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

Version 49.1 by Saxer Lin on 2023/06/10 16:32

version	line-number	content
41.2	1	(% style="text-align:center" %)
	2	[[image:image-20230515135611-1.jpeg\|\|height="589" width="589"]]
2.1	3
	4
	5
	6	Table of Contents：
	7
	8	{{toc/}}
	9
	10
	11
	12
	13
	14
	15	= 1. Introduction =
	16
5.1	17	== 1.1 What is SN50v3-LB LoRaWAN Generic Node ==
2.1	18
43.2	19
4.1	20	(% style="color:blue" %)SN50V3-LB (%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %) 8500mA Li/SOCl2 battery(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.
2.1	21
4.1	22	(% style="color:blue" %)SN50V3-LB wireless part(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
2.1	23
4.1	24	(% style="color:blue" %)SN50V3-LB (%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors.
2.1	25
4.1	26	(% style="color:blue" %)SN50V3-LB(%%) has a built-in BLE module, user can configure the sensor remotely via Mobile Phone. It also support OTA upgrade via private LoRa protocol for easy maintaining.
2.1	27
4.1	28	SN50V3-LB is the 3^^rd^^ generation of LSN50 series generic sensor node from Dragino. It is an (% style="color:blue" %)open source project(%%) and has a mature LoRaWAN stack and application software. User can use the pre-load software for their IoT projects or easily customize the software for different requirements.
2.1	29
4.1	30
2.1	31	== 1.2 Features ==
	32
43.44	33
2.1	34	* LoRaWAN 1.0.3 Class A
	35	* Ultra-low power consumption
5.1	36	* Open-Source hardware/software
2.1	37	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	38	* Support Bluetooth v5.1 and LoRaWAN remote configure
	39	* Support wireless OTA update firmware
	40	* Uplink on periodically
	41	* Downlink to change configure
	42	* 8500mAh Battery for long term use
	43
	44	== 1.3 Specification ==
	45
43.4	46
2.1	47	(% style="color:#037691" %)Common DC Characteristics:
	48
	49	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	50	* Operating Temperature: -40 ~~ 85°C
	51
5.1	52	(% style="color:#037691" %)I/O Interface:
2.1	53
5.1	54	* Battery output (2.6v ~~ 3.6v depends on battery)
	55	* +5v controllable output
	56	* 3 x Interrupt or Digital IN/OUT pins
	57	* 3 x one-wire interfaces
	58	* 1 x UART Interface
	59	* 1 x I2C Interface
2.1	60
	61	(% style="color:#037691" %)LoRa Spec:
	62
	63	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	64	* Max +22 dBm constant RF output vs.
	65	* RX sensitivity: down to -139 dBm.
	66	* Excellent blocking immunity
	67
	68	(% style="color:#037691" %)Battery:
	69
	70	* Li/SOCI2 un-chargeable battery
	71	* Capacity: 8500mAh
	72	* Self-Discharge: <1% / Year @ 25°C
	73	* Max continuously current: 130mA
	74	* Max boost current: 2A, 1 second
	75
	76	(% style="color:#037691" %)Power Consumption
	77
	78	* Sleep Mode: 5uA @ 3.3v
	79	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	80
	81	== 1.4 Sleep mode and working mode ==
	82
43.4	83
2.1	84	(% style="color:blue" %)Deep Sleep Mode: (%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
	85
	86	(% style="color:blue" %)Working Mode: (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
	87
	88
	89	== 1.5 Button & LEDs ==
	90
	91
	92	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	93
	94
	95	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	96	\|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)Behavior on ACT\|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)Action
	97	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	98	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	99	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	100	)))
	101	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	102	(% style="color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network.
	103	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	104	Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
	105	)))
	106	\|(% style="width:167px" %)Fast press ACT 5 times.\|(% style="width:117px" %)Deactivate Device\|(% style="width:225px" %)(% style="color:red" %)Red led(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
	107
	108	== 1.6 BLE connection ==
	109
	110
5.1	111	SN50v3-LB supports BLE remote configure.
2.1	112
	113
	114	BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
	115
	116	* Press button to send an uplink
	117	* Press button to active device.
	118	* Device Power on or reset.
