT
	1107
	1108	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1109	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	1110	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1111	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1112
	1113	(% style="color:blue" %)Downlink Command: 0x09
	1114
	1115	Format: Command Code (0x09) followed by 5 bytes.
	1116
	1117	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1118
	1119	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1120	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1121
	1122	=== 3.3.7 Set Workmode ===
	1123
43.52	1124
37.1	1125	Feature: Switch working mode.
36.1	1126
	1127	(% style="color:blue" %)AT Command: AT+MOD
	1128
	1129	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1130	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	1131	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1132	OK
	1133	)))
	1134	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1135	OK
	1136	Attention:Take effect after ATZ
	1137	)))
	1138
	1139	(% style="color:blue" %)Downlink Command: 0x0A
	1140
	1141	Format: Command Code (0x0A) followed by 1 bytes.
	1142
	1143	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1144	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1145
72.1	1146	=== 3.3.8 PWM setting ===
	1147
74.5	1148
72.1	1149	Feature: Set the time acquisition unit for PWM input capture.
	1150
	1151	(% style="color:blue" %)AT Command: AT+PWMSET
	1152
	1153	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1154	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
	1155	\|(% style="width:154px" %)AT+PWMSET=?\|(% style="width:196px" %)0\|(% style="width:157px" %)(((
	1156	0(default)
	1157
	1158	OK
	1159	)))
	1160	\|(% style="width:154px" %)AT+PWMSET=0\|(% style="width:196px" %)The unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ. \|(% style="width:157px" %)(((
	1161	OK
	1162
	1163	)))
	1164	\|(% style="width:154px" %)AT+PWMSET=1\|(% style="width:196px" %)The unit of PWM capture time is millisecond. The capture frequency range is between 5HZ and 250HZ. \|(% style="width:157px" %)OK
	1165
	1166	(% style="color:blue" %)Downlink Command: 0x0C
	1167
	1168	Format: Command Code (0x0C) followed by 1 bytes.
	1169
	1170	* Example 1: Downlink Payload: 0C00 ~-~--> AT+PWMSET=0
	1171	* Example 2: Downlink Payload: 0C01 ~-~--> AT+PWMSET=1
	1172
2.1	1173	= 4. Battery & Power Consumption =
	1174
	1175
11.1	1176	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1177
	1178	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1179
	1180
	1181	= 5. OTA Firmware update =
	1182
	1183
	1184	(% class="wikigeneratedid" %)
44.4	1185	User can change firmware SN50v3-LB to:
2.1	1186
	1187	* Change Frequency band/ region.
	1188	* Update with new features.
	1189	* Fix bugs.
	1190
52.2	1191	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1192
44.4	1193	Methods to Update Firmware:
2.1	1194
53.3	1195	* (Recommanded way) OTA firmware update via wireless: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
	1196	* Update through UART TTL interface: [[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]].
2.1	1197
	1198	= 6. FAQ =
	1199
17.1	1200	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1201
43.52	1202
17.1	1203	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1204	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1205
55.2	1206	== 6.2 How to generate PWM Output in SN50v3-LB? ==
	1207
	1208
55.1	1209	See this document: [[Generate PWM Output on SN50v3>>https://www.dropbox.com/scl/fi/r3trcet2knujg40w0mgyn/Generate-PWM-Output-on-SN50v3.pdf?rlkey=rxsgmrhhrv62iiiwjq9sv10bn&dl=0]].
	1210
	1211
57.1	1212	== 6.3 How to put several sensors to a SN50v3-LB? ==
	1213
57.2	1214
57.1	1215	When we want to put several sensors to A SN50v3-LB, the waterproof at the grand connector will become an issue. User can try to exchange the grand connector to below type.
	1216
	1217	[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
	1218
	1219	[[image:image-20230810121434-1.png\|\|height="242" width="656"]]
	1220
	1221
2.1	1222	= 7. Order Info =
	1223
	1224
10.1	1225	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1226
	1227	(% style="color:red" %)XX(%%): The default frequency band
11.1	1228
2.1	1229	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1230	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1231	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1232	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1233	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1234	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1235	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1236	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1237
10.1	1238	(% style="color:red" %)YY: (%%)Hole Option
2.1	1239
10.1	1240	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1241	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1242	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1243	* (% style="color:red" %)NH(%%): No Hole
	1244
2.1	1245	= 8. Packing Info =
	1246
43.52	1247
2.1	1248	(% style="color:#037691" %)Package Includes:
	1249
10.1	1250	* SN50v3-LB LoRaWAN Generic Node
2.1	1251
	1252	(% style="color:#037691" %)Dimension and weight:
	1253
	1254	* Device Size: cm
	1255	* Device Weight: g
	1256	* Package Size / pcs : cm
	1257	* Weight / pcs : g
	1258
	1259	= 9. Support =
	1260
	1261
	1262	* 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.
43.10	1263
41.4	1264	* 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.cc>>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.cc]]

Wiki source code of SN50v3-LB LoRaWAN Sensor Node User Manual

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