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

Version 74.3 by Xiaoling on 2023/08/19 15:41

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
4.1	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, smartphone detection, building automation, 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
4.1	30
2.1	31	== 1.2 Features ==
	32
43.44	33
2.1	34	* LoRaWAN 1.0.3 Class A
	35	* Ultra-low power consumption
5.1	36	* Open-Source hardware/software
2.1	37	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	38	* Support Bluetooth v5.1 and LoRaWAN remote configure
	39	* Support wireless OTA update firmware
	40	* Uplink on periodically
	41	* Downlink to change configure
	42	* 8500mAh Battery for long term use
	43
	44	== 1.3 Specification ==
	45
43.4	46
2.1	47	(% style="color:#037691" %)Common DC Characteristics:
	48
	49	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	50	* Operating Temperature: -40 ~~ 85°C
	51
5.1	52	(% style="color:#037691" %)I/O Interface:
2.1	53
5.1	54	* Battery output (2.6v ~~ 3.6v depends on battery)
	55	* +5v controllable output
	56	* 3 x Interrupt or Digital IN/OUT pins
	57	* 3 x one-wire interfaces
	58	* 1 x UART Interface
	59	* 1 x I2C Interface
2.1	60
	61	(% style="color:#037691" %)LoRa Spec:
	62
	63	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	64	* Max +22 dBm constant RF output vs.
	65	* RX sensitivity: down to -139 dBm.
	66	* Excellent blocking immunity
	67
	68	(% style="color:#037691" %)Battery:
	69
	70	* Li/SOCI2 un-chargeable battery
	71	* Capacity: 8500mAh
	72	* Self-Discharge: <1% / Year @ 25°C
	73	* Max continuously current: 130mA
	74	* Max boost current: 2A, 1 second
	75
	76	(% style="color:#037691" %)Power Consumption
	77
	78	* Sleep Mode: 5uA @ 3.3v
	79	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	80
	81	== 1.4 Sleep mode and working mode ==
	82
43.4	83
2.1	84	(% 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.
	85
	86	(% 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.
	87
	88
	89	== 1.5 Button & LEDs ==
	90
	91
	92	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	93
	94
	95	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	96	\|=(% 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
	97	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	98	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	99	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	100	)))
	101	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	102	(% 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.
	103	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	104	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.
	105	)))
	106	\|(% 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.
	107
	108	== 1.6 BLE connection ==
	109
	110
5.1	111	SN50v3-LB supports BLE remote configure.
2.1	112
	113
	114	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:
	115
	116	* Press button to send an uplink
	117	* Press button to active device.
	118	* Device Power on or reset.
	119
	120	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	121
	122
6.1	123	== 1.7 Pin Definitions ==
2.1	124
	125
49.1	126	[[image:image-20230610163213-1.png\|\|height="404" width="699"]]
2.1	127
	128
	129	== 1.8 Mechanical ==
	130
	131
	132	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	133
	134	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	135
	136	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	137
	138
44.5	139	== 1.9 Hole Option ==
5.1	140
43.4	141
5.1	142	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:
	143
	144	[[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"]]
	145
	146	[[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"]]
	147
	148
10.1	149	= 2. Configure SN50v3-LB to connect to LoRaWAN network =
2.1	150
	151	== 2.1 How it works ==
	152
	153
44.3	154	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	155
	156
	157	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	158
	159
	160	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.
	161
44.3	162	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	163
	164
11.2	165	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.
2.1	166
11.2	167	Each SN50v3-LB is shipped with a sticker with the default device EUI as below:
2.1	168
11.2	169	[[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	170
	171
	172	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	173
	174
	175	(% style="color:blue" %)Register the device
	176
	177	[[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"]]
	178
	179
	180	(% style="color:blue" %)Add APP EUI and DEV EUI
	181
	182	[[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"]]
	183
	184
	185	(% style="color:blue" %)Add APP EUI in the application
	186
	187
	188	[[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"]]
	189
	190
	191	(% style="color:blue" %)Add APP KEY
	192
	193	[[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"]]
	194
	195
11.2	196	(% style="color:blue" %)Step 2:(%%) Activate SN50v3-LB
2.1	197
	198
11.2	199	Press the button for 5 seconds to activate the SN50v3-LB.
