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

Version 53.2 by Xiaoling on 2023/06/15 08:45

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
53.2	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
53.2	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
53.2	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
53.2	236	0x01: EU868
2.1	237
53.2	238	0x02: US915
2.1	239
53.2	240	0x03: IN865
2.1	241
53.2	242	0x04: AU915
2.1	243
53.2	244	0x05: KZ865
2.1	245
53.2	246	0x06: RU864
2.1	247
53.2	248	0x07: AS923
2.1	249
53.2	250	0x08: AS923-1
2.1	251
53.2	252	0x09: AS923-2
2.1	253
53.2	254	0x0a: AS923-3
2.1	255
53.2	256	0x0b: CN470
2.1	257
53.2	258	0x0c: EU433
2.1	259
53.2	260	0x0d: KR920
2.1	261
53.2	262	0x0e: MA869
2.1	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" %)(((
53.2	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
44.1	352	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	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
45.5	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
44.1	378	(% style="color:red" %)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
44.1	385	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	386
52.1	387	[[image:image-20230610170047-1.png\|\|height="452" width="799"]]
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)
43.54	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: 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	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
45.4	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
44.4	434
39.2	435	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	436
39.1	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
44.2	445	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)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 (% style="color:blue" %)AT+WEIGAP(%%) to adjust the Calibration Factor.
12.1	447	1. (((
26.2	448	Weight has 4 bytes, the unit is g.
43.53	449
	450
	451
12.1	452	)))
	453
	454	For example:
	455
44.2	456	(% style="color:blue" %)AT+GETSENSORVALUE =0
12.1	457
	458	Response: Weight is 401 g
	459
	460	Check the response of this command and adjust the value to match the real value for thing.
	461
43.29	462	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	463	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	464	Size(bytes)
43.30	465	)))\|=(% 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	466	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	467	Temperature(DS18B20)(PC13)
40.1	468	)))\|(% style="width:85px" %)(((
43.31	469	ADC(PA4)
40.1	470	)))\|(% style="width:186px" %)(((
43.55	471	Digital in(PB15) & Digital Interrupt(PA8)
40.1	472	)))\|(% style="width:100px" %)Weight
26.2	473
12.1	474	[[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"]]
	475
	476
43.45	477
13.1	478	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	479
43.45	480
12.1	481	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.
	482
	483	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.
	484
26.2	485	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	486
43.53	487
43.45	488	(% 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	489
43.38	490	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	491	\|=(% 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	492	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	493	Temperature(DS18B20)(PC13)
36.1	494	)))\|(% style="width:108px" %)(((
43.31	495	ADC(PA4)
36.1	496	)))\|(% style="width:126px" %)(((
43.31	497	Digital in(PB15)
36.1	498	)))\|(% style="width:145px" %)(((
43.31	499	Count(PA8)
36.1	500	)))
	501
12.1	502	[[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"]]
	503
	504
13.1	505	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	506
43.45	507
43.38	508	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	509	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	510	Size(bytes)
43.34	511	)))\|=(% 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	512	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	513	Temperature(DS18B20)
	514	(PC13)
40.1	515	)))\|(% style="width:83px" %)(((
43.35	516	ADC(PA5)
40.1	517	)))\|(% style="width:184px" %)(((
36.1	518	Digital Interrupt1(PA8)
40.1	519	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	520
	521	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	522
43.45	523
13.1	524	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	525
43.45	526
43.38	527	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	528	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	529	Size(bytes)
43.55	530	)))\|=(% 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	531	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	532	Temperature(DS18B20)
	533	(PC13)
	534	)))\|(% style="width:94px" %)(((
43.36	535	ADC1(PA4)
36.1	536	)))\|(% style="width:198px" %)(((
	537	Digital Interrupt(PB15)
	538	)))\|(% style="width:84px" %)(((
43.36	539	ADC2(PA5)
40.1	540	)))\|(% style="width:82px" %)(((
43.36	541	ADC3(PA8)
12.1	542	)))
	543
36.1	544	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	545
	546
13.1	547	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	548
43.45	549
43.38	550	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	551	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	552	Size(bytes)
43.56	553	)))\|=(% 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	554	\|Value\|BAT\|(((
43.58	555	Temperature
	556	(DS18B20)(PC13)
12.1	557	)))\|(((
43.58	558	Temperature2
	559	(DS18B20)(PB9)
12.1	560	)))\|(((
36.1	561	Digital Interrupt
	562	(PB15)
	563	)))\|(% style="width:193px" %)(((
43.58	564	Temperature3
	565	(DS18B20)(PB8)
36.1	566	)))\|(% style="width:78px" %)(((
43.39	567	Count1(PA8)
36.1	568	)))\|(% style="width:78px" %)(((
43.39	569	Count2(PA4)
12.1	570	)))
	571
36.1	572	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	573
43.40	574	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	575
43.44	576	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	577
43.44	578	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	579
43.44	580	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	581
	582
43.41	583	(% style="color:blue" %)AT+SETCNT=aa,bb
	584
36.1	585	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	586
36.1	587	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	588
	589
14.1	590	=== 2.3.3 Decode payload ===
	591
43.45	592
12.1	593	While using TTN V3 network, you can add the payload format to decode the payload.
