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

Version 52.4 by Xiaoling on 2023/06/12 10:39

version	line-number	content
41.2	1	(% style="text-align:center" %)
	2	[[image:image-20230515135611-1.jpeg\|\|height="589" width="589"]]
2.1	3
	4
	5
	6	Table of Contents：
	7
	8	{{toc/}}
	9
	10
	11
	12
	13
	14
	15	= 1. Introduction =
	16
5.1	17	== 1.1 What is SN50v3-LB LoRaWAN Generic Node ==
2.1	18
43.2	19
4.1	20	(% style="color:blue" %)SN50V3-LB (%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %) 8500mA Li/SOCl2 battery(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.
2.1	21
4.1	22	(% style="color:blue" %)SN50V3-LB wireless part(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
2.1	23
4.1	24	(% style="color:blue" %)SN50V3-LB (%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors.
2.1	25
4.1	26	(% style="color:blue" %)SN50V3-LB(%%) has a built-in BLE module, user can configure the sensor remotely via Mobile Phone. It also support OTA upgrade via private LoRa protocol for easy maintaining.
2.1	27
4.1	28	SN50V3-LB is the 3^^rd^^ generation of LSN50 series generic sensor node from Dragino. It is an (% style="color:blue" %)open source project(%%) and has a mature LoRaWAN stack and application software. User can use the pre-load software for their IoT projects or easily customize the software for different requirements.
2.1	29
4.1	30
2.1	31	== 1.2 Features ==
	32
43.44	33
2.1	34	* LoRaWAN 1.0.3 Class A
	35	* Ultra-low power consumption
5.1	36	* Open-Source hardware/software
2.1	37	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	38	* Support Bluetooth v5.1 and LoRaWAN remote configure
	39	* Support wireless OTA update firmware
	40	* Uplink on periodically
	41	* Downlink to change configure
	42	* 8500mAh Battery for long term use
	43
52.4	44
	45
2.1	46	== 1.3 Specification ==
	47
43.4	48
2.1	49	(% style="color:#037691" %)Common DC Characteristics:
	50
	51	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	52	* Operating Temperature: -40 ~~ 85°C
	53
5.1	54	(% style="color:#037691" %)I/O Interface:
2.1	55
5.1	56	* Battery output (2.6v ~~ 3.6v depends on battery)
	57	* +5v controllable output
	58	* 3 x Interrupt or Digital IN/OUT pins
	59	* 3 x one-wire interfaces
	60	* 1 x UART Interface
	61	* 1 x I2C Interface
2.1	62
	63	(% style="color:#037691" %)LoRa Spec:
	64
	65	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	66	* Max +22 dBm constant RF output vs.
	67	* RX sensitivity: down to -139 dBm.
	68	* Excellent blocking immunity
	69
	70	(% style="color:#037691" %)Battery:
	71
	72	* Li/SOCI2 un-chargeable battery
	73	* Capacity: 8500mAh
	74	* Self-Discharge: <1% / Year @ 25°C
	75	* Max continuously current: 130mA
	76	* Max boost current: 2A, 1 second
	77
	78	(% style="color:#037691" %)Power Consumption
	79
	80	* Sleep Mode: 5uA @ 3.3v
	81	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	82
52.4	83
	84
2.1	85	== 1.4 Sleep mode and working mode ==
	86
43.4	87
2.1	88	(% 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.
	89
	90	(% 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.
	91
	92
	93	== 1.5 Button & LEDs ==
	94
	95
	96	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
	97
	98
	99	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	100	\|=(% 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
	101	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	102	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	103	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	104	)))
	105	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	106	(% 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.
	107	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	108	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.
	109	)))
	110	\|(% 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.
	111
52.4	112
	113
2.1	114	== 1.6 BLE connection ==
	115
	116
5.1	117	SN50v3-LB supports BLE remote configure.
2.1	118
	119
	120	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:
	121
	122	* Press button to send an uplink
	123	* Press button to active device.
	124	* Device Power on or reset.