2.1	200
	201	(% 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.
	202
	203	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	204
	205
	206	== 2.3 Uplink Payload ==
	207
	208	=== 2.3.1 Device Status, FPORT~=5 ===
	209
	210
44.3	211	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	212
	213	The Payload format is as below.
	214
	215
	216	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	217	\|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)Device Status (FPORT=5)
	218	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
45.4	219	\|(% 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	220
	221	Example parse in TTNv3
	222
	223
44.3	224	(% style="color:#037691" %)Sensor Model(%%): For SN50v3-LB, this value is 0x1C
2.1	225
	226	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
	227
	228	(% style="color:#037691" %)Frequency Band:
	229
53.2	230	0x01: EU868
2.1	231
53.2	232	0x02: US915
2.1	233
53.2	234	0x03: IN865
2.1	235
53.2	236	0x04: AU915
2.1	237
53.2	238	0x05: KZ865
2.1	239
53.2	240	0x06: RU864
2.1	241
53.2	242	0x07: AS923
2.1	243
53.2	244	0x08: AS923-1
2.1	245
53.2	246	0x09: AS923-2
2.1	247
53.2	248	0x0a: AS923-3
2.1	249
53.2	250	0x0b: CN470
2.1	251
53.2	252	0x0c: EU433
2.1	253
53.2	254	0x0d: KR920
2.1	255
53.2	256	0x0e: MA869
2.1	257
	258
	259	(% style="color:#037691" %)Sub-Band:
	260
	261	AU915 and US915:value 0x00 ~~ 0x08
	262
	263	CN470: value 0x0B ~~ 0x0C
	264
	265	Other Bands: Always 0x00
	266
	267
	268	(% style="color:#037691" %)Battery Info:
	269
	270	Check the battery voltage.
	271
	272	Ex1: 0x0B45 = 2885mV
	273
	274	Ex2: 0x0B49 = 2889mV
	275
	276
12.1	277	=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===
2.1	278
	279
44.2	280	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	281
	282	For example:
	283
44.2	284	(% 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	285
	286
13.1	287	(% style="color:red" %) Important Notice:
12.1	288
44.3	289	~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	290
44.2	291	2. All modes share the same Payload Explanation from HERE.
43.53	292
44.2	293	3. By default, the device will send an uplink message every 20 minutes.
	294
	295
13.1	296	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	297
43.5	298
12.1	299	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	300
43.5	301	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	302	\|(% 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	303	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	304	Temperature(DS18B20)(PC13)
40.1	305	)))\|(% style="width:78px" %)(((
43.12	306	ADC(PA4)
26.2	307	)))\|(% style="width:216px" %)(((
43.13	308	Digital in(PB15)&Digital Interrupt(PA8)
40.1	309	)))\|(% style="width:308px" %)(((
43.12	310	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	311	)))\|(% style="width:154px" %)(((
43.12	312	Humidity(SHT20 or SHT31)
36.1	313	)))
	314
12.1	315	[[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"]]
	316
	317
13.1	318	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	319
43.45	320
12.1	321	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.
