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

Version 79.3 by Xiaoling on 2023/12/14 09:10

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
79.3	6	Table of Contents:
2.1	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
74.8	583	(% style="color:red" %)Note: Firmware not release, contact Dragino for testing.
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
79.2	595	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
	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:90px" %)2
65.1	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	&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
77.1	631	===== 2.3.2.10.b Uplink, PWM output =====
72.1	632
77.1	633	[[image:image-20230817172209-2.png\|\|height="439" width="683"]]
65.1	634
79.1	635	(% 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+PWMOUT=a,b,c
74.3	636
79.1	637	a is the time delay of the output, the unit is ms.
75.1	638
79.1	639	b is the output frequency, the unit is HZ.
75.1	640
79.1	641	c is the duty cycle of the output, the unit is %.
75.1	642
79.1	643	(% 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" %)Downlink(%%): (% style="color:#037691" %)0B 01 bb cc aa
75.1	644
79.1	645	aa is the time delay of the output, the unit is ms.
	646
	647	bb is the output frequency, the unit is HZ.
	648
	649	cc is the duty cycle of the output, the unit is %.
	650
	651
	652	For example, send a AT command: AT+PWMOUT=65535,1000,50 The PWM is always out, the frequency is 1000HZ, and the duty cycle is 50.
	653
	654	The oscilloscope displays as follows:
	655
	656	[[image:image-20231213102404-1.jpeg\|\|height="780" width="932"]]
	657
	658
75.1	659	===== 2.3.2.10.c Downlink, PWM output =====
	660
	661
65.1	662	[[image:image-20230817173800-3.png\|\|height="412" width="685"]]
	663
	664	Downlink: (% style="color:#037691" %)0B xx xx xx yy zz zz
	665
	666	xx xx xx is the output frequency, the unit is HZ.
	667
	668	yy is the duty cycle of the output, the unit is %.
	669
	670	zz zz is the time delay of the output, the unit is ms.
	671
	672
	673	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.
	674
	675	The oscilloscope displays as follows:
	676
	677	[[image:image-20230817173858-5.png\|\|height="694" width="921"]]
	678
	679
14.1	680	=== 2.3.3 Decode payload ===
	681
43.45	682
12.1	683	While using TTN V3 network, you can add the payload format to decode the payload.
	684
	685	[[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"]]
	686
	687	The payload decoder function for TTN V3 are here:
	688
44.2	689	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	690
	691
14.1	692	==== 2.3.3.1 Battery Info ====
2.1	693
43.45	694
44.2	695	Check the battery voltage for SN50v3-LB.
2.1	696
	697	Ex1: 0x0B45 = 2885mV
	698
	699	Ex2: 0x0B49 = 2889mV
	700
	701
14.1	702	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	703
43.45	704
42.1	705	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	706
43.45	707	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	708
43.41	709	(% style="color:blue" %)Connection:
14.1	710
26.2	711	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	712
43.46	713
43.41	714	(% style="color:blue" %)Example:
2.1	715
	716	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	717
	718	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	719
	720	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	721
	722
14.1	723	==== 2.3.3.3 Digital Input ====
2.1	724
43.46	725
26.2	726	The digital input for pin PB15,
2.1	727
26.2	728	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	729	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	730
26.2	731	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	732	(((
36.1	733	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	734
43.46	735	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	736
	737
26.2	738	)))
	739
14.1	740	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	741
43.46	742
53.1	743	The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
2.1	744
53.1	745	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	746
26.2	747	[[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	748
44.2	749
43.46	750	(% 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	751
43.1	752
59.1	753	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.
	754
	755	[[image:image-20230811113449-1.png\|\|height="370" width="608"]]
	756
14.1	757	==== 2.3.3.5 Digital Interrupt ====
	758
43.46	759
44.2	760	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	761
43.44	762	(% style="color:blue" %) Interrupt connection method:
14.1	763
36.1	764	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	765
43.46	766
43.8	767	(% style="color:blue" %)Example to use with door sensor :
14.1	768
	769	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.
