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

Version 43.45 by Xiaoling on 2023/05/16 15:37

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
43.45	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
43.45	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
43.45	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
36.1	132	[[image:image-20230513102034-2.png]]
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
5.1	145	== Hole Option ==
	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
11.2	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 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	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
	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.
	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
11.2	217	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	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
	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
	226
	227	Example parse in TTNv3
	228
	229
11.2	230	(% style="color:#037691" %)Sensor Model(%%): For SN50v3, 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
12.1	286	SN50v3 has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command AT+MOD to set SN50v3 to different working modes.
	287
	288	For example:
	289
	290	AT+MOD=2 ~/~/ will set the SN50v3 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.
	291
	292
13.1	293	(% style="color:red" %) Important Notice:
12.1	294
	295	1. Some working modes has payload more than 12 bytes, The US915/AU915/AS923 frequency bands' definition has maximum 11 bytes in DR0. Server sides will see NULL payload while SN50v3 transmit in DR0 with 12 bytes payload.
13.1	296	1. All modes share the same Payload Explanation from HERE.
	297	1. By default, the device will send an uplink message every 20 minutes.
12.1	298
43.45	299
	300
13.1	301	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	302
43.5	303
12.1	304	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	305
43.5	306	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	307	\|(% 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:40px" %)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:90px" %)2
40.1	308	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	309	Temperature(DS18B20)(PC13)
40.1	310	)))\|(% style="width:78px" %)(((
43.12	311	ADC(PA4)
26.2	312	)))\|(% style="width:216px" %)(((
43.13	313	Digital in(PB15)&Digital Interrupt(PA8)
40.1	314	)))\|(% style="width:308px" %)(((
43.12	315	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	316	)))\|(% style="width:154px" %)(((
43.12	317	Humidity(SHT20 or SHT31)
36.1	318	)))
	319
12.1	320	[[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"]]
	321
	322
43.45	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" %)
43.44	330	\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)Size(bytes)\|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)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	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
	339	Or 2) Ultrasonic Sensor
40.1	340	)))\|(% style="width:117px" %)Reserved
12.1	341
	342	[[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"]]
	343
43.45	344
43.17	345	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	346
26.2	347	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	348
43.45	349
43.17	350	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	351
36.1	352	Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
	353
26.2	354	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	355
43.45	356
12.1	357	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	358
43.19	359	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	360	\|(% 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	361	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	362	Temperature(DS18B20)(PC13)
40.1	363	)))\|(% style="width:173px" %)(((
43.19	364	Digital in(PB15) & Digital Interrupt(PA8)
40.1	365	)))\|(% style="width:84px" %)(((
43.19	366	ADC(PA4)
40.1	367	)))\|(% style="width:323px" %)(((
12.1	368	Distance measure by:1)TF-Mini plus LiDAR
43.22	369	Or
	370	2) TF-Luna LiDAR
40.1	371	)))\|(% style="width:188px" %)Distance signal strength
12.1	372
	373	[[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"]]
	374
43.45	375
12.1	376	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	377
36.1	378	Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	379
26.2	380	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	381
43.45	382
12.1	383	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	384
36.1	385	Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	386
36.1	387	[[image:image-20230513105207-4.png\|\|height="469" width="802"]]
12.1	388
	389
13.1	390	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	391
43.45	392
12.1	393	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	394
43.21	395	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	396	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	397	Size(bytes)
43.24	398	)))\|=(% 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: 140px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)1
26.2	399	\|Value\|(% style="width:68px" %)(((
43.23	400	ADC1(PA4)
26.2	401	)))\|(% style="width:75px" %)(((
43.23	402	ADC2(PA5)
36.1	403	)))\|(((
43.23	404	ADC3(PA8)
36.1	405	)))\|(((
	406	Digital Interrupt(PB15)
	407	)))\|(% style="width:304px" %)(((
43.23	408	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	409	)))\|(% style="width:163px" %)(((
43.23	410	Humidity(SHT20 or SHT31)
36.1	411	)))\|(% style="width:53px" %)Bat
	412
	413	[[image:image-20230513110214-6.png]]
	414
	415
13.1	416	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	417
12.1	418
26.2	419	This mode has total 11 bytes. As shown below:
12.1	420
43.26	421	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	422	\|(% 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	423	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	424	Temperature1(DS18B20)(PC13)
26.2	425	)))\|(% style="width:82px" %)(((
43.27	426	ADC(PA4)
26.2	427	)))\|(% style="width:210px" %)(((
43.27	428	Digital in(PB15) & Digital Interrupt(PA8)
26.2	429	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	430	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	431
	432	[[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"]]
	433
39.2	434	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	435
39.1	436
43.45	437
13.1	438	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	439
43.45	440
26.2	441	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	442
	443	Each HX711 need to be calibrated before used. User need to do below two steps:
	444
	445	1. Zero calibration. Don't put anything on load cell and run AT+WEIGRE to calibrate to Zero gram.