	322
43.14	323	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	324	\|(% 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	325	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	326	Temperature(DS18B20)(PC13)
40.1	327	)))\|(% style="width:87px" %)(((
43.16	328	ADC(PA4)
40.1	329	)))\|(% style="width:189px" %)(((
43.16	330	Digital in(PB15) & Digital Interrupt(PA8)
40.1	331	)))\|(% style="width:208px" %)(((
53.2	332	Distance measure by: 1) LIDAR-Lite V3HP
	333	Or 2) Ultrasonic Sensor
40.1	334	)))\|(% style="width:117px" %)Reserved
12.1	335
	336	[[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"]]
	337
43.45	338
43.17	339	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	340
26.2	341	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	342
43.45	343
43.17	344	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	345
44.1	346	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	347
26.2	348	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	349
43.45	350
12.1	351	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	352
43.19	353	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	354	\|(% 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	355	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	356	Temperature(DS18B20)(PC13)
40.1	357	)))\|(% style="width:173px" %)(((
43.19	358	Digital in(PB15) & Digital Interrupt(PA8)
40.1	359	)))\|(% style="width:84px" %)(((
43.19	360	ADC(PA4)
40.1	361	)))\|(% style="width:323px" %)(((
12.1	362	Distance measure by:1)TF-Mini plus LiDAR
53.3	363	Or 2) TF-Luna LiDAR
40.1	364	)))\|(% style="width:188px" %)Distance signal strength
12.1	365
	366	[[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"]]
	367
43.45	368
12.1	369	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	370
44.1	371	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	372
26.2	373	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	374
43.45	375
12.1	376	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	377
44.1	378	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	379
52.1	380	[[image:image-20230610170047-1.png\|\|height="452" width="799"]]
12.1	381
	382
13.1	383	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	384
43.45	385
12.1	386	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	387
43.21	388	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	389	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	390	Size(bytes)
43.54	391	)))\|=(% 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	392	\|Value\|(% style="width:68px" %)(((
43.23	393	ADC1(PA4)
26.2	394	)))\|(% style="width:75px" %)(((
43.23	395	ADC2(PA5)
36.1	396	)))\|(((
43.23	397	ADC3(PA8)
36.1	398	)))\|(((
	399	Digital Interrupt(PB15)
	400	)))\|(% style="width:304px" %)(((
43.23	401	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	402	)))\|(% style="width:163px" %)(((
43.23	403	Humidity(SHT20 or SHT31)
36.1	404	)))\|(% style="width:53px" %)Bat
	405
	406	[[image:image-20230513110214-6.png]]
	407
	408
13.1	409	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	410
12.1	411
26.2	412	This mode has total 11 bytes. As shown below:
12.1	413
43.26	414	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	415	\|(% 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	416	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	417	Temperature1(DS18B20)(PC13)
26.2	418	)))\|(% style="width:82px" %)(((
43.27	419	ADC(PA4)
26.2	420	)))\|(% style="width:210px" %)(((
43.27	421	Digital in(PB15) & Digital Interrupt(PA8)
26.2	422	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	423	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	424
	425	[[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"]]
	426
44.4	427
39.2	428	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	429
39.1	430
13.1	431	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	432
43.45	433
26.2	434	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	435
	436	Each HX711 need to be calibrated before used. User need to do below two steps:
	437
44.2	438	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)AT+WEIGRE(%%) to calibrate to Zero gram.
	439	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	440	1. (((
26.2	441	Weight has 4 bytes, the unit is g.
43.53	442
	443
	444
12.1	445	)))
	446
	447	For example:
	448
44.2	449	(% style="color:blue" %)AT+GETSENSORVALUE =0
12.1	450
	451	Response: Weight is 401 g
	452
	453	Check the response of this command and adjust the value to match the real value for thing.
	454
43.29	455	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	456	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	457	Size(bytes)
43.30	458	)))\|=(% 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	459	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	460	Temperature(DS18B20)(PC13)
40.1	461	)))\|(% style="width:85px" %)(((
43.31	462	ADC(PA4)
40.1	463	)))\|(% style="width:186px" %)(((
43.55	464	Digital in(PB15) & Digital Interrupt(PA8)
40.1	465	)))\|(% style="width:100px" %)Weight
26.2	466
12.1	467	[[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"]]
	468
	469
13.1	470	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	471
43.45	472
12.1	473	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.
	474
	475	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.
