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

Version 55.1 by Edwin Chen on 2023/08/04 22:14

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
52.4	44
2.1	45	== 1.3 Specification ==
	46
43.4	47
2.1	48	(% style="color:#037691" %)Common DC Characteristics:
	49
	50	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	51	* Operating Temperature: -40 ~~ 85°C
	52
5.1	53	(% style="color:#037691" %)I/O Interface:
2.1	54
5.1	55	* Battery output (2.6v ~~ 3.6v depends on battery)
	56	* +5v controllable output
	57	* 3 x Interrupt or Digital IN/OUT pins
	58	* 3 x one-wire interfaces
	59	* 1 x UART Interface
	60	* 1 x I2C Interface
2.1	61
	62	(% style="color:#037691" %)LoRa Spec:
	63
	64	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	65	* Max +22 dBm constant RF output vs.
	66	* RX sensitivity: down to -139 dBm.
	67	* Excellent blocking immunity
	68
	69	(% style="color:#037691" %)Battery:
	70
	71	* Li/SOCI2 un-chargeable battery
	72	* Capacity: 8500mAh
	73	* Self-Discharge: <1% / Year @ 25°C
	74	* Max continuously current: 130mA
	75	* Max boost current: 2A, 1 second
	76
	77	(% style="color:#037691" %)Power Consumption
	78
	79	* Sleep Mode: 5uA @ 3.3v
	80	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	81
52.4	82
2.1	83	== 1.4 Sleep mode and working mode ==
	84
43.4	85
2.1	86	(% 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.
	87
	88	(% 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.
	89
	90
	91	== 1.5 Button & LEDs ==
	92
	93
	94	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	95
	96
	97	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	98	\|=(% 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
	99	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	100	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	101	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	102	)))
	103	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	104	(% 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.
	105	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	106	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.
	107	)))
	108	\|(% 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.
	109
52.4	110
2.1	111	== 1.6 BLE connection ==
	112
	113
5.1	114	SN50v3-LB supports BLE remote configure.
2.1	115
	116
	117	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:
	118
	119	* Press button to send an uplink
	120	* Press button to active device.
	121	* Device Power on or reset.
	122
	123	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	124
	125
6.1	126	== 1.7 Pin Definitions ==
2.1	127
	128
49.1	129	[[image:image-20230610163213-1.png\|\|height="404" width="699"]]
2.1	130
	131
	132	== 1.8 Mechanical ==
	133
	134
	135	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	136
	137	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	138
	139	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	140
	141
44.5	142	== 1.9 Hole Option ==
5.1	143
43.4	144
5.1	145	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:
	146
	147	[[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"]]
	148
	149	[[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"]]
	150
	151
10.1	152	= 2. Configure SN50v3-LB to connect to LoRaWAN network =
2.1	153
	154	== 2.1 How it works ==
	155
	156
44.3	157	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	158
	159
	160	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	161
	162
	163	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.
	164
44.3	165	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	166
	167
11.2	168	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.
2.1	169
11.2	170	Each SN50v3-LB is shipped with a sticker with the default device EUI as below:
2.1	171
11.2	172	[[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	173
	174
	175	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	176
	177
	178	(% style="color:blue" %)Register the device
	179
	180	[[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"]]
	181
	182
	183	(% style="color:blue" %)Add APP EUI and DEV EUI
	184
	185	[[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"]]
	186
	187
	188	(% style="color:blue" %)Add APP EUI in the application
	189
	190
	191	[[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"]]
	192
	193
	194	(% style="color:blue" %)Add APP KEY
	195
	196	[[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"]]
	197
	198
11.2	199	(% style="color:blue" %)Step 2:(%%) Activate SN50v3-LB
2.1	200
	201
11.2	202	Press the button for 5 seconds to activate the SN50v3-LB.
2.1	203
	204	(% 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.