	770
	771	[[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"]]
	772
44.2	773	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	774
	775
43.46	776	(% style="color:blue" %)Below is the installation example:
	777
44.2	778	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	779
	780	* (((
44.2	781	One pin to SN50v3-LB's PA8 pin
14.1	782	)))
	783	* (((
44.2	784	The other pin to SN50v3-LB's VDD pin
14.1	785	)))
	786
36.1	787	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	788
43.46	789	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	790
36.1	791	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	792
	793	[[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"]]
	794
	795	The above photos shows the two parts of the magnetic switch fitted to a door.
	796
	797	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.
	798
	799	The command is:
	800
44.2	801	(% 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	802
	803	Below shows some screen captures in TTN V3:
	804
	805	[[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"]]
	806
43.47	807
44.4	808	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	809
	810	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	811
	812
26.2	813	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	814
43.47	815
26.2	816	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	817
40.1	818	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	819
44.2	820	(% 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	821
44.2	822
14.1	823	Below is the connection to SHT20/ SHT31. The connection is as below:
	824
52.1	825	[[image:image-20230610170152-2.png\|\|height="501" width="846"]]
36.1	826
44.4	827
14.1	828	The device will be able to get the I2C sensor data now and upload to IoT Server.
	829
	830	[[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"]]
	831
	832	Convert the read byte to decimal and divide it by ten.
	833
2.1	834	Example:
	835
14.1	836	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	837
14.1	838	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	839
14.1	840	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	841
	842
14.1	843	==== 2.3.3.7 Distance Reading ====
2.1	844
43.48	845
43.42	846	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	847
	848
	849	==== 2.3.3.8 Ultrasonic Sensor ====
	850
43.48	851
26.2	852	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	853
44.2	854	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	855
43.44	856	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	857
14.1	858	The picture below shows the connection:
	859
36.1	860	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	861
43.50	862
44.2	863	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	864
	865	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	866
	867	Example:
	868
	869	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	870
	871
	872	==== 2.3.3.9 Battery Output - BAT pin ====
	873
43.50	874
44.4	875	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	876
	877
	878	==== 2.3.3.10 +5V Output ====
	879
43.50	880
44.2	881	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	882
	883	The 5V output time can be controlled by AT Command.
	884
43.9	885	(% style="color:blue" %)AT+5VT=1000
14.1	886
	887	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	888
44.4	889	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	890
	891
	892	==== 2.3.3.11 BH1750 Illumination Sensor ====
	893
43.50	894
14.1	895	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	896
40.1	897	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	898
43.51	899
40.1	900	[[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	901
	902
65.1	903	==== 2.3.3.12 PWM MOD ====
14.1	904
43.51	905
69.1	906	* (((
	907	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.
	908	)))
	909	* (((
	910	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:
	911	)))
	912
	913	[[image:image-20230817183249-3.png\|\|height="320" width="417"]]
	914
	915	* (((
	916	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.
	917	)))
	918	* (((
74.2	919	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.
74.8	920	)))
	921	* (((
76.1	922	PWM Input allows low power consumption. PWM Output to achieve real-time control, you need to go to class C. Power consumption will not be low.
70.1	923
74.8	924	For PWM Output Feature, there are two consideration to see if the device can be powered by battery or have to be powered by external DC.
74.5	925
76.1	926	a) If real-time control output is required, the SN50v3-LB is already operating in class C and an external power supply must be used.
74.8	927
76.1	928	b) If the output duration is more than 30 seconds, better to use external power source.
74.8	929
	930
70.1	931
69.1	932	)))
	933
65.1	934	==== 2.3.3.13 Working MOD ====
	935
	936
14.1	937	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	938
	939	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	940
	941	Case 7^^th^^ Byte >> 2 & 0x1f:
	942
	943	* 0: MOD1
	944	* 1: MOD2
	945	* 2: MOD3
	946	* 3: MOD4
	947	* 4: MOD5
	948	* 5: MOD6
36.1	949	* 6: MOD7
	950	* 7: MOD8
	951	* 8: MOD9
65.1	952	* 9: MOD10
14.1	953
2.1	954	== 2.4 Payload Decoder file ==
	955
	956
	957	In TTN, use can add a custom payload so it shows friendly reading
	958
	959	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	960
40.1	961	[[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	962
	963
15.1	964	== 2.5 Frequency Plans ==
2.1	965
	966
15.1	967	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	968
	969	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	970
	971
16.1	972	= 3. Configure SN50v3-LB =
2.1	973
	974	== 3.1 Configure Methods ==
	975
	976
16.1	977	SN50v3-LB supports below configure method:
2.1	978
	979	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	980	* 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]].