	446	1. Adjust calibration factor (default value 400): Put a known weight thing on load cell and run AT+WEIGAP to adjust the Calibration Factor.
	447	1. (((
26.2	448	Weight has 4 bytes, the unit is g.
12.1	449	)))
	450
	451	For example:
	452
26.2	453	AT+GETSENSORVALUE =0
12.1	454
	455	Response: Weight is 401 g
	456
	457	Check the response of this command and adjust the value to match the real value for thing.
	458
43.29	459	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	460	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	461	Size(bytes)
43.30	462	)))\|=(% 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	463	\|Value\|BAT\|(% style="width:193px" %)(((
36.1	464	Temperature(DS18B20)
26.2	465	(PC13)
40.1	466	)))\|(% style="width:85px" %)(((
43.31	467	ADC(PA4)
40.1	468	)))\|(% style="width:186px" %)(((
36.1	469	Digital in(PB15) &
	470	Digital Interrupt(PA8)
40.1	471	)))\|(% style="width:100px" %)Weight
26.2	472
12.1	473	[[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"]]
	474
	475
43.45	476
13.1	477	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	478
43.45	479
12.1	480	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.
	481
	482	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.
	483
26.2	484	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	485
43.45	486	(% 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	487
43.38	488	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.32	489	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)Size(bytes)\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 220px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 50px;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	490	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	491	Temperature(DS18B20)(PC13)
36.1	492	)))\|(% style="width:108px" %)(((
43.31	493	ADC(PA4)
36.1	494	)))\|(% style="width:126px" %)(((
43.31	495	Digital in(PB15)
36.1	496	)))\|(% style="width:145px" %)(((
43.31	497	Count(PA8)
36.1	498	)))
	499
12.1	500	[[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"]]
	501
	502
43.45	503
13.1	504	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	505
43.45	506
43.38	507	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	508	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	509	Size(bytes)
43.34	510	)))\|=(% 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	511	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	512	Temperature(DS18B20)
	513	(PC13)
40.1	514	)))\|(% style="width:83px" %)(((
43.35	515	ADC(PA5)
40.1	516	)))\|(% style="width:184px" %)(((
36.1	517	Digital Interrupt1(PA8)
40.1	518	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	519
	520	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	521
43.45	522
13.1	523	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	524
43.45	525
43.38	526	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	527	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	528	Size(bytes)
43.37	529	)))\|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 120px;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	530	\|Value\|BAT\|(% style="width:207px" %)(((
	531	Temperature(DS18B20)
	532	(PC13)
	533	)))\|(% style="width:94px" %)(((
43.36	534	ADC1(PA4)
36.1	535	)))\|(% style="width:198px" %)(((
	536	Digital Interrupt(PB15)
	537	)))\|(% style="width:84px" %)(((
43.36	538	ADC2(PA5)
40.1	539	)))\|(% style="width:82px" %)(((
43.36	540	ADC3(PA8)
12.1	541	)))
	542
36.1	543	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	544
	545
13.1	546	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	547
43.45	548
43.38	549	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	550	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	551	Size(bytes)
43.39	552	)))\|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="width: 100px;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	553	\|Value\|BAT\|(((
36.1	554	Temperature1(DS18B20)
	555	(PC13)
12.1	556	)))\|(((
36.1	557	Temperature2(DS18B20)
	558	(PB9)
12.1	559	)))\|(((
36.1	560	Digital Interrupt
	561	(PB15)
	562	)))\|(% style="width:193px" %)(((
	563	Temperature3(DS18B20)
	564	(PB8)
	565	)))\|(% style="width:78px" %)(((
43.39	566	Count1(PA8)
36.1	567	)))\|(% style="width:78px" %)(((
43.39	568	Count2(PA4)
12.1	569	)))
	570
36.1	571	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	572
43.40	573	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	574
43.44	575	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	576
43.44	577	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	578
43.44	579	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	580
	581
43.41	582	(% style="color:blue" %)AT+SETCNT=aa,bb
	583
36.1	584	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	585
36.1	586	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	587
	588
14.1	589	=== 2.3.3 Decode payload ===
	590
43.45	591
12.1	592	While using TTN V3 network, you can add the payload format to decode the payload.