	125
	126	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	127
	128
6.1	129	== 1.7 Pin Definitions ==
2.1	130
	131
49.1	132	[[image:image-20230610163213-1.png\|\|height="404" width="699"]]
2.1	133
	134
	135	== 1.8 Mechanical ==
	136
	137
	138	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
	139
	140	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
	141
	142	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	143
	144
44.5	145	== 1.9 Hole Option ==
5.1	146
43.4	147
5.1	148	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:
	149
	150	[[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"]]
	151
	152	[[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"]]
	153
	154
10.1	155	= 2. Configure SN50v3-LB to connect to LoRaWAN network =
2.1	156
	157	== 2.1 How it works ==
	158
	159
44.3	160	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	161
	162
	163	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	164
	165
	166	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.
	167
44.3	168	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	169
	170
11.2	171	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.
2.1	172
11.2	173	Each SN50v3-LB is shipped with a sticker with the default device EUI as below:
2.1	174
11.2	175	[[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	176
	177
	178	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	179
	180
	181	(% style="color:blue" %)Register the device
	182
	183	[[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"]]
	184
	185
	186	(% style="color:blue" %)Add APP EUI and DEV EUI
	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-20220611161308-4.png?width=753&height=551&rev=1.1\|\|alt="图片-20220611161308-4.png"]]
	189
	190
	191	(% style="color:blue" %)Add APP EUI in the application
	192
	193
	194	[[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"]]
	195
	196
	197	(% style="color:blue" %)Add APP KEY
	198
	199	[[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"]]
	200
	201
11.2	202	(% style="color:blue" %)Step 2:(%%) Activate SN50v3-LB
2.1	203
	204
11.2	205	Press the button for 5 seconds to activate the SN50v3-LB.
2.1	206
	207	(% 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.
	208
	209	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	210
	211
	212	== 2.3 Uplink Payload ==
	213
	214	=== 2.3.1 Device Status, FPORT~=5 ===
	215
	216
44.3	217	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	218
	219	The Payload format is as below.
	220
	221
	222	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	223	\|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)Device Status (FPORT=5)
	224	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
45.4	225	\|(% 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	226
	227	Example parse in TTNv3
	228
	229
44.3	230	(% style="color:#037691" %)Sensor Model(%%): For SN50v3-LB, this value is 0x1C
2.1	231
	232	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
	233
	234	(% style="color:#037691" %)Frequency Band:
	235
	236	*0x01: EU868
	237
	238	*0x02: US915
	239
	240	*0x03: IN865
	241
	242	*0x04: AU915
	243
	244	*0x05: KZ865
	245
	246	*0x06: RU864
	247
	248	*0x07: AS923
	249
	250	*0x08: AS923-1
	251
	252	*0x09: AS923-2
	253
	254	*0x0a: AS923-3
	255
	256	*0x0b: CN470
	257
	258	*0x0c: EU433
	259
	260	*0x0d: KR920
	261
	262	*0x0e: MA869
	263
	264
	265	(% style="color:#037691" %)Sub-Band:
	266
	267	AU915 and US915:value 0x00 ~~ 0x08
	268
	269	CN470: value 0x0B ~~ 0x0C
	270
	271	Other Bands: Always 0x00
	272
	273
	274	(% style="color:#037691" %)Battery Info:
	275
	276	Check the battery voltage.
	277
	278	Ex1: 0x0B45 = 2885mV
	279
	280	Ex2: 0x0B49 = 2889mV
	281
	282
12.1	283	=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===
2.1	284
	285
44.2	286	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	287
	288	For example:
	289
44.2	290	(% 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	291
	292
13.1	293	(% style="color:red" %) Important Notice:
12.1	294
44.3	295	~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	296
44.2	297	2. All modes share the same Payload Explanation from HERE.
43.53	298
44.2	299	3. By default, the device will send an uplink message every 20 minutes.