	981	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	982
	983	== 3.2 General Commands ==
	984
	985
	986	These commands are to configure:
	987
	988	* General system settings like: uplink interval.
	989	* LoRaWAN protocol & radio related command.
	990
	991	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	992
	993	[[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/]]
	994
	995
16.1	996	== 3.3 Commands special design for SN50v3-LB ==
2.1	997
	998
44.2	999	These commands only valid for SN50v3-LB, as below:
2.1	1000
	1001
	1002	=== 3.3.1 Set Transmit Interval Time ===
	1003
43.51	1004
2.1	1005	Feature: Change LoRaWAN End Node Transmit Interval.
	1006
	1007	(% style="color:blue" %)AT Command: AT+TDC
	1008
	1009	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	1010	\|=(% 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	1011	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	1012	30000
	1013	OK
	1014	the interval is 30000ms = 30s
	1015	)))
	1016	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	1017	OK
	1018	Set transmit interval to 60000ms = 60 seconds
	1019	)))
	1020
	1021	(% style="color:blue" %)Downlink Command: 0x01
	1022
	1023	Format: Command Code (0x01) followed by 3 bytes time value.
	1024
	1025	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	1026
	1027	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1028	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1029
	1030	=== 3.3.2 Get Device Status ===
	1031
43.52	1032
40.1	1033	Send a LoRaWAN downlink to ask the device to send its status.
2.1	1034
44.4	1035	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	1036
44.4	1037	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	1038
	1039
36.1	1040	=== 3.3.3 Set Interrupt Mode ===
2.1	1041
43.52	1042
2.1	1043	Feature, Set Interrupt mode for GPIO_EXIT.
	1044
36.1	1045	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	1046
	1047	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1048	\|=(% 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	1049	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	1050	0
	1051	OK
	1052	the mode is 0 =Disable Interrupt
	1053	)))
36.1	1054	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	1055	Set Transmit Interval
	1056	0. (Disable Interrupt),
	1057	~1. (Trigger by rising and falling edge)
	1058	2. (Trigger by falling edge)
	1059	3. (Trigger by rising edge)
	1060	)))\|(% style="width:157px" %)OK
36.1	1061	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	1062	Set Transmit Interval
	1063	trigger by rising edge.
	1064	)))\|(% style="width:157px" %)OK
	1065	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	1066
2.1	1067	(% style="color:blue" %)Downlink Command: 0x06
	1068
	1069	Format: Command Code (0x06) followed by 3 bytes.
	1070
	1071	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1072
36.1	1073	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	1074	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	1075	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	1076	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	1077
36.1	1078	=== 3.3.4 Set Power Output Duration ===
	1079
43.52	1080
36.1	1081	Control the output duration 5V . Before each sampling, device will
	1082
	1083	~1. first enable the power output to external sensor,
	1084
	1085	2. keep it on as per duration, read sensor value and construct uplink payload
	1086
	1087	3. final, close the power output.
	1088
	1089	(% style="color:blue" %)AT Command: AT+5VT
	1090
	1091	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1092	\|=(% 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	1093	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	1094	500(default)
	1095	OK
	1096	)))
	1097	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	1098	Close after a delay of 1000 milliseconds.
	1099	)))\|(% style="width:157px" %)OK
	1100
	1101	(% style="color:blue" %)Downlink Command: 0x07
	1102
	1103	Format: Command Code (0x07) followed by 2 bytes.
	1104
	1105	The first and second bytes are the time to turn on.
	1106
40.1	1107	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	1108	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	1109
	1110	=== 3.3.5 Set Weighing parameters ===
	1111
43.52	1112
37.1	1113	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	1114
	1115	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	1116
	1117	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1118	\|=(% 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	1119	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	1120	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	1121	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	1122
	1123	(% style="color:blue" %)Downlink Command: 0x08
	1124
37.1	1125	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1126
37.1	1127	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	1128
37.1	1129	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1130
37.1	1131	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1132	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1133	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1134
36.1	1135	=== 3.3.6 Set Digital pulse count value ===
	1136
43.52	1137
36.1	1138	Feature: Set the pulse count value.