	476
26.2	477	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	478
43.53	479
43.45	480	(% 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	481
43.38	482	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	483	\|=(% 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	484	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	485	Temperature(DS18B20)(PC13)
36.1	486	)))\|(% style="width:108px" %)(((
43.31	487	ADC(PA4)
36.1	488	)))\|(% style="width:126px" %)(((
43.31	489	Digital in(PB15)
36.1	490	)))\|(% style="width:145px" %)(((
43.31	491	Count(PA8)
36.1	492	)))
	493
12.1	494	[[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"]]
	495
	496
13.1	497	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	498
43.45	499
43.38	500	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	501	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	502	Size(bytes)
43.34	503	)))\|=(% 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	504	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	505	Temperature(DS18B20)
	506	(PC13)
40.1	507	)))\|(% style="width:83px" %)(((
43.35	508	ADC(PA5)
40.1	509	)))\|(% style="width:184px" %)(((
36.1	510	Digital Interrupt1(PA8)
40.1	511	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	512
	513	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	514
43.45	515
13.1	516	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	517
43.45	518
43.38	519	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	520	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	521	Size(bytes)
43.55	522	)))\|=(% 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	523	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	524	Temperature(DS18B20)
	525	(PC13)
	526	)))\|(% style="width:94px" %)(((
43.36	527	ADC1(PA4)
36.1	528	)))\|(% style="width:198px" %)(((
	529	Digital Interrupt(PB15)
	530	)))\|(% style="width:84px" %)(((
43.36	531	ADC2(PA5)
40.1	532	)))\|(% style="width:82px" %)(((
43.36	533	ADC3(PA8)
12.1	534	)))
	535
36.1	536	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	537
	538
13.1	539	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	540
43.45	541
43.38	542	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	543	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	544	Size(bytes)
43.56	545	)))\|=(% 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	546	\|Value\|BAT\|(((
43.58	547	Temperature
	548	(DS18B20)(PC13)
12.1	549	)))\|(((
43.58	550	Temperature2
	551	(DS18B20)(PB9)
12.1	552	)))\|(((
36.1	553	Digital Interrupt
	554	(PB15)
	555	)))\|(% style="width:193px" %)(((
43.58	556	Temperature3
	557	(DS18B20)(PB8)
36.1	558	)))\|(% style="width:78px" %)(((
43.39	559	Count1(PA8)
36.1	560	)))\|(% style="width:78px" %)(((
43.39	561	Count2(PA4)
12.1	562	)))
	563
36.1	564	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	565
43.40	566	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	567
43.44	568	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	569
43.44	570	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	571
43.44	572	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	573
	574
43.41	575	(% style="color:blue" %)AT+SETCNT=aa,bb
	576
36.1	577	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	578
36.1	579	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	580
	581
65.1	582	==== 2.3.2.10 MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
	583
74.3	584
65.1	585	In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
	586
74.3	587	[[It should be noted when using PWM mode.>>\|\|anchor="H2.3.3.12A0PWMMOD"]]
65.1	588
69.1	589
65.1	590	===== 2.3.2.10.a Uplink, PWM input capture =====
	591
74.3	592
65.1	593	[[image:image-20230817172209-2.png\|\|height="439" width="683"]]
	594
	595	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
	596	\|(% 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
	597	\|Value\|Bat\|(% style="width:191px" %)(((
	598	Temperature(DS18B20)(PC13)
	599	)))\|(% style="width:78px" %)(((
	600	ADC(PA4)
	601	)))\|(% style="width:135px" %)(((
	602	PWM_Setting
	603
	604	&Digital Interrupt(PA8)
	605	)))\|(% style="width:70px" %)(((
	606	Pulse period
	607	)))\|(% style="width:89px" %)(((
	608	Duration of high level
	609	)))
	610
	611	[[image:image-20230817170702-1.png\|\|height="161" width="1044"]]
	612
	613
72.1	614	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	615
72.1	616	Frequency：
65.1	617
72.1	618	(% class="MsoNormal" %)
74.1	619	(% 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	620
72.1	621	(% class="MsoNormal" %)
74.1	622	(% 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	623
	624	(% class="MsoNormal" %)
	625	Duty cycle:
	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
	894
69.1	895	)))
	896
65.1	897	==== 2.3.3.13 Working MOD ====
	898
	899
14.1	900	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	901
	902	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	903
	904	Case 7^^th^^ Byte >> 2 & 0x1f:
	905
	906	* 0: MOD1
	907	* 1: MOD2
	908	* 2: MOD3
	909	* 3: MOD4
	910	* 4: MOD5
	911	* 5: MOD6
36.1	912	* 6: MOD7
	913	* 7: MOD8
	914	* 8: MOD9
65.1	915	* 9: MOD10
14.1	916
2.1	917	== 2.4 Payload Decoder file ==
	918
	919
	920	In TTN, use can add a custom payload so it shows friendly reading
	921
	922	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	923
40.1	924	[[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	925
	926
15.1	927	== 2.5 Frequency Plans ==
2.1	928
	929
15.1	930	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	931
	932	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	933
	934
16.1	935	= 3. Configure SN50v3-LB =
2.1	936
	937	== 3.1 Configure Methods ==
	938
	939
16.1	940	SN50v3-LB supports below configure method:
2.1	941
	942	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	943	* 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]].