	205
	206	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	207
	208
	209	== 2.3 Uplink Payload ==
	210
	211	=== 2.3.1 Device Status, FPORT~=5 ===
	212
	213
44.3	214	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	215
	216	The Payload format is as below.
	217
	218
	219	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	220	\|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)Device Status (FPORT=5)
	221	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
45.4	222	\|(% 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	223
	224	Example parse in TTNv3
	225
	226
44.3	227	(% style="color:#037691" %)Sensor Model(%%): For SN50v3-LB, this value is 0x1C
2.1	228
	229	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
	230
	231	(% style="color:#037691" %)Frequency Band:
	232
53.2	233	0x01: EU868
2.1	234
53.2	235	0x02: US915
2.1	236
53.2	237	0x03: IN865
2.1	238
53.2	239	0x04: AU915
2.1	240
53.2	241	0x05: KZ865
2.1	242
53.2	243	0x06: RU864
2.1	244
53.2	245	0x07: AS923
2.1	246
53.2	247	0x08: AS923-1
2.1	248
53.2	249	0x09: AS923-2
2.1	250
53.2	251	0x0a: AS923-3
2.1	252
53.2	253	0x0b: CN470
2.1	254
53.2	255	0x0c: EU433
2.1	256
53.2	257	0x0d: KR920
2.1	258
53.2	259	0x0e: MA869
2.1	260
	261
	262	(% style="color:#037691" %)Sub-Band:
	263
	264	AU915 and US915:value 0x00 ~~ 0x08
	265
	266	CN470: value 0x0B ~~ 0x0C
	267
	268	Other Bands: Always 0x00
	269
	270
	271	(% style="color:#037691" %)Battery Info:
	272
	273	Check the battery voltage.
	274
	275	Ex1: 0x0B45 = 2885mV
	276
	277	Ex2: 0x0B49 = 2889mV
	278
	279
12.1	280	=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===
2.1	281
	282
44.2	283	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	284
	285	For example:
	286
44.2	287	(% 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	288
	289
13.1	290	(% style="color:red" %) Important Notice:
12.1	291
44.3	292	~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	293
44.2	294	2. All modes share the same Payload Explanation from HERE.
43.53	295
44.2	296	3. By default, the device will send an uplink message every 20 minutes.
	297
	298
13.1	299	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	300
43.5	301
12.1	302	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	303
43.5	304	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	305	\|(% 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	306	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	307	Temperature(DS18B20)(PC13)
40.1	308	)))\|(% style="width:78px" %)(((
43.12	309	ADC(PA4)
26.2	310	)))\|(% style="width:216px" %)(((
43.13	311	Digital in(PB15)&Digital Interrupt(PA8)
40.1	312	)))\|(% style="width:308px" %)(((
43.12	313	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	314	)))\|(% style="width:154px" %)(((
43.12	315	Humidity(SHT20 or SHT31)
36.1	316	)))
	317
12.1	318	[[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"]]
	319
	320
13.1	321	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	322
43.45	323
12.1	324	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.
	325
43.14	326	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	327	\|(% 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	328	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	329	Temperature(DS18B20)(PC13)
40.1	330	)))\|(% style="width:87px" %)(((
43.16	331	ADC(PA4)
40.1	332	)))\|(% style="width:189px" %)(((
43.16	333	Digital in(PB15) & Digital Interrupt(PA8)
40.1	334	)))\|(% style="width:208px" %)(((
53.2	335	Distance measure by: 1) LIDAR-Lite V3HP
	336	Or 2) Ultrasonic Sensor
40.1	337	)))\|(% style="width:117px" %)Reserved
12.1	338
	339	[[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"]]
	340
43.45	341
43.17	342	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	343
26.2	344	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	345
43.45	346
43.17	347	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	348
44.1	349	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	350
26.2	351	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	352
43.45	353
12.1	354	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	355
43.19	356	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	357	\|(% 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	358	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	359	Temperature(DS18B20)(PC13)
40.1	360	)))\|(% style="width:173px" %)(((
43.19	361	Digital in(PB15) & Digital Interrupt(PA8)
40.1	362	)))\|(% style="width:84px" %)(((
43.19	363	ADC(PA4)
40.1	364	)))\|(% style="width:323px" %)(((
12.1	365	Distance measure by:1)TF-Mini plus LiDAR
53.3	366	Or 2) TF-Luna LiDAR
40.1	367	)))\|(% style="width:188px" %)Distance signal strength
12.1	368
	369	[[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"]]
	370
43.45	371
12.1	372	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	373
44.1	374	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	375
26.2	376	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	377
43.45	378
12.1	379	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	380
44.1	381	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	382
52.1	383	[[image:image-20230610170047-1.png\|\|height="452" width="799"]]
12.1	384
	385
13.1	386	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	387
43.45	388
12.1	389	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	390
43.21	391	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	392	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	393	Size(bytes)
43.54	394	)))\|=(% 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	395	\|Value\|(% style="width:68px" %)(((
43.23	396	ADC1(PA4)
26.2	397	)))\|(% style="width:75px" %)(((
43.23	398	ADC2(PA5)
36.1	399	)))\|(((
43.23	400	ADC3(PA8)
36.1	401	)))\|(((
	402	Digital Interrupt(PB15)
	403	)))\|(% style="width:304px" %)(((
43.23	404	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	405	)))\|(% style="width:163px" %)(((
