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

Version 85.1 by Edwin Chen on 2023/12/31 20:35

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
79.3	6	Table of Contents:
2.1	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
74.7	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, 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
	30	== 1.2 Features ==
	31
43.44	32
2.1	33	* LoRaWAN 1.0.3 Class A
	34	* Ultra-low power consumption
5.1	35	* Open-Source hardware/software
2.1	36	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
	37	* Support Bluetooth v5.1 and LoRaWAN remote configure
	38	* Support wireless OTA update firmware
	39	* Uplink on periodically
	40	* Downlink to change configure
	41	* 8500mAh Battery for long term use
	42
	43	== 1.3 Specification ==
	44
43.4	45
2.1	46	(% style="color:#037691" %)Common DC Characteristics:
	47
	48	* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
	49	* Operating Temperature: -40 ~~ 85°C
	50
5.1	51	(% style="color:#037691" %)I/O Interface:
2.1	52
5.1	53	* Battery output (2.6v ~~ 3.6v depends on battery)
	54	* +5v controllable output
	55	* 3 x Interrupt or Digital IN/OUT pins
	56	* 3 x one-wire interfaces
	57	* 1 x UART Interface
	58	* 1 x I2C Interface
2.1	59
	60	(% style="color:#037691" %)LoRa Spec:
	61
	62	* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz
	63	* Max +22 dBm constant RF output vs.
	64	* RX sensitivity: down to -139 dBm.
	65	* Excellent blocking immunity
	66
	67	(% style="color:#037691" %)Battery:
	68
	69	* Li/SOCI2 un-chargeable battery
	70	* Capacity: 8500mAh
	71	* Self-Discharge: <1% / Year @ 25°C
	72	* Max continuously current: 130mA
	73	* Max boost current: 2A, 1 second
	74
	75	(% style="color:#037691" %)Power Consumption
	76
	77	* Sleep Mode: 5uA @ 3.3v
	78	* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
	79
	80	== 1.4 Sleep mode and working mode ==
	81
43.4	82
2.1	83	(% 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.
	84
	85	(% 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.
	86
	87
	88	== 1.5 Button & LEDs ==
	89
	90
82.1	91	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]][[image:image-20231231203148-2.png\|\|height="456" width="316"]]
2.1	92
	93
	94	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	95	\|=(% 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
	96	\|(% style="width:167px" %)Pressing ACT between 1s < time < 3s\|(% style="width:117px" %)Send an uplink\|(% style="width:225px" %)(((
	97	If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)blue led (%%)will blink once.
	98	Meanwhile, BLE module will be active and user can connect via BLE to configure device.
	99	)))
	100	\|(% style="width:167px" %)Pressing ACT for more than 3s\|(% style="width:117px" %)Active Device\|(% style="width:225px" %)(((
	101	(% 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.
	102	(% style="color:green" %)Green led(%%) will solidly turn on for 5 seconds after joined in network.
	103	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.
	104	)))
	105	\|(% 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.
	106
	107	== 1.6 BLE connection ==
	108
	109
5.1	110	SN50v3-LB supports BLE remote configure.
2.1	111
	112
	113	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:
	114
	115	* Press button to send an uplink
	116	* Press button to active device.
	117	* Device Power on or reset.
	118
	119	If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
	120
	121
6.1	122	== 1.7 Pin Definitions ==
2.1	123
	124
49.1	125	[[image:image-20230610163213-1.png\|\|height="404" width="699"]]
2.1	126
	127
	128	== 1.8 Mechanical ==
	129
85.1	130	=== 1.8.1 for LB version ===
2.1	131
	132
84.1	133	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]][[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
2.1	134
84.1	135
2.1	136	[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
	137
85.1	138	=== 1.8.2 for LS version ===
2.1	139
84.1	140	[[image:image-20231231203439-3.png\|\|height="385" width="886"]]
	141
	142
44.5	143	== 1.9 Hole Option ==
5.1	144
43.4	145
5.1	146	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:
	147
	148	[[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"]]
	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/1656298089706-973.png?rev=1.1\|\|alt="1656298089706-973.png"]]
	151
	152
10.1	153	= 2. Configure SN50v3-LB to connect to LoRaWAN network =
2.1	154
	155	== 2.1 How it works ==
	156
	157
44.3	158	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	159
	160
	161	== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==
	162
	163
	164	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.
	165
44.3	166	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	167
	168
11.2	169	(% style="color:blue" %)Step 1:(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.
2.1	170
11.2	171	Each SN50v3-LB is shipped with a sticker with the default device EUI as below:
2.1	172
11.2	173	[[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	174
	175
	176	You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
	177
	178
	179	(% style="color:blue" %)Register the device
	180
	181	[[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"]]
	182
	183
	184	(% style="color:blue" %)Add APP EUI and DEV EUI
	185
	186	[[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"]]
	187
	188
	189	(% style="color:blue" %)Add APP EUI in the application
	190
	191
	192	[[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"]]
	193
	194
	195	(% style="color:blue" %)Add APP KEY
	196
	197	[[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"]]
	198
	199
11.2	200	(% style="color:blue" %)Step 2:(%%) Activate SN50v3-LB
2.1	201
	202
11.2	203	Press the button for 5 seconds to activate the SN50v3-LB.