	593
	594	[[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"]]
	595
	596	The payload decoder function for TTN V3 are here:
	597
14.1	598	SN50v3 TTN V3 Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
12.1	599
	600
14.1	601	==== 2.3.3.1 Battery Info ====
2.1	602
43.45	603
14.1	604	Check the battery voltage for SN50v3.
2.1	605
	606	Ex1: 0x0B45 = 2885mV
	607
	608	Ex2: 0x0B49 = 2889mV
	609
	610
14.1	611	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	612
43.45	613
42.1	614	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	615
43.45	616	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	617
43.41	618	(% style="color:blue" %)Connection:
14.1	619
26.2	620	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	621
43.41	622	(% style="color:blue" %)Example:
2.1	623
	624	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	625
	626	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	627
	628	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	629
	630
14.1	631	==== 2.3.3.3 Digital Input ====
2.1	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
43.8	642	(% style="color:red" %)Note:The maximum voltage input supports 3.6V.
26.2	643	)))
	644
14.1	645	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	646
36.1	647	The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
2.1	648
36.1	649	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	650
26.2	651	[[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	652
43.8	653	(% 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	654
43.1	655
14.1	656	==== 2.3.3.5 Digital Interrupt ====
	657
36.1	658	Digital Interrupt refers to pin PA8, and there are different trigger methods. When there is a trigger, the SN50v3 will send a packet to the server.
14.1	659
43.44	660	(% style="color:blue" %) Interrupt connection method:
14.1	661
36.1	662	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	663
43.8	664	(% style="color:blue" %)Example to use with door sensor :
14.1	665
	666	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.
	667
	668	[[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"]]
	669
36.1	670	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 SN50_v3 interrupt interface to detect the status for the door or window.
14.1	671
43.44	672	(% style="color:blue" %) Below is the installation example:
14.1	673
36.1	674	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:
14.1	675
	676	* (((
36.1	677	One pin to SN50_v3's PA8 pin
14.1	678	)))
	679	* (((
36.1	680	The other pin to SN50_v3's VDD pin
14.1	681	)))
	682
36.1	683	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	684
	685	Door sensors have two types: NC (Normal close) and 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.
	686
36.1	687	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	688
	689	[[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"]]
	690
	691	The above photos shows the two parts of the magnetic switch fitted to a door.
	692
	693	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.
	694
	695	The command is:
	696
43.44	697	(% 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	698
	699	Below shows some screen captures in TTN V3:
	700
	701	[[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"]]
	702
	703	In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
	704
	705	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	706
	707
26.2	708	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	709
26.2	710	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	711
40.1	712	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	713
40.1	714	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 SN50_v3 will be a good reference.
14.1	715
	716	Below is the connection to SHT20/ SHT31. The connection is as below:
	717
	718
40.1	719	[[image:image-20230513103633-3.png\|\|height="448" width="716"]]
36.1	720
14.1	721	The device will be able to get the I2C sensor data now and upload to IoT Server.
	722
	723	[[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"]]
	724
	725	Convert the read byte to decimal and divide it by ten.
	726
2.1	727	Example:
	728
14.1	729	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	730
14.1	731	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	732
14.1	733	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	734
	735
14.1	736	==== 2.3.3.7 Distance Reading ====
2.1	737
43.42	738	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	739
	740
	741	==== 2.3.3.8 Ultrasonic Sensor ====
	742
26.2	743	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	744
36.1	745	The SN50_v3 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	746
43.44	747	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	748
14.1	749	The picture below shows the connection:
	750
36.1	751	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	752
43.44	753	Connect to the SN50_v3 and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	754
	755	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	756
	757	Example:
	758
	759	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	760
	761
	762
	763	==== 2.3.3.9 Battery Output - BAT pin ====
	764
	765	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.