	300
	301
13.1	302	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	303
43.5	304
12.1	305	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	306
43.5	307	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	308	\|(% 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	309	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	310	Temperature(DS18B20)(PC13)
40.1	311	)))\|(% style="width:78px" %)(((
43.12	312	ADC(PA4)
26.2	313	)))\|(% style="width:216px" %)(((
43.13	314	Digital in(PB15)&Digital Interrupt(PA8)
40.1	315	)))\|(% style="width:308px" %)(((
43.12	316	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	317	)))\|(% style="width:154px" %)(((
43.12	318	Humidity(SHT20 or SHT31)
36.1	319	)))
	320
12.1	321	[[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"]]
	322
	323
13.1	324	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	325
43.45	326
12.1	327	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.
	328
43.14	329	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	330	\|(% 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	331	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	332	Temperature(DS18B20)(PC13)
40.1	333	)))\|(% style="width:87px" %)(((
43.16	334	ADC(PA4)
40.1	335	)))\|(% style="width:189px" %)(((
43.16	336	Digital in(PB15) & Digital Interrupt(PA8)
40.1	337	)))\|(% style="width:208px" %)(((
43.16	338	Distance measure by:1) LIDAR-Lite V3HP
43.60	339	Or
43.54	340	2) Ultrasonic Sensor
40.1	341	)))\|(% style="width:117px" %)Reserved
12.1	342
	343	[[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"]]
	344
43.45	345
43.17	346	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	347
26.2	348	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	349
43.45	350
43.17	351	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	352
44.1	353	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	354
26.2	355	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	356
43.45	357
12.1	358	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	359
43.19	360	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	361	\|(% 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	362	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	363	Temperature(DS18B20)(PC13)
40.1	364	)))\|(% style="width:173px" %)(((
43.19	365	Digital in(PB15) & Digital Interrupt(PA8)
40.1	366	)))\|(% style="width:84px" %)(((
43.19	367	ADC(PA4)
40.1	368	)))\|(% style="width:323px" %)(((
12.1	369	Distance measure by:1)TF-Mini plus LiDAR
43.22	370	Or
	371	2) TF-Luna LiDAR
40.1	372	)))\|(% style="width:188px" %)Distance signal strength
12.1	373
	374	[[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"]]
	375
43.45	376
12.1	377	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	378
44.1	379	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	380
26.2	381	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	382
43.45	383
12.1	384	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	385
44.1	386	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	387
52.1	388	[[image:image-20230610170047-1.png\|\|height="452" width="799"]]
12.1	389
	390
13.1	391	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	392
43.45	393
12.1	394	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	395
43.21	396	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	397	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	398	Size(bytes)
43.54	399	)))\|=(% 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	400	\|Value\|(% style="width:68px" %)(((
43.23	401	ADC1(PA4)
26.2	402	)))\|(% style="width:75px" %)(((
43.23	403	ADC2(PA5)
36.1	404	)))\|(((
43.23	405	ADC3(PA8)
36.1	406	)))\|(((
	407	Digital Interrupt(PB15)
	408	)))\|(% style="width:304px" %)(((
43.23	409	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	410	)))\|(% style="width:163px" %)(((
43.23	411	Humidity(SHT20 or SHT31)
36.1	412	)))\|(% style="width:53px" %)Bat
	413
	414	[[image:image-20230513110214-6.png]]
	415
	416
13.1	417	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	418
12.1	419
26.2	420	This mode has total 11 bytes. As shown below:
12.1	421
43.26	422	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	423	\|(% 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	424	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	425	Temperature1(DS18B20)(PC13)
26.2	426	)))\|(% style="width:82px" %)(((
43.27	427	ADC(PA4)
26.2	428	)))\|(% style="width:210px" %)(((
43.27	429	Digital in(PB15) & Digital Interrupt(PA8)
26.2	430	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	431	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	432
	433	[[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"]]
	434
44.4	435
39.2	436	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	437
39.1	438
13.1	439	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	440
43.45	441
26.2	442	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	443
	444	Each HX711 need to be calibrated before used. User need to do below two steps:
	445
44.2	446	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)AT+WEIGRE(%%) to calibrate to Zero gram.
	447	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	448	1. (((
26.2	449	Weight has 4 bytes, the unit is g.