43.23	406	Humidity(SHT20 or SHT31)
36.1	407	)))\|(% style="width:53px" %)Bat
	408
	409	[[image:image-20230513110214-6.png]]
	410
	411
13.1	412	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	413
12.1	414
26.2	415	This mode has total 11 bytes. As shown below:
12.1	416
43.26	417	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	418	\|(% 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	419	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	420	Temperature1(DS18B20)(PC13)
26.2	421	)))\|(% style="width:82px" %)(((
43.27	422	ADC(PA4)
26.2	423	)))\|(% style="width:210px" %)(((
43.27	424	Digital in(PB15) & Digital Interrupt(PA8)
26.2	425	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	426	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	427
	428	[[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"]]
	429
44.4	430
39.2	431	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	432
39.1	433
13.1	434	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	435
43.45	436
26.2	437	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	438
	439	Each HX711 need to be calibrated before used. User need to do below two steps:
	440
44.2	441	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)AT+WEIGRE(%%) to calibrate to Zero gram.
	442	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	443	1. (((
26.2	444	Weight has 4 bytes, the unit is g.
43.53	445
	446
	447
12.1	448	)))
	449
	450	For example:
	451
44.2	452	(% style="color:blue" %)AT+GETSENSORVALUE =0
12.1	453
	454	Response: Weight is 401 g
	455
	456	Check the response of this command and adjust the value to match the real value for thing.
	457
43.29	458	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	459	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	460	Size(bytes)
43.30	461	)))\|=(% 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	462	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	463	Temperature(DS18B20)(PC13)
40.1	464	)))\|(% style="width:85px" %)(((
43.31	465	ADC(PA4)
40.1	466	)))\|(% style="width:186px" %)(((
43.55	467	Digital in(PB15) & Digital Interrupt(PA8)
40.1	468	)))\|(% style="width:100px" %)Weight
26.2	469
12.1	470	[[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"]]
	471
	472
43.45	473
13.1	474	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	475
43.45	476
12.1	477	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.
	478
	479	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.
	480
26.2	481	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	482
43.53	483
43.45	484	(% 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	485
43.38	486	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	487	\|=(% 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	488	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	489	Temperature(DS18B20)(PC13)
36.1	490	)))\|(% style="width:108px" %)(((
43.31	491	ADC(PA4)
36.1	492	)))\|(% style="width:126px" %)(((
43.31	493	Digital in(PB15)
36.1	494	)))\|(% style="width:145px" %)(((
43.31	495	Count(PA8)
36.1	496	)))
	497
12.1	498	[[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"]]
	499
	500
13.1	501	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	502
43.45	503
43.38	504	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	505	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	506	Size(bytes)
43.34	507	)))\|=(% 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	508	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	509	Temperature(DS18B20)
	510	(PC13)
40.1	511	)))\|(% style="width:83px" %)(((
43.35	512	ADC(PA5)
40.1	513	)))\|(% style="width:184px" %)(((
36.1	514	Digital Interrupt1(PA8)
40.1	515	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	516
	517	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	518
43.45	519
13.1	520	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	521
43.45	522
43.38	523	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	524	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	525	Size(bytes)
43.55	526	)))\|=(% 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	527	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	528	Temperature(DS18B20)
	529	(PC13)
	530	)))\|(% style="width:94px" %)(((
43.36	531	ADC1(PA4)
36.1	532	)))\|(% style="width:198px" %)(((
	533	Digital Interrupt(PB15)
	534	)))\|(% style="width:84px" %)(((
43.36	535	ADC2(PA5)
40.1	536	)))\|(% style="width:82px" %)(((
43.36	537	ADC3(PA8)
12.1	538	)))
	539
36.1	540	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	541
	542
13.1	543	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	544
43.45	545
43.38	546	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	547	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	548	Size(bytes)
43.56	549	)))\|=(% 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	550	\|Value\|BAT\|(((
43.58	551	Temperature
	552	(DS18B20)(PC13)
12.1	553	)))\|(((
43.58	554	Temperature2
	555	(DS18B20)(PB9)
12.1	556	)))\|(((
36.1	557	Digital Interrupt
	558	(PB15)
	559	)))\|(% style="width:193px" %)(((
43.58	560	Temperature3
	561	(DS18B20)(PB8)
36.1	562	)))\|(% style="width:78px" %)(((
43.39	563	Count1(PA8)
36.1	564	)))\|(% style="width:78px" %)(((
43.39	565	Count2(PA4)
12.1	566	)))
	567
36.1	568	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	569
43.40	570	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	571
43.44	572	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	573
43.44	574	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	575
43.44	576	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	577
	578
43.41	579	(% style="color:blue" %)AT+SETCNT=aa,bb
	580
36.1	581	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	582
36.1	583	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	584
	585
14.1	586	=== 2.3.3 Decode payload ===
	587
43.45	588
12.1	589	While using TTN V3 network, you can add the payload format to decode the payload.