	119
	120	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	121
	122
6.1	123	== 1.7 Pin Definitions ==
2.1	124
	125
49.1	126	[[image:image-20230610163213-1.png\|\|height="404" width="699"]]
2.1	127
	128
	129	== 1.8 Mechanical ==
	130
	131
	132	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	133
	134	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	135
	136	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	137
	138
44.5	139	== 1.9 Hole Option ==
5.1	140
43.4	141
5.1	142	SN50v3-LB has different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below:
	143
	144	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627104757-1.png?rev=1.1\|\|alt="image-20220627104757-1.png"]]
	145
	146	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656298089706-973.png?rev=1.1\|\|alt="1656298089706-973.png"]]
	147
	148
10.1	149	= 2. Configure SN50v3-LB to connect to LoRaWAN network =
2.1	150
	151	== 2.1 How it works ==
	152
	153
44.3	154	The SN50v3-LB is configured as (% style="color:#037691" %)LoRaWAN OTAA Class A(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the SN50v3-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
2.1	155
	156
	157	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	158
	159
	160	Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] as a LoRaWAN gateway in this example.
	161
44.3	162	The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
2.1	163
	164
11.2	165	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.
2.1	166
11.2	167	Each SN50v3-LB is shipped with a sticker with the default device EUI as below:
2.1	168
11.2	169	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-LB_S31B-LB/WebHome/image-20230426084152-1.png?width=502&height=233&rev=1.1\|\|alt="图片-20230426084152-1.png" height="233" width="502"]]
2.1	170
	171
	172	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	173
	174
	175	(% style="color:blue" %)Register the device
	176
	177	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/1654935135620-998.png?rev=1.1\|\|alt="1654935135620-998.png"]]
	178
	179
	180	(% style="color:blue" %)Add APP EUI and DEV EUI
	181
	182	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-4.png?width=753&height=551&rev=1.1\|\|alt="图片-20220611161308-4.png"]]
	183
	184
	185	(% style="color:blue" %)Add APP EUI in the application
	186
	187
	188	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-5.png?width=742&height=601&rev=1.1\|\|alt="图片-20220611161308-5.png"]]
	189
	190
	191	(% style="color:blue" %)Add APP KEY
	192
	193	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1\|\|alt="图片-20220611161308-6.png"]]
	194
	195
11.2	196	(% style="color:blue" %)Step 2:(%%) Activate SN50v3-LB
2.1	197
	198
11.2	199	Press the button for 5 seconds to activate the SN50v3-LB.
2.1	200
	201	(% style="color:green" %)Green led(%%) will fast blink 5 times, device will enter (% style="color:blue" %)OTA mode(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	202
	203	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	204
	205
	206	== 2.3 Uplink Payload ==
	207
	208	=== 2.3.1 Device Status, FPORT~=5 ===
	209
	210
44.3	211	Users can use the downlink command(0x26 01) to ask SN50v3-LB to send device configure detail, include device configure status. SN50v3-LB will uplink a payload via FPort=5 to server.
2.1	212
	213	The Payload format is as below.
	214
	215
	216	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	217	\|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)Device Status (FPORT=5)
	218	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
45.4	219	\|(% style="width:103px" %)Value\|(% style="width:72px" %)Sensor Model\|Firmware Version\|(% style="width:91px" %)Frequency Band\|(% style="width:86px" %)Sub-band\|(% style="width:44px" %)BAT
2.1	220
	221	Example parse in TTNv3
	222
	223
44.3	224	(% style="color:#037691" %)Sensor Model(%%): For SN50v3-LB, this value is 0x1C
2.1	225
	226	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
	227
	228	(% style="color:#037691" %)Frequency Band:
	229
	230	*0x01: EU868
	231
	232	*0x02: US915
	233
	234	*0x03: IN865
	235
	236	*0x04: AU915
	237
	238	*0x05: KZ865
	239
	240	*0x06: RU864
	241
	242	*0x07: AS923
	243
	244	*0x08: AS923-1
	245
	246	*0x09: AS923-2
	247
	248	*0x0a: AS923-3
	249
	250	*0x0b: CN470
	251
	252	*0x0c: EU433
	253
	254	*0x0d: KR920
	255
	256	*0x0e: MA869
	257
	258
	259	(% style="color:#037691" %)Sub-Band:
	260
	261	AU915 and US915:value 0x00 ~~ 0x08
	262
	263	CN470: value 0x0B ~~ 0x0C
	264
	265	Other Bands: Always 0x00
	266
	267
	268	(% style="color:#037691" %)Battery Info:
	269
	270	Check the battery voltage.
	271
	272	Ex1: 0x0B45 = 2885mV
	273
	274	Ex2: 0x0B49 = 2889mV
	275
	276
12.1	277	=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===
2.1	278
	279
44.2	280	SN50v3-LB has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command (% style="color:blue" %)AT+MOD(%%) to set SN50v3-LB to different working modes.