	1139
37.1	1140	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1141
36.1	1142	(% style="color:blue" %)AT Command: AT+SETCNT
	1143
	1144	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1145	\|=(% 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	1146	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1147	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1148
	1149	(% style="color:blue" %)Downlink Command: 0x09
	1150
	1151	Format: Command Code (0x09) followed by 5 bytes.
	1152
	1153	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1154
	1155	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1156	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1157
	1158	=== 3.3.7 Set Workmode ===
	1159
43.52	1160
37.1	1161	Feature: Switch working mode.
36.1	1162
	1163	(% style="color:blue" %)AT Command: AT+MOD
	1164
	1165	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1166	\|=(% 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	1167	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1168	OK
	1169	)))
	1170	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1171	OK
	1172	Attention:Take effect after ATZ
	1173	)))
	1174
	1175	(% style="color:blue" %)Downlink Command: 0x0A
	1176
	1177	Format: Command Code (0x0A) followed by 1 bytes.
	1178
	1179	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1180	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1181
77.1	1182	(% id="H3.3.8PWMsetting" %)
72.1	1183	=== 3.3.8 PWM setting ===
	1184
74.5	1185
77.1	1186	(% class="mark" %)Feature: Set the time acquisition unit for PWM input capture.
72.1	1187
	1188	(% style="color:blue" %)AT Command: AT+PWMSET
	1189
	1190	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
77.1	1191	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 223px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Function\|=(% style="width: 130px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Response
	1192	\|(% style="width:154px" %)AT+PWMSET=?\|(% style="width:223px" %)0\|(% style="width:130px" %)(((
72.1	1193	0(default)
	1194
	1195	OK
	1196	)))
77.1	1197	\|(% style="width:154px" %)AT+PWMSET=0\|(% style="width:223px" %)The unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ. \|(% style="width:130px" %)(((
72.1	1198	OK
	1199
	1200	)))
77.1	1201	\|(% style="width:154px" %)AT+PWMSET=1\|(% style="width:223px" %)The unit of PWM capture time is millisecond. The capture frequency range is between 5HZ and 250HZ. \|(% style="width:130px" %)OK
72.1	1202
	1203	(% style="color:blue" %)Downlink Command: 0x0C
	1204
	1205	Format: Command Code (0x0C) followed by 1 bytes.
	1206
	1207	* Example 1: Downlink Payload: 0C00 ~-~--> AT+PWMSET=0
	1208	* Example 2: Downlink Payload: 0C01 ~-~--> AT+PWMSET=1
	1209
79.1	1210	(% class="mark" %)Feature: Set PWM output time, output frequency and output duty cycle.
77.1	1211
76.1	1212	(% style="color:blue" %)AT Command: AT+PWMOUT
75.1	1213
77.1	1214	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1215	\|=(% style="width: 183px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Command Example\|=(% style="width: 193px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Function\|=(% style="width: 137px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Response
	1216	\|(% style="width:183px" %)AT+PWMOUT=?\|(% style="width:193px" %)0\|(% style="width:137px" %)(((
76.1	1217	0,0,0(default)
75.1	1218
76.1	1219	OK
	1220	)))
77.1	1221	\|(% style="width:183px" %)AT+PWMOUT=0,0,0\|(% style="width:193px" %)The default is PWM input detection\|(% style="width:137px" %)(((
76.1	1222	OK
	1223
	1224	)))
77.1	1225	\|(% style="width:183px" %)AT+PWMOUT=5,1000,50\|(% style="width:193px" %)(((
	1226	The PWM output time is 5ms, the output frequency is 1000HZ, and the output duty cycle is 50%.
75.1	1227
77.1	1228
	1229	)))\|(% style="width:137px" %)(((
	1230	OK
	1231	)))
	1232
	1233	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1234	\|=(% style="width: 155px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Command Example\|=(% style="width: 112px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Function\|=(% style="width: 242px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)parameters
	1235	\|(% colspan="1" rowspan="3" style="width:155px" %)(((
	1236	AT+PWMOUT=a,b,c
	1237
	1238
	1239	)))\|(% colspan="1" rowspan="3" style="width:112px" %)(((
79.1	1240	Set PWM output time, output frequency and output duty cycle.