	590
	591	[[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"]]
	592
	593	The payload decoder function for TTN V3 are here:
	594
44.2	595	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	596
	597
14.1	598	==== 2.3.3.1 Battery Info ====
2.1	599
43.45	600
44.2	601	Check the battery voltage for SN50v3-LB.
2.1	602
	603	Ex1: 0x0B45 = 2885mV
	604
	605	Ex2: 0x0B49 = 2889mV
	606
	607
14.1	608	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	609
43.45	610
42.1	611	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	612
43.45	613	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	614
43.41	615	(% style="color:blue" %)Connection:
14.1	616
26.2	617	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	618
43.46	619
43.41	620	(% style="color:blue" %)Example:
2.1	621
	622	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	623
	624	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	625
	626	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	627
	628
14.1	629	==== 2.3.3.3 Digital Input ====
2.1	630
43.46	631
26.2	632	The digital input for pin PB15,
2.1	633
26.2	634	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	635	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	636
26.2	637	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	638	(((
36.1	639	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	640
43.46	641	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	642
	643
26.2	644	)))
	645
14.1	646	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	647
43.46	648
53.1	649	The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
2.1	650
53.1	651	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	652
26.2	653	[[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	654
44.2	655
43.46	656	(% 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	657
43.1	658
14.1	659	==== 2.3.3.5 Digital Interrupt ====
	660
43.46	661
44.2	662	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	663
43.44	664	(% style="color:blue" %) Interrupt connection method:
14.1	665
36.1	666	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	667
43.46	668
43.8	669	(% style="color:blue" %)Example to use with door sensor :
14.1	670
	671	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.
	672
	673	[[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"]]
	674
44.2	675	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	676
	677
43.46	678	(% style="color:blue" %)Below is the installation example:
	679
44.2	680	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	681
	682	* (((
44.2	683	One pin to SN50v3-LB's PA8 pin
14.1	684	)))
	685	* (((
44.2	686	The other pin to SN50v3-LB's VDD pin
14.1	687	)))
	688
36.1	689	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	690
43.46	691	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	692
36.1	693	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	694
	695	[[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"]]
	696
	697	The above photos shows the two parts of the magnetic switch fitted to a door.
	698
	699	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.
	700
	701	The command is:
	702
44.2	703	(% 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	704
	705	Below shows some screen captures in TTN V3:
	706
	707	[[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"]]
	708
43.47	709
44.4	710	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	711
	712	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	713
	714
26.2	715	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	716
43.47	717
26.2	718	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	719
40.1	720	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	721
44.2	722	(% 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	723
44.2	724
14.1	725	Below is the connection to SHT20/ SHT31. The connection is as below:
	726
52.1	727	[[image:image-20230610170152-2.png\|\|height="501" width="846"]]
36.1	728
44.4	729
14.1	730	The device will be able to get the I2C sensor data now and upload to IoT Server.