	766
	767
	768	==== 2.3.3.10 +5V Output ====
	769
	770	SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling.
	771
	772	The 5V output time can be controlled by AT Command.
	773
43.9	774	(% style="color:blue" %)AT+5VT=1000
14.1	775
	776	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	777
	778	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.
	779
	780
	781
	782	==== 2.3.3.11 BH1750 Illumination Sensor ====
	783
	784	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	785
40.1	786	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	787
40.1	788	[[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	789
	790
	791	==== 2.3.3.12 Working MOD ====
	792
	793	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	794
	795	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	796
	797	Case 7^^th^^ Byte >> 2 & 0x1f:
	798
	799	* 0: MOD1
	800	* 1: MOD2
	801	* 2: MOD3
	802	* 3: MOD4
	803	* 4: MOD5
	804	* 5: MOD6
36.1	805	* 6: MOD7
	806	* 7: MOD8
	807	* 8: MOD9
14.1	808
43.1	809
2.1	810	== 2.4 Payload Decoder file ==
	811
	812
	813	In TTN, use can add a custom payload so it shows friendly reading
	814
	815	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	816
40.1	817	[[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	818
	819
	820
15.1	821	== 2.5 Frequency Plans ==
2.1	822
	823
15.1	824	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	825
	826	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	827
	828
16.1	829	= 3. Configure SN50v3-LB =
2.1	830
	831	== 3.1 Configure Methods ==
	832
	833
16.1	834	SN50v3-LB supports below configure method:
2.1	835
	836	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	837	* 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]].
	838	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	839
	840	== 3.2 General Commands ==
	841
	842
	843	These commands are to configure:
	844
	845	* General system settings like: uplink interval.
	846	* LoRaWAN protocol & radio related command.
	847
	848	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	849
	850	[[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/]]
	851
	852
16.1	853	== 3.3 Commands special design for SN50v3-LB ==
2.1	854
	855
	856	These commands only valid for S31x-LB, as below:
	857
	858
	859	=== 3.3.1 Set Transmit Interval Time ===
	860
	861	Feature: Change LoRaWAN End Node Transmit Interval.
	862
	863	(% style="color:blue" %)AT Command: AT+TDC
	864
	865	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	866	\|=(% style="width: 156px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 137px;background-color:#D9E2F3" %)Function\|=(% style="background-color:#D9E2F3" %)Response
	867	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	868	30000
	869	OK
	870	the interval is 30000ms = 30s
	871	)))
	872	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	873	OK
	874	Set transmit interval to 60000ms = 60 seconds
	875	)))
	876
	877	(% style="color:blue" %)Downlink Command: 0x01
	878
	879	Format: Command Code (0x01) followed by 3 bytes time value.
	880
	881	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	882
	883	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	884	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	885
40.1	886
2.1	887	=== 3.3.2 Get Device Status ===
	888
40.1	889	Send a LoRaWAN downlink to ask the device to send its status.
2.1	890
	891	(% style="color:blue" %)Downlink Payload: (%%)0x26 01
	892
	893	Sensor will upload Device Status via FPORT=5. See payload section for detail.
	894
	895
36.1	896	=== 3.3.3 Set Interrupt Mode ===
2.1	897
	898	Feature, Set Interrupt mode for GPIO_EXIT.
	899
36.1	900	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	901
	902	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	903	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
36.1	904	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	905	0
	906	OK
	907	the mode is 0 =Disable Interrupt
	908	)))
36.1	909	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	910	Set Transmit Interval
	911	0. (Disable Interrupt),
	912	~1. (Trigger by rising and falling edge)
	913	2. (Trigger by falling edge)
	914	3. (Trigger by rising edge)
	915	)))\|(% style="width:157px" %)OK
36.1	916	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	917	Set Transmit Interval
2.1	918
36.1	919	trigger by rising edge.
	920	)))\|(% style="width:157px" %)OK
	921	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	922
2.1	923	(% style="color:blue" %)Downlink Command: 0x06
	924
	925	Format: Command Code (0x06) followed by 3 bytes.
	926
	927	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	928
36.1	929	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	930	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	931	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	932	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	933
40.1	934
36.1	935	=== 3.3.4 Set Power Output Duration ===
	936
	937	Control the output duration 5V . Before each sampling, device will
	938
	939	~1. first enable the power output to external sensor,
	940
	941	2. keep it on as per duration, read sensor value and construct uplink payload
	942
	943	3. final, close the power output.
