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

Version 44.2 by Xiaoling on 2023/05/18 08:57

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
36.1	126	[[image:image-20230513102034-2.png]]
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
5.1	139	== Hole Option ==
	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
11.2	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 S31x-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
	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.
	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
11.2	211	Users can use the downlink command(0x26 01) to ask SN50v3 to send device configure detail, include device configure status. SN50v3 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
	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
	220
	221	Example parse in TTNv3
	222
	223
11.2	224	(% style="color:#037691" %)Sensor Model(%%): For SN50v3, 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
44.2	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 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
40.1	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
43.45	318
13.1	319	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	320
43.45	321
12.1	322	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.
	323
43.14	324	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	325	\|(% 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
40.1	326	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	327	Temperature(DS18B20)(PC13)
40.1	328	)))\|(% style="width:87px" %)(((
43.16	329	ADC(PA4)
40.1	330	)))\|(% style="width:189px" %)(((
43.16	331	Digital in(PB15) & Digital Interrupt(PA8)
40.1	332	)))\|(% style="width:208px" %)(((
43.16	333	Distance measure by:1) LIDAR-Lite V3HP
43.60	334	Or
43.54	335	2) Ultrasonic Sensor
40.1	336	)))\|(% style="width:117px" %)Reserved
12.1	337
	338	[[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"]]
	339
43.45	340
43.17	341	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	342
26.2	343	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	344
43.45	345
43.17	346	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	347
44.1	348	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	349
26.2	350	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	351
43.45	352
12.1	353	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	354
43.19	355	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	356	\|(% 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
40.1	357	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	358	Temperature(DS18B20)(PC13)
40.1	359	)))\|(% style="width:173px" %)(((
43.19	360	Digital in(PB15) & Digital Interrupt(PA8)
40.1	361	)))\|(% style="width:84px" %)(((
43.19	362	ADC(PA4)
40.1	363	)))\|(% style="width:323px" %)(((
12.1	364	Distance measure by:1)TF-Mini plus LiDAR
43.22	365	Or
	366	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
36.1	383	[[image:image-20230513105207-4.png\|\|height="469" width="802"]]
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
26.2	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
26.2	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
39.2	430	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	431
39.1	432
43.45	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
40.1	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
36.1	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
43.45	501
13.1	502	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	503
43.45	504
43.38	505	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	506	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	507	Size(bytes)
43.34	508	)))\|=(% 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
40.1	509	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	510	Temperature(DS18B20)
	511	(PC13)
40.1	512	)))\|(% style="width:83px" %)(((
43.35	513	ADC(PA5)
40.1	514	)))\|(% style="width:184px" %)(((
36.1	515	Digital Interrupt1(PA8)
40.1	516	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	517
	518	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	519
43.45	520
13.1	521	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	522
43.45	523
43.38	524	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	525	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	526	Size(bytes)
43.55	527	)))\|=(% 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
36.1	528	\|Value\|BAT\|(% style="width:207px" %)(((
	529	Temperature(DS18B20)
	530	(PC13)
	531	)))\|(% style="width:94px" %)(((
43.36	532	ADC1(PA4)
36.1	533	)))\|(% style="width:198px" %)(((
	534	Digital Interrupt(PB15)
	535	)))\|(% style="width:84px" %)(((
43.36	536	ADC2(PA5)
40.1	537	)))\|(% style="width:82px" %)(((
43.36	538	ADC3(PA8)
12.1	539	)))
	540
36.1	541	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	542
	543
13.1	544	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	545
43.45	546
43.38	547	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	548	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	549	Size(bytes)
43.56	550	)))\|=(% 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
12.1	551	\|Value\|BAT\|(((
43.58	552	Temperature
	553	(DS18B20)(PC13)
12.1	554	)))\|(((
43.58	555	Temperature2
	556	(DS18B20)(PB9)
12.1	557	)))\|(((
36.1	558	Digital Interrupt
	559	(PB15)
	560	)))\|(% style="width:193px" %)(((
43.58	561	Temperature3
	562	(DS18B20)(PB8)
36.1	563	)))\|(% style="width:78px" %)(((
43.39	564	Count1(PA8)
36.1	565	)))\|(% style="width:78px" %)(((
43.39	566	Count2(PA4)
12.1	567	)))
	568
36.1	569	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	570
43.40	571	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	572
43.44	573	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	574
43.44	575	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	576
43.44	577	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	578
	579
43.41	580	(% style="color:blue" %)AT+SETCNT=aa,bb
	581
36.1	582	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	583
36.1	584	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	585
	586
14.1	587	=== 2.3.3 Decode payload ===
	588
43.45	589
12.1	590	While using TTN V3 network, you can add the payload format to decode the payload.
	591
	592	[[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"]]
	593
	594	The payload decoder function for TTN V3 are here:
	595
44.2	596	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	597
	598
14.1	599	==== 2.3.3.1 Battery Info ====
2.1	600
43.45	601
44.2	602	Check the battery voltage for SN50v3-LB.