12.1	281
	282	For example:
	283
44.2	284	(% style="color:blue" %)AT+MOD=2 (%%) ~/~/ will set the SN50v3 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
12.1	285
	286
13.1	287	(% style="color:red" %) Important Notice:
12.1	288
44.3	289	~1. Some working modes has payload more than 12 bytes, The US915/AU915/AS923 frequency bands' definition has maximum 11 bytes in (% style="color:blue" %)DR0(%%). Server sides will see NULL payload while SN50v3-LB transmit in DR0 with 12 bytes payload.
12.1	290
44.2	291	2. All modes share the same Payload Explanation from HERE.
43.53	292
44.2	293	3. By default, the device will send an uplink message every 20 minutes.
	294
	295
13.1	296	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	297
43.5	298
12.1	299	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	300
43.5	301	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	302	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:130px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)2
45.4	303	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	304	Temperature(DS18B20)(PC13)
40.1	305	)))\|(% style="width:78px" %)(((
43.12	306	ADC(PA4)
26.2	307	)))\|(% style="width:216px" %)(((
43.13	308	Digital in(PB15)&Digital Interrupt(PA8)
40.1	309	)))\|(% style="width:308px" %)(((
43.12	310	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	311	)))\|(% style="width:154px" %)(((
43.12	312	Humidity(SHT20 or SHT31)
36.1	313	)))
	314
12.1	315	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627150949-6.png?rev=1.1\|\|alt="image-20220627150949-6.png"]]
	316
	317
13.1	318	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	319
43.45	320
12.1	321	This mode is target to measure the distance. The payload of this mode is totally 11 bytes. The 8^^th^^ and 9^^th^^ bytes is for the distance.
	322
43.14	323	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	324	\|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:30px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)2
45.4	325	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	326	Temperature(DS18B20)(PC13)
40.1	327	)))\|(% style="width:87px" %)(((
43.16	328	ADC(PA4)
40.1	329	)))\|(% style="width:189px" %)(((
43.16	330	Digital in(PB15) & Digital Interrupt(PA8)
40.1	331	)))\|(% style="width:208px" %)(((
43.16	332	Distance measure by:1) LIDAR-Lite V3HP
43.60	333	Or
43.54	334	2) Ultrasonic Sensor
40.1	335	)))\|(% style="width:117px" %)Reserved
12.1	336
	337	[[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"]]
	338
43.45	339
43.17	340	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	341
26.2	342	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	343
43.45	344
43.17	345	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	346
44.1	347	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	348
26.2	349	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	350
43.45	351
12.1	352	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	353
43.19	354	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	355	\|(% 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	356	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	357	Temperature(DS18B20)(PC13)
40.1	358	)))\|(% style="width:173px" %)(((
43.19	359	Digital in(PB15) & Digital Interrupt(PA8)
40.1	360	)))\|(% style="width:84px" %)(((
43.19	361	ADC(PA4)
40.1	362	)))\|(% style="width:323px" %)(((
12.1	363	Distance measure by:1)TF-Mini plus LiDAR
43.22	364	Or
	365	2) TF-Luna LiDAR
40.1	366	)))\|(% style="width:188px" %)Distance signal strength
12.1	367
	368	[[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"]]
	369
43.45	370
12.1	371	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	372
44.1	373	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	374
26.2	375	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	376
43.45	377
12.1	378	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	379
44.1	380	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	381
36.1	382	[[image:image-20230513105207-4.png\|\|height="469" width="802"]]
12.1	383
	384
13.1	385	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	386
43.45	387
12.1	388	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	389
43.21	390	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	391	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	392	Size(bytes)
43.54	393	)))\|=(% 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	394	\|Value\|(% style="width:68px" %)(((
43.23	395	ADC1(PA4)
26.2	396	)))\|(% style="width:75px" %)(((
43.23	397	ADC2(PA5)
36.1	398	)))\|(((
43.23	399	ADC3(PA8)
36.1	400	)))\|(((
	401	Digital Interrupt(PB15)
	402	)))\|(% style="width:304px" %)(((
43.23	403	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	404	)))\|(% style="width:163px" %)(((
43.23	405	Humidity(SHT20 or SHT31)
36.1	406	)))\|(% style="width:53px" %)Bat
	407
	408	[[image:image-20230513110214-6.png]]
	409
	410
13.1	411	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	412
12.1	413
26.2	414	This mode has total 11 bytes. As shown below:
12.1	415
43.26	416	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	417	\|(% 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	418	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	419	Temperature1(DS18B20)(PC13)
26.2	420	)))\|(% style="width:82px" %)(((
43.27	421	ADC(PA4)
26.2	422	)))\|(% style="width:210px" %)(((
43.27	423	Digital in(PB15) & Digital Interrupt(PA8)
26.2	424	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	425	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	426
	427	[[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"]]
	428
44.4	429
39.2	430	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	431
39.1	432
13.1	433	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	434
43.45	435
26.2	436	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	437
	438	Each HX711 need to be calibrated before used. User need to do below two steps:
	439
44.2	440	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)AT+WEIGRE(%%) to calibrate to Zero gram.