	944	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	945
	946	== 3.2 General Commands ==
	947
	948
	949	These commands are to configure:
	950
	951	* General system settings like: uplink interval.
	952	* LoRaWAN protocol & radio related command.
	953
	954	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	955
	956	[[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/]]
	957
	958
16.1	959	== 3.3 Commands special design for SN50v3-LB ==
2.1	960
	961
44.2	962	These commands only valid for SN50v3-LB, as below:
2.1	963
	964
	965	=== 3.3.1 Set Transmit Interval Time ===
	966
43.51	967
2.1	968	Feature: Change LoRaWAN End Node Transmit Interval.
	969
	970	(% style="color:blue" %)AT Command: AT+TDC
	971
	972	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	973	\|=(% 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	974	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	975	30000
	976	OK
	977	the interval is 30000ms = 30s
	978	)))
	979	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	980	OK
	981	Set transmit interval to 60000ms = 60 seconds
	982	)))
	983
	984	(% style="color:blue" %)Downlink Command: 0x01
	985
	986	Format: Command Code (0x01) followed by 3 bytes time value.
	987
	988	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	989
	990	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	991	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	992
	993	=== 3.3.2 Get Device Status ===
	994
43.52	995
40.1	996	Send a LoRaWAN downlink to ask the device to send its status.
2.1	997
44.4	998	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	999
44.4	1000	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	1001
	1002
36.1	1003	=== 3.3.3 Set Interrupt Mode ===
2.1	1004
43.52	1005
2.1	1006	Feature, Set Interrupt mode for GPIO_EXIT.
	1007
36.1	1008	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	1009
	1010	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1011	\|=(% 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	1012	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	1013	0
	1014	OK
	1015	the mode is 0 =Disable Interrupt
	1016	)))
36.1	1017	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	1018	Set Transmit Interval
	1019	0. (Disable Interrupt),
	1020	~1. (Trigger by rising and falling edge)
	1021	2. (Trigger by falling edge)
	1022	3. (Trigger by rising edge)
	1023	)))\|(% style="width:157px" %)OK
36.1	1024	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	1025	Set Transmit Interval
	1026	trigger by rising edge.
	1027	)))\|(% style="width:157px" %)OK
	1028	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	1029
2.1	1030	(% style="color:blue" %)Downlink Command: 0x06
	1031
	1032	Format: Command Code (0x06) followed by 3 bytes.
	1033
	1034	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1035
36.1	1036	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	1037	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	1038	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	1039	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	1040
36.1	1041	=== 3.3.4 Set Power Output Duration ===
	1042
43.52	1043
36.1	1044	Control the output duration 5V . Before each sampling, device will
	1045
	1046	~1. first enable the power output to external sensor,
	1047
	1048	2. keep it on as per duration, read sensor value and construct uplink payload
	1049
	1050	3. final, close the power output.
	1051
	1052	(% style="color:blue" %)AT Command: AT+5VT
	1053
	1054	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1055	\|=(% 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	1056	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	1057	500(default)
	1058	OK
	1059	)))
	1060	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	1061	Close after a delay of 1000 milliseconds.
	1062	)))\|(% style="width:157px" %)OK
	1063
	1064	(% style="color:blue" %)Downlink Command: 0x07
	1065
	1066	Format: Command Code (0x07) followed by 2 bytes.
	1067
	1068	The first and second bytes are the time to turn on.
	1069
40.1	1070	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	1071	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	1072
	1073	=== 3.3.5 Set Weighing parameters ===
	1074
43.52	1075
37.1	1076	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	1077
	1078	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	1079
	1080	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1081	\|=(% 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	1082	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	1083	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	1084	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	1085
	1086	(% style="color:blue" %)Downlink Command: 0x08
	1087
37.1	1088	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1089
37.1	1090	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	1091
37.1	1092	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1093
37.1	1094	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1095	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1096	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1097
36.1	1098	=== 3.3.6 Set Digital pulse count value ===
	1099
43.52	1100
36.1	1101	Feature: Set the pulse count value.