2.1	603
	604	Ex1: 0x0B45 = 2885mV
	605
	606	Ex2: 0x0B49 = 2889mV
	607
	608
14.1	609	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	610
43.45	611
42.1	612	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	613
43.45	614	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	615
43.41	616	(% style="color:blue" %)Connection:
14.1	617
26.2	618	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	619
43.46	620
43.41	621	(% style="color:blue" %)Example:
2.1	622
	623	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	624
	625	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	626
	627	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	628
	629
14.1	630	==== 2.3.3.3 Digital Input ====
2.1	631
43.46	632
26.2	633	The digital input for pin PB15,
2.1	634
26.2	635	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	636	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	637
26.2	638	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	639	(((
36.1	640	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	641
43.46	642	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	643
	644
26.2	645	)))
	646
14.1	647	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	648
43.46	649
36.1	650	The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
2.1	651
36.1	652	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	653
26.2	654	[[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	655
44.2	656
43.46	657	(% 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	658
43.1	659
14.1	660	==== 2.3.3.5 Digital Interrupt ====
	661
43.46	662
44.2	663	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	664
43.44	665	(% style="color:blue" %) Interrupt connection method:
14.1	666
36.1	667	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	668
43.46	669
43.8	670	(% style="color:blue" %)Example to use with door sensor :
14.1	671
	672	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.
	673
	674	[[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"]]
	675
44.2	676	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	677
	678
43.46	679	(% style="color:blue" %)Below is the installation example:
	680
44.2	681	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	682
	683	* (((
44.2	684	One pin to SN50v3-LB's PA8 pin
14.1	685	)))
	686	* (((
44.2	687	The other pin to SN50v3-LB's VDD pin
14.1	688	)))
	689
36.1	690	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	691
43.46	692	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	693
36.1	694	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	695
	696	[[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"]]
	697
	698	The above photos shows the two parts of the magnetic switch fitted to a door.
	699
	700	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.
	701
	702	The command is:
	703
44.2	704	(% 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	705
	706	Below shows some screen captures in TTN V3:
	707
	708	[[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"]]
	709
43.47	710
14.1	711	In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
	712
	713	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	714
	715
26.2	716	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	717
43.47	718
26.2	719	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	720
40.1	721	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	722
44.2	723	(% 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	724
44.2	725
14.1	726	Below is the connection to SHT20/ SHT31. The connection is as below:
	727
40.1	728	[[image:image-20230513103633-3.png\|\|height="448" width="716"]]
36.1	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
14.1	777	The BAT pin of SN50v3 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.
	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
	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.
	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
2.1	824	== 2.4 Payload Decoder file ==
	825
	826
	827	In TTN, use can add a custom payload so it shows friendly reading
	828
	829	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	830
40.1	831	[[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	832
	833
15.1	834	== 2.5 Frequency Plans ==
2.1	835
	836
15.1	837	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	838
	839	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	840
	841
16.1	842	= 3. Configure SN50v3-LB =
2.1	843
	844	== 3.1 Configure Methods ==
	845
	846
16.1	847	SN50v3-LB supports below configure method:
2.1	848
	849	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	850	* 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]].
	851	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	852
	853	== 3.2 General Commands ==
	854
	855
	856	These commands are to configure:
	857
	858	* General system settings like: uplink interval.
	859	* LoRaWAN protocol & radio related command.
	860
	861	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	862
	863	[[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/]]
	864
	865
16.1	866	== 3.3 Commands special design for SN50v3-LB ==
2.1	867
	868
44.2	869	These commands only valid for SN50v3-LB, as below:
2.1	870
	871
	872	=== 3.3.1 Set Transmit Interval Time ===
	873
43.51	874
2.1	875	Feature: Change LoRaWAN End Node Transmit Interval.
	876
	877	(% style="color:blue" %)AT Command: AT+TDC
	878
	879	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	880	\|=(% style="width: 156px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 137px;background-color:#D9E2F3" %)Function\|=(% style="background-color:#D9E2F3" %)Response
	881	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	882	30000
	883	OK
	884	the interval is 30000ms = 30s
	885	)))
	886	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	887	OK
	888	Set transmit interval to 60000ms = 60 seconds
	889	)))
	890
	891	(% style="color:blue" %)Downlink Command: 0x01
	892
	893	Format: Command Code (0x01) followed by 3 bytes time value.
	894
	895	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	896
	897	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	898	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	899
	900	=== 3.3.2 Get Device Status ===
	901
43.52	902
40.1	903	Send a LoRaWAN downlink to ask the device to send its status.
2.1	904
	905	(% style="color:blue" %)Downlink Payload: (%%)0x26 01
	906
	907	Sensor will upload Device Status via FPORT=5. See payload section for detail.
	908
	909
36.1	910	=== 3.3.3 Set Interrupt Mode ===
2.1	911
43.52	912
2.1	913	Feature, Set Interrupt mode for GPIO_EXIT.