	441	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	442	1. (((
26.2	443	Weight has 4 bytes, the unit is g.
43.53	444
	445
	446
12.1	447	)))
	448
	449	For example:
	450
44.2	451	(% style="color:blue" %)AT+GETSENSORVALUE =0
12.1	452
	453	Response: Weight is 401 g
	454
	455	Check the response of this command and adjust the value to match the real value for thing.
	456
43.29	457	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	458	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	459	Size(bytes)
43.30	460	)))\|=(% 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	461	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	462	Temperature(DS18B20)(PC13)
40.1	463	)))\|(% style="width:85px" %)(((
43.31	464	ADC(PA4)
40.1	465	)))\|(% style="width:186px" %)(((
43.55	466	Digital in(PB15) & Digital Interrupt(PA8)
40.1	467	)))\|(% style="width:100px" %)Weight
26.2	468
12.1	469	[[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"]]
	470
	471
43.45	472
13.1	473	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	474
43.45	475
12.1	476	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.
	477
	478	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.
	479
26.2	480	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	481
43.53	482
43.45	483	(% 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	484
43.38	485	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	486	\|=(% 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	487	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	488	Temperature(DS18B20)(PC13)
36.1	489	)))\|(% style="width:108px" %)(((
43.31	490	ADC(PA4)
36.1	491	)))\|(% style="width:126px" %)(((
43.31	492	Digital in(PB15)
36.1	493	)))\|(% style="width:145px" %)(((
43.31	494	Count(PA8)
36.1	495	)))
	496
12.1	497	[[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"]]
	498
	499
13.1	500	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	501
43.45	502
43.38	503	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	504	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	505	Size(bytes)
43.34	506	)))\|=(% 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	507	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	508	Temperature(DS18B20)
	509	(PC13)
40.1	510	)))\|(% style="width:83px" %)(((
43.35	511	ADC(PA5)
40.1	512	)))\|(% style="width:184px" %)(((
36.1	513	Digital Interrupt1(PA8)
40.1	514	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	515
	516	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	517
43.45	518
13.1	519	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	520
43.45	521
43.38	522	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	523	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	524	Size(bytes)
43.55	525	)))\|=(% 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	526	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	527	Temperature(DS18B20)
	528	(PC13)
	529	)))\|(% style="width:94px" %)(((
43.36	530	ADC1(PA4)
36.1	531	)))\|(% style="width:198px" %)(((
	532	Digital Interrupt(PB15)
	533	)))\|(% style="width:84px" %)(((
43.36	534	ADC2(PA5)
40.1	535	)))\|(% style="width:82px" %)(((
43.36	536	ADC3(PA8)
12.1	537	)))
	538
36.1	539	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	540
	541
13.1	542	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	543
43.45	544
43.38	545	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	546	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	547	Size(bytes)
43.56	548	)))\|=(% 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	549	\|Value\|BAT\|(((
43.58	550	Temperature
	551	(DS18B20)(PC13)
12.1	552	)))\|(((
43.58	553	Temperature2
	554	(DS18B20)(PB9)
12.1	555	)))\|(((
36.1	556	Digital Interrupt
	557	(PB15)
	558	)))\|(% style="width:193px" %)(((
43.58	559	Temperature3
	560	(DS18B20)(PB8)
36.1	561	)))\|(% style="width:78px" %)(((
43.39	562	Count1(PA8)
36.1	563	)))\|(% style="width:78px" %)(((
43.39	564	Count2(PA4)
12.1	565	)))
	566
36.1	567	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	568
43.40	569	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	570
43.44	571	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	572
43.44	573	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	574
43.44	575	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	576
	577
43.41	578	(% style="color:blue" %)AT+SETCNT=aa,bb
	579
36.1	580	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	581
36.1	582	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	583
	584
14.1	585	=== 2.3.3 Decode payload ===
	586
43.45	587
12.1	588	While using TTN V3 network, you can add the payload format to decode the payload.