	594
	595	[[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"]]
	596
	597	The payload decoder function for TTN V3 are here:
	598
44.2	599	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	600
	601
14.1	602	==== 2.3.3.1 Battery Info ====
2.1	603
43.45	604
44.2	605	Check the battery voltage for SN50v3-LB.
2.1	606
	607	Ex1: 0x0B45 = 2885mV
	608
	609	Ex2: 0x0B49 = 2889mV
	610
	611
14.1	612	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	613
43.45	614
42.1	615	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	616
43.45	617	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	618
43.41	619	(% style="color:blue" %)Connection:
14.1	620
26.2	621	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	622
43.46	623
43.41	624	(% style="color:blue" %)Example:
2.1	625
	626	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	627
	628	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	629
	630	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	631
	632
14.1	633	==== 2.3.3.3 Digital Input ====
2.1	634
43.46	635
26.2	636	The digital input for pin PB15,
2.1	637
26.2	638	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	639	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	640
26.2	641	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	642	(((
36.1	643	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	644
43.46	645	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	646
	647
26.2	648	)))
	649
14.1	650	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	651
43.46	652
53.1	653	The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
2.1	654
53.1	655	When the measured output voltage of the sensor is not within the range of 0.1V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.
14.1	656
26.2	657	[[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	658
44.2	659
43.46	660	(% 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	661
43.1	662
14.1	663	==== 2.3.3.5 Digital Interrupt ====
	664
43.46	665
44.2	666	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	667
43.44	668	(% style="color:blue" %) Interrupt connection method:
14.1	669
36.1	670	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	671
43.46	672
43.8	673	(% style="color:blue" %)Example to use with door sensor :
14.1	674
	675	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.
	676
	677	[[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"]]
	678
44.2	679	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	680
	681
43.46	682	(% style="color:blue" %)Below is the installation example:
	683
44.2	684	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	685
	686	* (((
44.2	687	One pin to SN50v3-LB's PA8 pin
14.1	688	)))
	689	* (((
44.2	690	The other pin to SN50v3-LB's VDD pin
14.1	691	)))
	692
36.1	693	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	694
43.46	695	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	696
36.1	697	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	698
	699	[[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"]]
	700
	701	The above photos shows the two parts of the magnetic switch fitted to a door.
	702
	703	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.
	704
	705	The command is:
	706
44.2	707	(% 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	708
	709	Below shows some screen captures in TTN V3:
	710
	711	[[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"]]
	712
43.47	713
44.4	714	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	715
	716	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	717
	718
26.2	719	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	720
43.47	721
26.2	722	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	723
40.1	724	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	725
44.2	726	(% 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	727
44.2	728
14.1	729	Below is the connection to SHT20/ SHT31. The connection is as below:
	730
52.1	731	[[image:image-20230610170152-2.png\|\|height="501" width="846"]]
36.1	732
44.4	733
14.1	734	The device will be able to get the I2C sensor data now and upload to IoT Server.