	1102
37.1	1103	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1104
36.1	1105	(% style="color:blue" %)AT Command: AT+SETCNT
	1106
	1107	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1108	\|=(% 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	1109	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1110	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1111
	1112	(% style="color:blue" %)Downlink Command: 0x09
	1113
	1114	Format: Command Code (0x09) followed by 5 bytes.
	1115
	1116	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1117
	1118	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1119	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1120
	1121	=== 3.3.7 Set Workmode ===
	1122
43.52	1123
37.1	1124	Feature: Switch working mode.
36.1	1125
	1126	(% style="color:blue" %)AT Command: AT+MOD
	1127
	1128	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1129	\|=(% 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	1130	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1131	OK
	1132	)))
	1133	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1134	OK
	1135	Attention:Take effect after ATZ
	1136	)))
	1137
	1138	(% style="color:blue" %)Downlink Command: 0x0A
	1139
	1140	Format: Command Code (0x0A) followed by 1 bytes.
	1141
	1142	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1143	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1144
72.1	1145	=== 3.3.8 PWM setting ===
	1146
	1147	Feature: Set the time acquisition unit for PWM input capture.
	1148
	1149	(% style="color:blue" %)AT Command: AT+PWMSET
	1150
	1151	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1152	\|=(% 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
	1153	\|(% style="width:154px" %)AT+PWMSET=?\|(% style="width:196px" %)0\|(% style="width:157px" %)(((
	1154	0(default)
	1155
	1156	OK
	1157	)))
	1158	\|(% 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" %)(((
	1159	OK
	1160
	1161	)))
	1162	\|(% 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
	1163
	1164	(% style="color:blue" %)Downlink Command: 0x0C
	1165
	1166	Format: Command Code (0x0C) followed by 1 bytes.
	1167
	1168	* Example 1: Downlink Payload: 0C00 ~-~--> AT+PWMSET=0
	1169	* Example 2: Downlink Payload: 0C01 ~-~--> AT+PWMSET=1
	1170
2.1	1171	= 4. Battery & Power Consumption =
	1172
	1173
11.1	1174	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1175
	1176	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1177
	1178
	1179	= 5. OTA Firmware update =
	1180
	1181
	1182	(% class="wikigeneratedid" %)
44.4	1183	User can change firmware SN50v3-LB to:
2.1	1184
	1185	* Change Frequency band/ region.
	1186	* Update with new features.
	1187	* Fix bugs.
	1188
52.2	1189	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1190
44.4	1191	Methods to Update Firmware:
2.1	1192
53.3	1193	* (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/]]
	1194	* 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	1195
	1196	= 6. FAQ =
	1197
17.1	1198	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1199
43.52	1200
17.1	1201	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1202	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1203
55.2	1204	== 6.2 How to generate PWM Output in SN50v3-LB? ==
	1205
	1206
55.1	1207	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]].
	1208
	1209
57.1	1210	== 6.3 How to put several sensors to a SN50v3-LB? ==
	1211
57.2	1212
57.1	1213	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.
	1214
	1215	[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
	1216
	1217	[[image:image-20230810121434-1.png\|\|height="242" width="656"]]
	1218
	1219
2.1	1220	= 7. Order Info =
	1221
	1222
10.1	1223	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1224
	1225	(% style="color:red" %)XX(%%): The default frequency band
11.1	1226
2.1	1227	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1228	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1229	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1230	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1231	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1232	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1233	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1234	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1235
10.1	1236	(% style="color:red" %)YY: (%%)Hole Option
2.1	1237
10.1	1238	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1239	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1240	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1241	* (% style="color:red" %)NH(%%): No Hole
	1242
2.1	1243	= 8. Packing Info =
	1244
43.52	1245
2.1	1246	(% style="color:#037691" %)Package Includes:
	1247
10.1	1248	* SN50v3-LB LoRaWAN Generic Node
2.1	1249
	1250	(% style="color:#037691" %)Dimension and weight:
	1251
	1252	* Device Size: cm
	1253	* Device Weight: g
	1254	* Package Size / pcs : cm
	1255	* Weight / pcs : g
	1256
	1257	= 9. Support =
	1258
	1259
	1260	* 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	1261
41.4	1262	* 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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