43.53	450
	451
	452
12.1	453	)))
	454
	455	For example:
	456
44.2	457	(% style="color:blue" %)AT+GETSENSORVALUE =0
12.1	458
	459	Response: Weight is 401 g
	460
	461	Check the response of this command and adjust the value to match the real value for thing.
	462
43.29	463	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	464	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	465	Size(bytes)
43.30	466	)))\|=(% 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	467	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	468	Temperature(DS18B20)(PC13)
40.1	469	)))\|(% style="width:85px" %)(((
43.31	470	ADC(PA4)
40.1	471	)))\|(% style="width:186px" %)(((
43.55	472	Digital in(PB15) & Digital Interrupt(PA8)
40.1	473	)))\|(% style="width:100px" %)Weight
26.2	474
12.1	475	[[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"]]
	476
	477
43.45	478
13.1	479	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	480
43.45	481
12.1	482	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.
	483
	484	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.
	485
26.2	486	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	487
43.53	488
43.45	489	(% 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	490
43.38	491	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	492	\|=(% 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	493	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	494	Temperature(DS18B20)(PC13)
36.1	495	)))\|(% style="width:108px" %)(((
43.31	496	ADC(PA4)
36.1	497	)))\|(% style="width:126px" %)(((
43.31	498	Digital in(PB15)
36.1	499	)))\|(% style="width:145px" %)(((
43.31	500	Count(PA8)
36.1	501	)))
	502
12.1	503	[[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"]]
	504
	505
13.1	506	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	507
43.45	508
43.38	509	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	510	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	511	Size(bytes)
43.34	512	)))\|=(% 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	513	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	514	Temperature(DS18B20)
	515	(PC13)
40.1	516	)))\|(% style="width:83px" %)(((
43.35	517	ADC(PA5)
40.1	518	)))\|(% style="width:184px" %)(((
36.1	519	Digital Interrupt1(PA8)
40.1	520	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	521
	522	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	523
43.45	524
13.1	525	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	526
43.45	527
43.38	528	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	529	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	530	Size(bytes)
43.55	531	)))\|=(% 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	532	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	533	Temperature(DS18B20)
	534	(PC13)
	535	)))\|(% style="width:94px" %)(((
43.36	536	ADC1(PA4)
36.1	537	)))\|(% style="width:198px" %)(((
	538	Digital Interrupt(PB15)
	539	)))\|(% style="width:84px" %)(((
43.36	540	ADC2(PA5)
40.1	541	)))\|(% style="width:82px" %)(((
43.36	542	ADC3(PA8)
12.1	543	)))
	544
36.1	545	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	546
	547
13.1	548	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	549
43.45	550
43.38	551	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	552	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	553	Size(bytes)
43.56	554	)))\|=(% 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	555	\|Value\|BAT\|(((
43.58	556	Temperature
	557	(DS18B20)(PC13)
12.1	558	)))\|(((
43.58	559	Temperature2
	560	(DS18B20)(PB9)
12.1	561	)))\|(((
36.1	562	Digital Interrupt
	563	(PB15)
	564	)))\|(% style="width:193px" %)(((
43.58	565	Temperature3
	566	(DS18B20)(PB8)
36.1	567	)))\|(% style="width:78px" %)(((
43.39	568	Count1(PA8)
36.1	569	)))\|(% style="width:78px" %)(((
43.39	570	Count2(PA4)
12.1	571	)))
	572
36.1	573	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	574
43.40	575	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	576
43.44	577	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	578
43.44	579	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	580
43.44	581	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	582
	583
43.41	584	(% style="color:blue" %)AT+SETCNT=aa,bb
	585
36.1	586	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	587
36.1	588	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	589
	590
14.1	591	=== 2.3.3 Decode payload ===
	592
43.45	593
12.1	594	While using TTN V3 network, you can add the payload format to decode the payload.
	595
	596	[[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"]]
	597
	598	The payload decoder function for TTN V3 are here:
	599
44.2	600	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	601
	602
14.1	603	==== 2.3.3.1 Battery Info ====
2.1	604
43.45	605
44.2	606	Check the battery voltage for SN50v3-LB.