	1241
	1242	(((
77.1	1243
	1244	)))
	1245
	1246	(((
	1247
	1248	)))
	1249	)))\|(% style="width:242px" %)(((
76.1	1250	a: Output time (unit: seconds)
75.1	1251
77.1	1252	The value ranges from 0 to 65535.
	1253
	1254	When a=65535, PWM will always output.
	1255	)))
	1256	\|(% style="width:242px" %)(((
76.1	1257	b: Output frequency (unit: HZ)
77.1	1258	)))
	1259	\|(% style="width:242px" %)(((
	1260	c: Output duty cycle (unit: %)
76.1	1261
77.1	1262	The value ranges from 0 to 100.
76.1	1263	)))
	1264
77.1	1265	(% style="color:blue" %)Downlink Command: 0x0B01
76.1	1266
77.1	1267	Format: Command Code (0x0B01) followed by 6 bytes.
76.1	1268
77.1	1269	Downlink payload：0B01 bb cc aa ~-~--> AT+PWMOUT=a,b,c
76.1	1270
77.1	1271	* Example 1: Downlink Payload: 0B01 03E8 0032 0005 ~-~--> AT+PWMSET=5,1000,50
	1272	* Example 2: Downlink Payload: 0B01 07D0 003C 000A ~-~--> AT+PWMSET=10,2000,60
76.1	1273
	1274
79.1	1275	= 4. Battery & Power Cons =
	1276
	1277
11.1	1278	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1279
	1280	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1281
	1282
	1283	= 5. OTA Firmware update =
	1284
	1285
	1286	(% class="wikigeneratedid" %)
44.4	1287	User can change firmware SN50v3-LB to:
2.1	1288
	1289	* Change Frequency band/ region.
	1290	* Update with new features.
	1291	* Fix bugs.
	1292
52.2	1293	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1294
44.4	1295	Methods to Update Firmware:
2.1	1296
53.3	1297	* (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/]]
	1298	* 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	1299
	1300	= 6. FAQ =
	1301
17.1	1302	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1303
43.52	1304
17.1	1305	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1306	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1307
55.2	1308	== 6.2 How to generate PWM Output in SN50v3-LB? ==
	1309
	1310
55.1	1311	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]].
	1312
	1313
57.1	1314	== 6.3 How to put several sensors to a SN50v3-LB? ==
	1315
57.2	1316
57.1	1317	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.
	1318
	1319	[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
	1320
	1321	[[image:image-20230810121434-1.png\|\|height="242" width="656"]]
	1322
	1323
2.1	1324	= 7. Order Info =
	1325
	1326
10.1	1327	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1328
	1329	(% style="color:red" %)XX(%%): The default frequency band
11.1	1330
2.1	1331	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1332	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1333	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1334	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1335	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1336	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1337	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1338	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1339
10.1	1340	(% style="color:red" %)YY: (%%)Hole Option
2.1	1341
10.1	1342	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1343	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1344	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1345	* (% style="color:red" %)NH(%%): No Hole
	1346
2.1	1347	= 8. Packing Info =
	1348
43.52	1349
2.1	1350	(% style="color:#037691" %)Package Includes:
	1351
10.1	1352	* SN50v3-LB LoRaWAN Generic Node
2.1	1353
	1354	(% style="color:#037691" %)Dimension and weight:
	1355
	1356	* Device Size: cm
	1357	* Device Weight: g
	1358	* Package Size / pcs : cm
	1359	* Weight / pcs : g
	1360
	1361	= 9. Support =
	1362
	1363
	1364	* 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	1365
41.4	1366	* 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

Applications