	731
	732	[[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"]]
	733
	734	Convert the read byte to decimal and divide it by ten.
	735
2.1	736	Example:
	737
14.1	738	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	739
14.1	740	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	741
14.1	742	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	743
	744
14.1	745	==== 2.3.3.7 Distance Reading ====
2.1	746
43.48	747
43.42	748	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	749
	750
	751	==== 2.3.3.8 Ultrasonic Sensor ====
	752
43.48	753
26.2	754	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	755
44.2	756	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	757
43.44	758	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	759
14.1	760	The picture below shows the connection:
	761
36.1	762	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	763
43.50	764
44.2	765	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	766
	767	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	768
	769	Example:
	770
	771	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	772
	773
	774	==== 2.3.3.9 Battery Output - BAT pin ====
	775
43.50	776
44.4	777	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	778
	779
	780	==== 2.3.3.10 +5V Output ====
	781
43.50	782
44.2	783	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	784
	785	The 5V output time can be controlled by AT Command.
	786
43.9	787	(% style="color:blue" %)AT+5VT=1000
14.1	788
	789	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	790
44.4	791	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	792
	793
	794	==== 2.3.3.11 BH1750 Illumination Sensor ====
	795
43.50	796
14.1	797	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	798
40.1	799	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	800
43.51	801
40.1	802	[[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	803
	804
	805	==== 2.3.3.12 Working MOD ====
	806
43.51	807
14.1	808	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	809
	810	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	811
	812	Case 7^^th^^ Byte >> 2 & 0x1f:
	813
	814	* 0: MOD1
	815	* 1: MOD2
	816	* 2: MOD3
	817	* 3: MOD4
	818	* 4: MOD5
	819	* 5: MOD6
36.1	820	* 6: MOD7
	821	* 7: MOD8
	822	* 8: MOD9
14.1	823
53.3	824
2.1	825	== 2.4 Payload Decoder file ==
	826
	827
	828	In TTN, use can add a custom payload so it shows friendly reading
	829
	830	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	831
40.1	832	[[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	833
	834
15.1	835	== 2.5 Frequency Plans ==
2.1	836
	837
15.1	838	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	839
	840	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	841
	842
16.1	843	= 3. Configure SN50v3-LB =
2.1	844
	845	== 3.1 Configure Methods ==
	846
	847
16.1	848	SN50v3-LB supports below configure method:
2.1	849
	850	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	851	* 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]].
	852	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	853
53.3	854
2.1	855	== 3.2 General Commands ==
	856
	857
	858	These commands are to configure:
	859
	860	* General system settings like: uplink interval.
	861	* LoRaWAN protocol & radio related command.
	862
	863	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	864
	865	[[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/]]
	866
	867
16.1	868	== 3.3 Commands special design for SN50v3-LB ==
2.1	869
	870
44.2	871	These commands only valid for SN50v3-LB, as below:
2.1	872
	873
	874	=== 3.3.1 Set Transmit Interval Time ===
	875
43.51	876
2.1	877	Feature: Change LoRaWAN End Node Transmit Interval.
	878
	879	(% style="color:blue" %)AT Command: AT+TDC
	880
	881	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	882	\|=(% 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	883	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	884	30000
	885	OK
	886	the interval is 30000ms = 30s
	887	)))
	888	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	889	OK
	890	Set transmit interval to 60000ms = 60 seconds
	891	)))
	892
	893	(% style="color:blue" %)Downlink Command: 0x01
	894
	895	Format: Command Code (0x01) followed by 3 bytes time value.
	896
	897	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	898
	899	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	900	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	901
53.3	902
2.1	903	=== 3.3.2 Get Device Status ===
	904
43.52	905
40.1	906	Send a LoRaWAN downlink to ask the device to send its status.
2.1	907
44.4	908	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	909
44.4	910	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	911
	912
36.1	913	=== 3.3.3 Set Interrupt Mode ===
2.1	914
43.52	915
2.1	916	Feature, Set Interrupt mode for GPIO_EXIT.
	917
36.1	918	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	919
	920	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	921	\|=(% 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	922	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	923	0
	924	OK
	925	the mode is 0 =Disable Interrupt
	926	)))
36.1	927	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	928	Set Transmit Interval
	929	0. (Disable Interrupt),
	930	~1. (Trigger by rising and falling edge)
	931	2. (Trigger by falling edge)
	932	3. (Trigger by rising edge)
	933	)))\|(% style="width:157px" %)OK
36.1	934	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	935	Set Transmit Interval
	936	trigger by rising edge.
	937	)))\|(% style="width:157px" %)OK
	938	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	939
2.1	940	(% style="color:blue" %)Downlink Command: 0x06
	941
	942	Format: Command Code (0x06) followed by 3 bytes.
	943
	944	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	945
36.1	946	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	947	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	948	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	949	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	950
53.3	951
36.1	952	=== 3.3.4 Set Power Output Duration ===
	953
43.52	954
36.1	955	Control the output duration 5V . Before each sampling, device will
	956
	957	~1. first enable the power output to external sensor,
	958
	959	2. keep it on as per duration, read sensor value and construct uplink payload
	960
	961	3. final, close the power output.