	589
	590	[[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"]]
	591
	592	The payload decoder function for TTN V3 are here:
	593
44.2	594	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	595
	596
14.1	597	==== 2.3.3.1 Battery Info ====
2.1	598
43.45	599
44.2	600	Check the battery voltage for SN50v3-LB.
2.1	601
	602	Ex1: 0x0B45 = 2885mV
	603
	604	Ex2: 0x0B49 = 2889mV
	605
	606
14.1	607	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	608
43.45	609
42.1	610	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	611
43.45	612	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	613
43.41	614	(% style="color:blue" %)Connection:
14.1	615
26.2	616	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	617
43.46	618
43.41	619	(% style="color:blue" %)Example:
2.1	620
	621	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	622
	623	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	624
	625	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	626
	627
14.1	628	==== 2.3.3.3 Digital Input ====
2.1	629
43.46	630
26.2	631	The digital input for pin PB15,
2.1	632
26.2	633	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	634	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	635
26.2	636	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	637	(((
36.1	638	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	639
43.46	640	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	641
	642
26.2	643	)))
	644
14.1	645	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	646
43.46	647
36.1	648	The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
2.1	649
36.1	650	When the measured output voltage of the sensor is not within the range of 0V 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	651
26.2	652	[[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	653
44.2	654
43.46	655	(% 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	656
43.1	657
14.1	658	==== 2.3.3.5 Digital Interrupt ====
	659
43.46	660
44.2	661	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	662
43.44	663	(% style="color:blue" %) Interrupt connection method:
14.1	664
36.1	665	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	666
43.46	667
43.8	668	(% style="color:blue" %)Example to use with door sensor :
14.1	669
	670	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.
	671
	672	[[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"]]
	673
44.2	674	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	675
	676
43.46	677	(% style="color:blue" %)Below is the installation example:
	678
44.2	679	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	680
	681	* (((
44.2	682	One pin to SN50v3-LB's PA8 pin
14.1	683	)))
	684	* (((
44.2	685	The other pin to SN50v3-LB's VDD pin
14.1	686	)))
	687
36.1	688	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	689
43.46	690	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	691
36.1	692	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	693
	694	[[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"]]
	695
	696	The above photos shows the two parts of the magnetic switch fitted to a door.
	697
	698	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.
	699
	700	The command is:
	701
44.2	702	(% 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	703
	704	Below shows some screen captures in TTN V3:
	705
	706	[[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"]]
	707
43.47	708
44.4	709	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	710
	711	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	712
	713
26.2	714	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	715
43.47	716
26.2	717	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	718
40.1	719	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	720
44.2	721	(% 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	722
44.2	723
14.1	724	Below is the connection to SHT20/ SHT31. The connection is as below:
	725
40.1	726	[[image:image-20230513103633-3.png\|\|height="448" width="716"]]
36.1	727
44.4	728
14.1	729	The device will be able to get the I2C sensor data now and upload to IoT Server.
	730
	731	[[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"]]
	732
	733	Convert the read byte to decimal and divide it by ten.
	734
2.1	735	Example:
	736
14.1	737	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	738
14.1	739	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	740
14.1	741	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	742
	743
14.1	744	==== 2.3.3.7 Distance Reading ====
2.1	745
43.48	746
43.42	747	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	748
	749
	750	==== 2.3.3.8 Ultrasonic Sensor ====
	751
43.48	752
26.2	753	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	754
44.2	755	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	756
43.44	757	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	758
14.1	759	The picture below shows the connection:
	760
36.1	761	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	762
43.50	763
44.2	764	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	765
	766	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	767
	768	Example:
	769
	770	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	771
	772
	773	==== 2.3.3.9 Battery Output - BAT pin ====
	774
43.50	775
44.4	776	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	777
	778
	779	==== 2.3.3.10 +5V Output ====
	780
43.50	781
44.2	782	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	783
	784	The 5V output time can be controlled by AT Command.
	785
43.9	786	(% style="color:blue" %)AT+5VT=1000
14.1	787
	788	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	789
44.4	790	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	791
	792
	793	==== 2.3.3.11 BH1750 Illumination Sensor ====
	794
43.50	795
14.1	796	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	797
40.1	798	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	799
43.51	800
40.1	801	[[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	802
	803
	804	==== 2.3.3.12 Working MOD ====
	805
43.51	806
14.1	807	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	808
	809	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	810
	811	Case 7^^th^^ Byte >> 2 & 0x1f:
	812
	813	* 0: MOD1
	814	* 1: MOD2
	815	* 2: MOD3
	816	* 3: MOD4
	817	* 4: MOD5
	818	* 5: MOD6
36.1	819	* 6: MOD7
	820	* 7: MOD8
	821	* 8: MOD9
14.1	822
2.1	823	== 2.4 Payload Decoder file ==
	824
	825
	826	In TTN, use can add a custom payload so it shows friendly reading
	827
	828	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	829
40.1	830	[[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	831
	832
15.1	833	== 2.5 Frequency Plans ==
2.1	834
	835
15.1	836	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	837
	838	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	839
	840
16.1	841	= 3. Configure SN50v3-LB =
2.1	842
	843	== 3.1 Configure Methods ==
	844
	845
16.1	846	SN50v3-LB supports below configure method:
2.1	847
	848	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	849	* 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]].
	850	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	851
	852	== 3.2 General Commands ==
	853
	854
	855	These commands are to configure:
	856
	857	* General system settings like: uplink interval.
	858	* LoRaWAN protocol & radio related command.
	859
	860	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	861
	862	[[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/]]
	863
	864
16.1	865	== 3.3 Commands special design for SN50v3-LB ==
2.1	866
	867
44.2	868	These commands only valid for SN50v3-LB, as below:
2.1	869
	870
	871	=== 3.3.1 Set Transmit Interval Time ===
	872
43.51	873
2.1	874	Feature: Change LoRaWAN End Node Transmit Interval.
	875
	876	(% style="color:blue" %)AT Command: AT+TDC
	877
	878	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	879	\|=(% style="width: 156px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 137px;background-color:#D9E2F3" %)Function\|=(% style="background-color:#D9E2F3" %)Response
	880	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	881	30000
	882	OK
	883	the interval is 30000ms = 30s
	884	)))
	885	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	886	OK
	887	Set transmit interval to 60000ms = 60 seconds
	888	)))
	889
	890	(% style="color:blue" %)Downlink Command: 0x01
	891
	892	Format: Command Code (0x01) followed by 3 bytes time value.
	893
	894	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	895
	896	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	897	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	898
	899	=== 3.3.2 Get Device Status ===
	900
43.52	901
40.1	902	Send a LoRaWAN downlink to ask the device to send its status.
2.1	903
44.4	904	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	905
44.4	906	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	907
	908
36.1	909	=== 3.3.3 Set Interrupt Mode ===
2.1	910
43.52	911
2.1	912	Feature, Set Interrupt mode for GPIO_EXIT.
	913
36.1	914	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	915
	916	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
45.2	917	\|=(% style="width: 155px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3" %)Function\|=(% style="width: 158px;background-color:#D9E2F3" %)Response
36.1	918	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	919	0
	920	OK
	921	the mode is 0 =Disable Interrupt
	922	)))
36.1	923	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	924	Set Transmit Interval
	925	0. (Disable Interrupt),
	926	~1. (Trigger by rising and falling edge)
	927	2. (Trigger by falling edge)
	928	3. (Trigger by rising edge)
	929	)))\|(% style="width:157px" %)OK
36.1	930	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	931	Set Transmit Interval
	932	trigger by rising edge.
	933	)))\|(% style="width:157px" %)OK
	934	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	935
2.1	936	(% style="color:blue" %)Downlink Command: 0x06
	937
	938	Format: Command Code (0x06) followed by 3 bytes.
	939
	940	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	941
36.1	942	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	943	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	944	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	945	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	946
36.1	947	=== 3.3.4 Set Power Output Duration ===
	948
43.52	949
36.1	950	Control the output duration 5V . Before each sampling, device will
	951
	952	~1. first enable the power output to external sensor,
	953
	954	2. keep it on as per duration, read sensor value and construct uplink payload
	955
	956	3. final, close the power output.