	735
	736	[[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"]]
	737
	738	Convert the read byte to decimal and divide it by ten.
	739
2.1	740	Example:
	741
14.1	742	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	743
14.1	744	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	745
14.1	746	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	747
	748
14.1	749	==== 2.3.3.7 Distance Reading ====
2.1	750
43.48	751
43.42	752	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	753
	754
	755	==== 2.3.3.8 Ultrasonic Sensor ====
	756
43.48	757
26.2	758	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	759
44.2	760	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	761
43.44	762	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	763
14.1	764	The picture below shows the connection:
	765
36.1	766	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	767
43.50	768
44.2	769	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	770
	771	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	772
	773	Example:
	774
	775	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	776
	777
	778	==== 2.3.3.9 Battery Output - BAT pin ====
	779
43.50	780
44.4	781	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	782
	783
	784	==== 2.3.3.10 +5V Output ====
	785
43.50	786
44.2	787	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	788
	789	The 5V output time can be controlled by AT Command.
	790
43.9	791	(% style="color:blue" %)AT+5VT=1000
14.1	792
	793	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	794
44.4	795	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	796
	797
	798	==== 2.3.3.11 BH1750 Illumination Sensor ====
	799
43.50	800
14.1	801	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	802
40.1	803	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	804
43.51	805
40.1	806	[[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	807
	808
	809	==== 2.3.3.12 Working MOD ====
	810
43.51	811
14.1	812	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	813
	814	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	815
	816	Case 7^^th^^ Byte >> 2 & 0x1f:
	817
	818	* 0: MOD1
	819	* 1: MOD2
	820	* 2: MOD3
	821	* 3: MOD4
	822	* 4: MOD5
	823	* 5: MOD6
36.1	824	* 6: MOD7
	825	* 7: MOD8
	826	* 8: MOD9
14.1	827
2.1	828	== 2.4 Payload Decoder file ==
	829
	830
	831	In TTN, use can add a custom payload so it shows friendly reading
	832
	833	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	834
40.1	835	[[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	836
	837
15.1	838	== 2.5 Frequency Plans ==
2.1	839
	840
15.1	841	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	842
	843	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	844
	845
16.1	846	= 3. Configure SN50v3-LB =
2.1	847
	848	== 3.1 Configure Methods ==
	849
	850
16.1	851	SN50v3-LB supports below configure method:
2.1	852
	853	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	854	* 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]].
	855	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	856
	857	== 3.2 General Commands ==
	858
	859
	860	These commands are to configure:
	861
	862	* General system settings like: uplink interval.
	863	* LoRaWAN protocol & radio related command.
	864
	865	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	866
	867	[[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/]]
	868
	869
16.1	870	== 3.3 Commands special design for SN50v3-LB ==
2.1	871
	872
44.2	873	These commands only valid for SN50v3-LB, as below:
2.1	874
	875
	876	=== 3.3.1 Set Transmit Interval Time ===
	877
43.51	878
2.1	879	Feature: Change LoRaWAN End Node Transmit Interval.
	880
	881	(% style="color:blue" %)AT Command: AT+TDC
	882
	883	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	884	\|=(% 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	885	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	886	30000
	887	OK
	888	the interval is 30000ms = 30s
	889	)))
	890	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	891	OK
	892	Set transmit interval to 60000ms = 60 seconds
	893	)))
	894
	895	(% style="color:blue" %)Downlink Command: 0x01
	896
	897	Format: Command Code (0x01) followed by 3 bytes time value.
	898
	899	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	900
	901	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	902	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	903
	904	=== 3.3.2 Get Device Status ===
	905
43.52	906
40.1	907	Send a LoRaWAN downlink to ask the device to send its status.
2.1	908
44.4	909	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	910
44.4	911	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	912
	913
36.1	914	=== 3.3.3 Set Interrupt Mode ===
2.1	915
43.52	916
2.1	917	Feature, Set Interrupt mode for GPIO_EXIT.
	918
36.1	919	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	920
	921	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	922	\|=(% 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	923	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	924	0
	925	OK
	926	the mode is 0 =Disable Interrupt
	927	)))
36.1	928	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	929	Set Transmit Interval
	930	0. (Disable Interrupt),
	931	~1. (Trigger by rising and falling edge)
	932	2. (Trigger by falling edge)
	933	3. (Trigger by rising edge)
	934	)))\|(% style="width:157px" %)OK
36.1	935	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	936	Set Transmit Interval
	937	trigger by rising edge.