	962
	963	(% style="color:blue" %)AT Command: AT+5VT
	964
	965	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	966	\|=(% 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	967	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	968	500(default)
	969	OK
	970	)))
	971	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	972	Close after a delay of 1000 milliseconds.
	973	)))\|(% style="width:157px" %)OK
	974
	975	(% style="color:blue" %)Downlink Command: 0x07
	976
	977	Format: Command Code (0x07) followed by 2 bytes.
	978
	979	The first and second bytes are the time to turn on.
	980
40.1	981	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	982	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	983
53.3	984
36.1	985	=== 3.3.5 Set Weighing parameters ===
	986
43.52	987
37.1	988	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	989
	990	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	991
	992	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	993	\|=(% 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	994	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	995	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	996	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	997
	998	(% style="color:blue" %)Downlink Command: 0x08
	999
37.1	1000	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1001
37.1	1002	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	1003
37.1	1004	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1005
37.1	1006	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1007	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1008	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1009
53.3	1010
36.1	1011	=== 3.3.6 Set Digital pulse count value ===
	1012
43.52	1013
36.1	1014	Feature: Set the pulse count value.
	1015
37.1	1016	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1017
36.1	1018	(% style="color:blue" %)AT Command: AT+SETCNT
	1019
	1020	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1021	\|=(% 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	1022	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1023	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1024
	1025	(% style="color:blue" %)Downlink Command: 0x09
	1026
	1027	Format: Command Code (0x09) followed by 5 bytes.
	1028
	1029	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1030
	1031	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1032	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1033
53.3	1034
36.1	1035	=== 3.3.7 Set Workmode ===
	1036
43.52	1037
37.1	1038	Feature: Switch working mode.
36.1	1039
	1040	(% style="color:blue" %)AT Command: AT+MOD
	1041
	1042	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1043	\|=(% 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	1044	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1045	OK
	1046	)))
	1047	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1048	OK
	1049	Attention:Take effect after ATZ
	1050	)))
	1051
	1052	(% style="color:blue" %)Downlink Command: 0x0A
	1053
	1054	Format: Command Code (0x0A) followed by 1 bytes.
	1055
	1056	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1057	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1058
53.3	1059
2.1	1060	= 4. Battery & Power Consumption =
	1061
	1062
11.1	1063	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1064
	1065	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1066
	1067
	1068	= 5. OTA Firmware update =
	1069
	1070
	1071	(% class="wikigeneratedid" %)
44.4	1072	User can change firmware SN50v3-LB to:
2.1	1073
	1074	* Change Frequency band/ region.
	1075	* Update with new features.
	1076	* Fix bugs.
	1077
52.2	1078	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1079
44.4	1080	Methods to Update Firmware:
2.1	1081
53.3	1082	* (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/]]
	1083	* 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	1084
53.3	1085
2.1	1086	= 6. FAQ =
	1087
17.1	1088	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1089
43.52	1090
17.1	1091	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1092	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1093
53.3	1094
55.1	1095	== 6.2 How to generate PWM Output in SN50v3-L? ==
54.2	1096
55.1	1097	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]].
	1098
	1099
2.1	1100	= 7. Order Info =
	1101
	1102
10.1	1103	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1104
	1105	(% style="color:red" %)XX(%%): The default frequency band
11.1	1106
2.1	1107	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1108	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1109	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1110	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1111	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1112	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1113	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1114	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1115
10.1	1116	(% style="color:red" %)YY: (%%)Hole Option
2.1	1117
10.1	1118	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1119	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1120	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1121	* (% style="color:red" %)NH(%%): No Hole
	1122
53.3	1123
2.1	1124	= 8. Packing Info =
	1125
43.52	1126
2.1	1127	(% style="color:#037691" %)Package Includes:
	1128
10.1	1129	* SN50v3-LB LoRaWAN Generic Node
2.1	1130
	1131	(% style="color:#037691" %)Dimension and weight:
	1132
	1133	* Device Size: cm
	1134	* Device Weight: g
	1135	* Package Size / pcs : cm
	1136	* Weight / pcs : g
	1137
53.3	1138
2.1	1139	= 9. Support =
	1140
	1141
	1142	* 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	1143
41.4	1144	* 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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