2.1	607
	608	Ex1: 0x0B45 = 2885mV
	609
	610	Ex2: 0x0B49 = 2889mV
	611
	612
14.1	613	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	614
43.45	615
42.1	616	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	617
43.45	618	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	619
43.41	620	(% style="color:blue" %)Connection:
14.1	621
26.2	622	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	623
43.46	624
43.41	625	(% style="color:blue" %)Example:
2.1	626
	627	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	628
	629	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	630
	631	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	632
	633
14.1	634	==== 2.3.3.3 Digital Input ====
2.1	635
43.46	636
26.2	637	The digital input for pin PB15,
2.1	638
26.2	639	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	640	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	641
26.2	642	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	643	(((
36.1	644	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	645
43.46	646	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	647
	648
26.2	649	)))
	650
14.1	651	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	652
43.46	653
36.1	654	The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
2.1	655
36.1	656	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	657
26.2	658	[[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	659
44.2	660
43.46	661	(% 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	662
43.1	663
14.1	664	==== 2.3.3.5 Digital Interrupt ====
	665
43.46	666
44.2	667	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	668
43.44	669	(% style="color:blue" %) Interrupt connection method:
14.1	670
36.1	671	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	672
43.46	673
43.8	674	(% style="color:blue" %)Example to use with door sensor :
14.1	675
	676	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.
	677
	678	[[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"]]
	679
44.2	680	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	681
	682
43.46	683	(% style="color:blue" %)Below is the installation example:
	684
44.2	685	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	686
	687	* (((
44.2	688	One pin to SN50v3-LB's PA8 pin
14.1	689	)))
	690	* (((
44.2	691	The other pin to SN50v3-LB's VDD pin
14.1	692	)))
	693
36.1	694	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	695
43.46	696	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	697
36.1	698	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	699
	700	[[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"]]
	701
	702	The above photos shows the two parts of the magnetic switch fitted to a door.
	703
	704	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.
	705
	706	The command is:
	707
44.2	708	(% 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	709
	710	Below shows some screen captures in TTN V3:
	711
	712	[[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"]]
	713
43.47	714
44.4	715	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	716
	717	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	718
	719
26.2	720	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	721
43.47	722
26.2	723	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	724
40.1	725	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	726
44.2	727	(% 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	728
44.2	729
14.1	730	Below is the connection to SHT20/ SHT31. The connection is as below:
	731
52.1	732	[[image:image-20230610170152-2.png\|\|height="501" width="846"]]
36.1	733
44.4	734
14.1	735	The device will be able to get the I2C sensor data now and upload to IoT Server.
	736
	737	[[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"]]
	738
	739	Convert the read byte to decimal and divide it by ten.
	740
2.1	741	Example:
	742
14.1	743	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	744
14.1	745	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	746
14.1	747	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	748
	749
14.1	750	==== 2.3.3.7 Distance Reading ====
2.1	751
43.48	752
43.42	753	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	754
	755
	756	==== 2.3.3.8 Ultrasonic Sensor ====
	757
43.48	758
26.2	759	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	760
44.2	761	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	762
43.44	763	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	764
14.1	765	The picture below shows the connection:
	766
36.1	767	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	768
43.50	769
44.2	770	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	771
	772	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	773
	774	Example:
	775
	776	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	777
	778
	779	==== 2.3.3.9 Battery Output - BAT pin ====
	780
43.50	781
44.4	782	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	783
	784
	785	==== 2.3.3.10 +5V Output ====
	786
43.50	787
44.2	788	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	789
	790	The 5V output time can be controlled by AT Command.
	791
43.9	792	(% style="color:blue" %)AT+5VT=1000
14.1	793
	794	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	795
44.4	796	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	797
	798
	799	==== 2.3.3.11 BH1750 Illumination Sensor ====
	800
43.50	801
14.1	802	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	803
40.1	804	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	805
43.51	806
40.1	807	[[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	808
	809
	810	==== 2.3.3.12 Working MOD ====
	811
43.51	812
14.1	813	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	814
	815	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	816
	817	Case 7^^th^^ Byte >> 2 & 0x1f:
	818
	819	* 0: MOD1
	820	* 1: MOD2
	821	* 2: MOD3
	822	* 3: MOD4
	823	* 4: MOD5
	824	* 5: MOD6
36.1	825	* 6: MOD7
	826	* 7: MOD8
	827	* 8: MOD9
14.1	828
52.4	829
	830
2.1	831	== 2.4 Payload Decoder file ==
	832
	833
	834	In TTN, use can add a custom payload so it shows friendly reading
	835
	836	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	837
40.1	838	[[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	839
	840
15.1	841	== 2.5 Frequency Plans ==
2.1	842
	843
15.1	844	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	845
	846	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	847
	848
16.1	849	= 3. Configure SN50v3-LB =
2.1	850
	851	== 3.1 Configure Methods ==
	852
	853
16.1	854	SN50v3-LB supports below configure method:
2.1	855
	856	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	857	* 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]].
	858	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	859
52.4	860
	861
2.1	862	== 3.2 General Commands ==
	863
	864
	865	These commands are to configure:
	866
	867	* General system settings like: uplink interval.
	868	* LoRaWAN protocol & radio related command.
	869
	870	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	871
	872	[[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/]]
	873
	874
16.1	875	== 3.3 Commands special design for SN50v3-LB ==
2.1	876
	877
44.2	878	These commands only valid for SN50v3-LB, as below:
2.1	879
	880
	881	=== 3.3.1 Set Transmit Interval Time ===
	882
43.51	883
2.1	884	Feature: Change LoRaWAN End Node Transmit Interval.
	885
	886	(% style="color:blue" %)AT Command: AT+TDC
	887
	888	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	889	\|=(% style="width: 156px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 137px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="background-color:#D9E2F3;color:#0070C0" %)Response
2.1	890	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	891	30000
	892	OK
	893	the interval is 30000ms = 30s
	894	)))
	895	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	896	OK
	897	Set transmit interval to 60000ms = 60 seconds
	898	)))
	899
	900	(% style="color:blue" %)Downlink Command: 0x01
	901
	902	Format: Command Code (0x01) followed by 3 bytes time value.
	903
	904	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	905
	906	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	907	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	908
52.4	909
	910
2.1	911	=== 3.3.2 Get Device Status ===
	912
43.52	913
40.1	914	Send a LoRaWAN downlink to ask the device to send its status.
2.1	915
44.4	916	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	917
44.4	918	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	919
	920
36.1	921	=== 3.3.3 Set Interrupt Mode ===
2.1	922
43.52	923
2.1	924	Feature, Set Interrupt mode for GPIO_EXIT.
	925
36.1	926	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	927
	928	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	929	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	930	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	931	0
	932	OK
	933	the mode is 0 =Disable Interrupt
	934	)))
36.1	935	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	936	Set Transmit Interval
	937	0. (Disable Interrupt),
	938	~1. (Trigger by rising and falling edge)
	939	2. (Trigger by falling edge)
	940	3. (Trigger by rising edge)
	941	)))\|(% style="width:157px" %)OK
36.1	942	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	943	Set Transmit Interval
	944	trigger by rising edge.
	945	)))\|(% style="width:157px" %)OK
	946	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	947
2.1	948	(% style="color:blue" %)Downlink Command: 0x06
	949
	950	Format: Command Code (0x06) followed by 3 bytes.
	951
	952	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	953
36.1	954	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	955	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	956	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	957	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	958
52.4	959
	960
36.1	961	=== 3.3.4 Set Power Output Duration ===
	962
43.52	963
36.1	964	Control the output duration 5V . Before each sampling, device will
	965
	966	~1. first enable the power output to external sensor,
	967
	968	2. keep it on as per duration, read sensor value and construct uplink payload
	969
	970	3. final, close the power output.