	944
	945	(% style="color:blue" %)AT Command: AT+5VT
	946
	947	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	948	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
	949	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	950	500(default)
	951	OK
	952	)))
	953	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	954	Close after a delay of 1000 milliseconds.
	955	)))\|(% style="width:157px" %)OK
	956
	957	(% style="color:blue" %)Downlink Command: 0x07
	958
	959	Format: Command Code (0x07) followed by 2 bytes.
	960
	961	The first and second bytes are the time to turn on.
	962
40.1	963	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	964	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	965
40.1	966
36.1	967	=== 3.3.5 Set Weighing parameters ===
	968
37.1	969	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	970
	971	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	972
	973	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	974	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
37.1	975	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	976	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	977	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	978
	979	(% style="color:blue" %)Downlink Command: 0x08
	980
37.1	981	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	982
37.1	983	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	984
37.1	985	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	986
37.1	987	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	988	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	989	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	990
40.1	991
36.1	992	=== 3.3.6 Set Digital pulse count value ===
	993
	994	Feature: Set the pulse count value.
	995
37.1	996	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	997
36.1	998	(% style="color:blue" %)AT Command: AT+SETCNT
	999
	1000	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1001	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
	1002	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1003	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1004
	1005	(% style="color:blue" %)Downlink Command: 0x09
	1006
	1007	Format: Command Code (0x09) followed by 5 bytes.
	1008
	1009	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1010
	1011	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1012	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1013
40.1	1014
36.1	1015	=== 3.3.7 Set Workmode ===
	1016
37.1	1017	Feature: Switch working mode.
36.1	1018
	1019	(% style="color:blue" %)AT Command: AT+MOD
	1020
	1021	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1022	\|=(% style="width: 154px;background-color:#D9E2F3" %)Command Example\|=(% style="width: 196px;background-color:#D9E2F3" %)Function\|=(% style="width: 157px;background-color:#D9E2F3" %)Response
	1023	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1024	OK
	1025	)))
	1026	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1027	OK
	1028	Attention:Take effect after ATZ
	1029	)))
	1030
	1031	(% style="color:blue" %)Downlink Command: 0x0A
	1032
	1033	Format: Command Code (0x0A) followed by 1 bytes.
	1034
	1035	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1036	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1037
40.1	1038
2.1	1039	= 4. Battery & Power Consumption =
	1040
	1041
11.1	1042	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1043
	1044	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1045
	1046
	1047	= 5. OTA Firmware update =
	1048
	1049
	1050	(% class="wikigeneratedid" %)
11.1	1051	User can change firmware SN50v3-LB to:
2.1	1052
	1053	* Change Frequency band/ region.
	1054	* Update with new features.
	1055	* Fix bugs.
	1056
	1057	Firmware and changelog can be downloaded from : [[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]
	1058
	1059
	1060	Methods to Update Firmware:
	1061
	1062	* (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/]]
	1063	* 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]].
	1064
	1065	= 6. FAQ =
	1066
17.1	1067	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1068
17.1	1069	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1070	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1071
	1072	= 7. Order Info =
	1073
	1074
10.1	1075	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1076
	1077	(% style="color:red" %)XX(%%): The default frequency band
11.1	1078
2.1	1079	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1080	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1081	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1082	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1083	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1084	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1085	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1086	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1087
10.1	1088	(% style="color:red" %)YY: (%%)Hole Option
2.1	1089
10.1	1090	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1091	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1092	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1093	* (% style="color:red" %)NH(%%): No Hole
	1094
2.1	1095	= 8. Packing Info =
	1096
	1097	(% style="color:#037691" %)Package Includes:
	1098
10.1	1099	* SN50v3-LB LoRaWAN Generic Node
2.1	1100
	1101	(% style="color:#037691" %)Dimension and weight:
	1102
	1103	* Device Size: cm
	1104	* Device Weight: g
	1105	* Package Size / pcs : cm
	1106	* Weight / pcs : g
	1107
	1108	= 9. Support =
	1109
	1110
	1111	* 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	1112
41.4	1113	* 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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