	938	)))\|(% style="width:157px" %)OK
	939	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	940
2.1	941	(% style="color:blue" %)Downlink Command: 0x06
	942
	943	Format: Command Code (0x06) followed by 3 bytes.
	944
	945	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	946
36.1	947	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	948	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	949	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	950	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	951
36.1	952	=== 3.3.4 Set Power Output Duration ===
	953
43.52	954
36.1	955	Control the output duration 5V . Before each sampling, device will
	956
	957	~1. first enable the power output to external sensor,
	958
	959	2. keep it on as per duration, read sensor value and construct uplink payload
	960
	961	3. final, close the power output.
	962
	963	(% style="color:blue" %)AT Command: AT+5VT
	964
	965	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	966	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)Function\|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)Response
36.1	967	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	968	500(default)
	969	OK
	970	)))
	971	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	972	Close after a delay of 1000 milliseconds.
	973	)))\|(% style="width:157px" %)OK
	974
	975	(% style="color:blue" %)Downlink Command: 0x07
	976
	977	Format: Command Code (0x07) followed by 2 bytes.
	978
	979	The first and second bytes are the time to turn on.
	980
40.1	981	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	982	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	983
	984	=== 3.3.5 Set Weighing parameters ===
	985
43.52	986
37.1	987	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	988
	989	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	990
	991	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	992	\|=(% 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	993	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	994	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	995	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	996
	997	(% style="color:blue" %)Downlink Command: 0x08
	998
37.1	999	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1000
37.1	1001	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	1002
37.1	1003	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1004
37.1	1005	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1006	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1007	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1008
36.1	1009	=== 3.3.6 Set Digital pulse count value ===
	1010
43.52	1011
36.1	1012	Feature: Set the pulse count value.
	1013
37.1	1014	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1015
36.1	1016	(% style="color:blue" %)AT Command: AT+SETCNT
	1017
	1018	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1019	\|=(% 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	1020	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1021	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1022
	1023	(% style="color:blue" %)Downlink Command: 0x09
	1024
	1025	Format: Command Code (0x09) followed by 5 bytes.
	1026
	1027	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1028
	1029	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1030	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1031
	1032	=== 3.3.7 Set Workmode ===
	1033
43.52	1034
37.1	1035	Feature: Switch working mode.
36.1	1036
	1037	(% style="color:blue" %)AT Command: AT+MOD
	1038
	1039	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1040	\|=(% 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	1041	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1042	OK
	1043	)))
	1044	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1045	OK
	1046	Attention:Take effect after ATZ
	1047	)))
	1048
	1049	(% style="color:blue" %)Downlink Command: 0x0A
	1050
	1051	Format: Command Code (0x0A) followed by 1 bytes.
	1052
	1053	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1054	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1055
2.1	1056	= 4. Battery & Power Consumption =
	1057
	1058
11.1	1059	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1060
	1061	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1062
	1063
	1064	= 5. OTA Firmware update =
	1065
	1066
	1067	(% class="wikigeneratedid" %)
44.4	1068	User can change firmware SN50v3-LB to:
2.1	1069
	1070	* Change Frequency band/ region.
	1071	* Update with new features.
	1072	* Fix bugs.
	1073
52.2	1074	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1075
44.4	1076	Methods to Update Firmware:
2.1	1077
	1078	* (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/]]
	1079	* 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]].
	1080
	1081	= 6. FAQ =
	1082
17.1	1083	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1084
43.52	1085
17.1	1086	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1087	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1088
	1089	= 7. Order Info =
	1090
	1091
10.1	1092	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1093
	1094	(% style="color:red" %)XX(%%): The default frequency band
11.1	1095
2.1	1096	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1097	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1098	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1099	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1100	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1101	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1102	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1103	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1104
10.1	1105	(% style="color:red" %)YY: (%%)Hole Option
2.1	1106
10.1	1107	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1108	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1109	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1110	* (% style="color:red" %)NH(%%): No Hole
	1111
2.1	1112	= 8. Packing Info =
	1113
43.52	1114
2.1	1115	(% style="color:#037691" %)Package Includes:
	1116
10.1	1117	* SN50v3-LB LoRaWAN Generic Node
2.1	1118
	1119	(% style="color:#037691" %)Dimension and weight:
	1120
	1121	* Device Size: cm
	1122	* Device Weight: g
	1123	* Package Size / pcs : cm
	1124	* Weight / pcs : g
	1125
	1126	= 9. Support =
	1127
	1128
	1129	* 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	1130
41.4	1131	* 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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