	971
	972	(% style="color:blue" %)AT Command: AT+5VT
	973
	974	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	975	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	976	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	977	500(default)
	978	OK
	979	)))
	980	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	981	Close after a delay of 1000 milliseconds.
	982	)))\|(% style="width:157px" %)OK
	983
	984	(% style="color:blue" %)Downlink Command: 0x07
	985
	986	Format: Command Code (0x07) followed by 2 bytes.
	987
	988	The first and second bytes are the time to turn on.
	989
40.1	990	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	991	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	992
52.4	993
	994
36.1	995	=== 3.3.5 Set Weighing parameters ===
	996
43.52	997
37.1	998	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	999
	1000	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	1001
	1002	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1003	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
37.1	1004	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	1005	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	1006	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	1007
	1008	(% style="color:blue" %)Downlink Command: 0x08
	1009
37.1	1010	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1011
37.1	1012	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	1013
37.1	1014	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1015
37.1	1016	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1017	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1018	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1019
52.4	1020
	1021
36.1	1022	=== 3.3.6 Set Digital pulse count value ===
	1023
43.52	1024
36.1	1025	Feature: Set the pulse count value.
	1026
37.1	1027	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1028
36.1	1029	(% style="color:blue" %)AT Command: AT+SETCNT
	1030
	1031	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1032	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	1033	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1034	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1035
	1036	(% style="color:blue" %)Downlink Command: 0x09
	1037
	1038	Format: Command Code (0x09) followed by 5 bytes.
	1039
	1040	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1041
	1042	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1043	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1044
52.4	1045
	1046
36.1	1047	=== 3.3.7 Set Workmode ===
	1048
43.52	1049
37.1	1050	Feature: Switch working mode.
36.1	1051
	1052	(% style="color:blue" %)AT Command: AT+MOD
	1053
	1054	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1055	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	1056	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1057	OK
	1058	)))
	1059	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1060	OK
	1061	Attention:Take effect after ATZ
	1062	)))
	1063
	1064	(% style="color:blue" %)Downlink Command: 0x0A
	1065
	1066	Format: Command Code (0x0A) followed by 1 bytes.
	1067
	1068	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1069	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1070
52.4	1071
	1072
2.1	1073	= 4. Battery & Power Consumption =
	1074
	1075
11.1	1076	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1077
	1078	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1079
	1080
	1081	= 5. OTA Firmware update =
	1082
	1083
	1084	(% class="wikigeneratedid" %)
44.4	1085	User can change firmware SN50v3-LB to:
2.1	1086
	1087	* Change Frequency band/ region.
	1088	* Update with new features.
	1089	* Fix bugs.
	1090
52.2	1091	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1092
44.4	1093	Methods to Update Firmware:
2.1	1094
	1095	* (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/]]
	1096	* 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]].
	1097
52.4	1098
	1099
2.1	1100	= 6. FAQ =
	1101
17.1	1102	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1103
43.52	1104
17.1	1105	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1106	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1107
52.4	1108
	1109
2.1	1110	= 7. Order Info =
	1111
	1112
10.1	1113	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1114
	1115	(% style="color:red" %)XX(%%): The default frequency band
11.1	1116
2.1	1117	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1118	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1119	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1120	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1121	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1122	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1123	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1124	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1125
10.1	1126	(% style="color:red" %)YY: (%%)Hole Option
2.1	1127
10.1	1128	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1129	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1130	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1131	* (% style="color:red" %)NH(%%): No Hole
	1132
52.4	1133
	1134
2.1	1135	= 8. Packing Info =
	1136
43.52	1137
2.1	1138	(% style="color:#037691" %)Package Includes:
	1139
10.1	1140	* SN50v3-LB LoRaWAN Generic Node
2.1	1141
	1142	(% style="color:#037691" %)Dimension and weight:
	1143
	1144	* Device Size: cm
	1145	* Device Weight: g
	1146	* Package Size / pcs : cm
	1147	* Weight / pcs : g
	1148
52.4	1149
	1150
2.1	1151	= 9. Support =
	1152
	1153
	1154	* 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	1155
41.4	1156	* 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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