	957
	958	(% style="color:blue" %)AT Command: AT+5VT
	959
	960	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
45.2	961	\|=(% style="width: 155px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3" %)Function\|=(% style="width: 158px;background-color:#D9E2F3" %)Response
36.1	962	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	963	500(default)
	964	OK
	965	)))
	966	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	967	Close after a delay of 1000 milliseconds.
	968	)))\|(% style="width:157px" %)OK
	969
	970	(% style="color:blue" %)Downlink Command: 0x07
	971
	972	Format: Command Code (0x07) followed by 2 bytes.
	973
	974	The first and second bytes are the time to turn on.
	975
40.1	976	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	977	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	978
	979	=== 3.3.5 Set Weighing parameters ===
	980
43.52	981
37.1	982	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	983
	984	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	985
	986	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
45.3	987	\|=(% style="width: 155px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3" %)Function\|=(% style="width: 158px;background-color:#D9E2F3" %)Response
37.1	988	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	989	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	990	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	991
	992	(% style="color:blue" %)Downlink Command: 0x08
	993
37.1	994	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	995
37.1	996	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	997
37.1	998	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	999
37.1	1000	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1001	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1002	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1003
36.1	1004	=== 3.3.6 Set Digital pulse count value ===
	1005
43.52	1006
36.1	1007	Feature: Set the pulse count value.
	1008
37.1	1009	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1010
36.1	1011	(% style="color:blue" %)AT Command: AT+SETCNT
	1012
	1013	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
45.3	1014	\|=(% style="width: 155px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3" %)Function\|=(% style="width: 158px;background-color:#D9E2F3" %)Response
36.1	1015	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1016	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1017
	1018	(% style="color:blue" %)Downlink Command: 0x09
	1019
	1020	Format: Command Code (0x09) followed by 5 bytes.
	1021
	1022	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1023
	1024	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1025	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1026
	1027	=== 3.3.7 Set Workmode ===
	1028
43.52	1029
37.1	1030	Feature: Switch working mode.
36.1	1031
	1032	(% style="color:blue" %)AT Command: AT+MOD
	1033
	1034	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
45.3	1035	\|=(% style="width: 155px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3" %)Function\|=(% style="width: 158px;background-color:#D9E2F3" %)Response
36.1	1036	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1037	OK
	1038	)))
	1039	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1040	OK
	1041	Attention:Take effect after ATZ
	1042	)))
	1043
	1044	(% style="color:blue" %)Downlink Command: 0x0A
	1045
	1046	Format: Command Code (0x0A) followed by 1 bytes.
	1047
	1048	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1049	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1050
2.1	1051	= 4. Battery & Power Consumption =
	1052
	1053
11.1	1054	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1055
	1056	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1057
	1058
	1059	= 5. OTA Firmware update =
	1060
	1061
	1062	(% class="wikigeneratedid" %)
44.4	1063	User can change firmware SN50v3-LB to:
2.1	1064
	1065	* Change Frequency band/ region.
	1066	* Update with new features.
	1067	* Fix bugs.
	1068
44.4	1069	Firmware and changelog can be downloaded from : [[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]
2.1	1070
44.4	1071	Methods to Update Firmware:
2.1	1072
	1073	* (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/]]
	1074	* 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]].
	1075
	1076	= 6. FAQ =
	1077
17.1	1078	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1079
43.52	1080
17.1	1081	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1082	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1083
	1084	= 7. Order Info =
	1085
	1086
10.1	1087	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1088
	1089	(% style="color:red" %)XX(%%): The default frequency band
11.1	1090
2.1	1091	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1092	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1093	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1094	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1095	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1096	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1097	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1098	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1099
10.1	1100	(% style="color:red" %)YY: (%%)Hole Option
2.1	1101
10.1	1102	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1103	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1104	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1105	* (% style="color:red" %)NH(%%): No Hole
	1106
2.1	1107	= 8. Packing Info =
	1108
43.52	1109
2.1	1110	(% style="color:#037691" %)Package Includes:
	1111
10.1	1112	* SN50v3-LB LoRaWAN Generic Node
2.1	1113
	1114	(% style="color:#037691" %)Dimension and weight:
	1115
	1116	* Device Size: cm
	1117	* Device Weight: g
	1118	* Package Size / pcs : cm
	1119	* Weight / pcs : g
	1120
	1121	= 9. Support =
	1122
	1123
	1124	* 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	1125
41.4	1126	* 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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