	914
36.1	915	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	916
	917	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	918	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
36.1	919	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	920	0
	921	OK
	922	the mode is 0 =Disable Interrupt
	923	)))
36.1	924	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	925	Set Transmit Interval
	926	0. (Disable Interrupt),
	927	~1. (Trigger by rising and falling edge)
	928	2. (Trigger by falling edge)
	929	3. (Trigger by rising edge)
	930	)))\|(% style="width:157px" %)OK
36.1	931	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	932	Set Transmit Interval
	933	trigger by rising edge.
	934	)))\|(% style="width:157px" %)OK
	935	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	936
2.1	937	(% style="color:blue" %)Downlink Command: 0x06
	938
	939	Format: Command Code (0x06) followed by 3 bytes.
	940
	941	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	942
36.1	943	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	944	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	945	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	946	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	947
36.1	948	=== 3.3.4 Set Power Output Duration ===
	949
43.52	950
36.1	951	Control the output duration 5V . Before each sampling, device will
	952
	953	~1. first enable the power output to external sensor,
	954
	955	2. keep it on as per duration, read sensor value and construct uplink payload
	956
	957	3. final, close the power output.
	958
	959	(% style="color:blue" %)AT Command: AT+5VT
	960
	961	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	962	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
	963	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	964	500(default)
	965	OK
	966	)))
	967	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	968	Close after a delay of 1000 milliseconds.
	969	)))\|(% style="width:157px" %)OK
	970
	971	(% style="color:blue" %)Downlink Command: 0x07
	972
	973	Format: Command Code (0x07) followed by 2 bytes.
	974
	975	The first and second bytes are the time to turn on.
	976
40.1	977	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	978	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	979
	980	=== 3.3.5 Set Weighing parameters ===
	981
43.52	982
37.1	983	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	984
	985	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	986
	987	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	988	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
37.1	989	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	990	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	991	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	992
	993	(% style="color:blue" %)Downlink Command: 0x08
	994
37.1	995	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	996
37.1	997	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	998
37.1	999	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1000
37.1	1001	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1002	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1003	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1004
36.1	1005	=== 3.3.6 Set Digital pulse count value ===
	1006
43.52	1007
36.1	1008	Feature: Set the pulse count value.
	1009
37.1	1010	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1011
36.1	1012	(% style="color:blue" %)AT Command: AT+SETCNT
	1013
	1014	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1015	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
	1016	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1017	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1018
	1019	(% style="color:blue" %)Downlink Command: 0x09
	1020
	1021	Format: Command Code (0x09) followed by 5 bytes.
	1022
	1023	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1024
	1025	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1026	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1027
	1028	=== 3.3.7 Set Workmode ===
	1029
43.52	1030
37.1	1031	Feature: Switch working mode.
36.1	1032
	1033	(% style="color:blue" %)AT Command: AT+MOD
	1034
	1035	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1036	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
	1037	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1038	OK
	1039	)))
	1040	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1041	OK
	1042	Attention:Take effect after ATZ
	1043	)))
	1044
	1045	(% style="color:blue" %)Downlink Command: 0x0A
	1046
	1047	Format: Command Code (0x0A) followed by 1 bytes.
	1048
	1049	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1050	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1051
2.1	1052	= 4. Battery & Power Consumption =
	1053
	1054
11.1	1055	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1056
	1057	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1058
	1059
	1060	= 5. OTA Firmware update =
	1061
	1062
	1063	(% class="wikigeneratedid" %)
11.1	1064	User can change firmware SN50v3-LB to:
2.1	1065
	1066	* Change Frequency band/ region.
	1067	* Update with new features.
	1068	* Fix bugs.
	1069
	1070	Firmware and changelog can be downloaded from : [[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]
	1071
	1072
	1073	Methods to Update Firmware:
	1074
	1075	* (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/]]
	1076	* 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]].
	1077
	1078	= 6. FAQ =
	1079
17.1	1080	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1081
43.52	1082
17.1	1083	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1084	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1085
	1086	= 7. Order Info =
	1087
	1088
10.1	1089	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1090
	1091	(% style="color:red" %)XX(%%): The default frequency band
11.1	1092
2.1	1093	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1094	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1095	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1096	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1097	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1098	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1099	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1100	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1101
10.1	1102	(% style="color:red" %)YY: (%%)Hole Option
2.1	1103
10.1	1104	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1105	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1106	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1107	* (% style="color:red" %)NH(%%): No Hole
	1108
2.1	1109	= 8. Packing Info =
	1110
43.52	1111
2.1	1112	(% style="color:#037691" %)Package Includes:
	1113
10.1	1114	* SN50v3-LB LoRaWAN Generic Node
2.1	1115
	1116	(% style="color:#037691" %)Dimension and weight:
	1117
	1118	* Device Size: cm
	1119	* Device Weight: g
	1120	* Package Size / pcs : cm
	1121	* Weight / pcs : g
	1122
	1123	= 9. Support =
	1124
	1125
	1126	* 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	1127
41.4	1128	* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.cc>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.cc]]

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

Applications