2.1	204
	205	(% 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.
	206
	207	After join success, it will start to upload messages to TTN and you can see the messages in the panel.
	208
	209
	210	== 2.3 Uplink Payload ==
	211
	212	=== 2.3.1 Device Status, FPORT~=5 ===
	213
	214
44.3	215	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	216
	217	The Payload format is as below.
	218
	219
	220	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	221	\|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)Device Status (FPORT=5)
	222	\|(% style="width:103px" %)Size (bytes)\|(% style="width:72px" %)1\|2\|(% style="width:91px" %)1\|(% style="width:86px" %)1\|(% style="width:44px" %)2
45.4	223	\|(% 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	224
	225	Example parse in TTNv3
	226
	227
44.3	228	(% style="color:#037691" %)Sensor Model(%%): For SN50v3-LB, this value is 0x1C
2.1	229
	230	(% style="color:#037691" %)Firmware Version(%%): 0x0100, Means: v1.0.0 version
	231
	232	(% style="color:#037691" %)Frequency Band:
	233
53.2	234	0x01: EU868
2.1	235
53.2	236	0x02: US915
2.1	237
53.2	238	0x03: IN865
2.1	239
53.2	240	0x04: AU915
2.1	241
53.2	242	0x05: KZ865
2.1	243
53.2	244	0x06: RU864
2.1	245
53.2	246	0x07: AS923
2.1	247
53.2	248	0x08: AS923-1
2.1	249
53.2	250	0x09: AS923-2
2.1	251
53.2	252	0x0a: AS923-3
2.1	253
53.2	254	0x0b: CN470
2.1	255
53.2	256	0x0c: EU433
2.1	257
53.2	258	0x0d: KR920
2.1	259
53.2	260	0x0e: MA869
2.1	261
	262
	263	(% style="color:#037691" %)Sub-Band:
	264
	265	AU915 and US915:value 0x00 ~~ 0x08
	266
	267	CN470: value 0x0B ~~ 0x0C
	268
	269	Other Bands: Always 0x00
	270
	271
	272	(% style="color:#037691" %)Battery Info:
	273
	274	Check the battery voltage.
	275
	276	Ex1: 0x0B45 = 2885mV
	277
	278	Ex2: 0x0B49 = 2889mV
	279
	280
12.1	281	=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===
2.1	282
	283
44.2	284	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	285
	286	For example:
	287
44.2	288	(% 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	289
	290
13.1	291	(% style="color:red" %) Important Notice:
12.1	292
44.3	293	~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	294
44.2	295	2. All modes share the same Payload Explanation from HERE.
43.53	296
44.2	297	3. By default, the device will send an uplink message every 20 minutes.
	298
	299
13.1	300	==== 2.3.2.1 MOD~=1 (Default Mode) ====
12.1	301
43.5	302
12.1	303	In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
	304
43.5	305	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	306	\|(% 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	307	\|Value\|Bat\|(% style="width:191px" %)(((
43.12	308	Temperature(DS18B20)(PC13)
40.1	309	)))\|(% style="width:78px" %)(((
43.12	310	ADC(PA4)
26.2	311	)))\|(% style="width:216px" %)(((
43.13	312	Digital in(PB15)&Digital Interrupt(PA8)
40.1	313	)))\|(% style="width:308px" %)(((
43.12	314	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
40.1	315	)))\|(% style="width:154px" %)(((
43.12	316	Humidity(SHT20 or SHT31)
36.1	317	)))
	318
12.1	319	[[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"]]
	320
	321
13.1	322	==== 2.3.2.2 MOD~=2 (Distance Mode) ====
	323
43.45	324
12.1	325	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.
	326
43.14	327	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.54	328	\|(% 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	329	\|Value\|BAT\|(% style="width:196px" %)(((
43.16	330	Temperature(DS18B20)(PC13)
40.1	331	)))\|(% style="width:87px" %)(((
43.16	332	ADC(PA4)
40.1	333	)))\|(% style="width:189px" %)(((
43.16	334	Digital in(PB15) & Digital Interrupt(PA8)
40.1	335	)))\|(% style="width:208px" %)(((
53.2	336	Distance measure by: 1) LIDAR-Lite V3HP
	337	Or 2) Ultrasonic Sensor
40.1	338	)))\|(% style="width:117px" %)Reserved
12.1	339
	340	[[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"]]
	341
43.45	342
43.17	343	(% style="color:blue" %)Connection of LIDAR-Lite V3HP:
12.1	344
26.2	345	[[image:image-20230512173758-5.png\|\|height="563" width="712"]]
12.1	346
43.45	347
43.17	348	(% style="color:blue" %)Connection to Ultrasonic Sensor:
12.1	349
44.1	350	(% style="color:red" %)Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.
36.1	351
26.2	352	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
12.1	353
43.45	354
12.1	355	For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:
	356
43.19	357	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	358	\|(% 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	359	\|Value\|BAT\|(% style="width:183px" %)(((
43.19	360	Temperature(DS18B20)(PC13)
40.1	361	)))\|(% style="width:173px" %)(((
43.19	362	Digital in(PB15) & Digital Interrupt(PA8)
40.1	363	)))\|(% style="width:84px" %)(((
43.19	364	ADC(PA4)
40.1	365	)))\|(% style="width:323px" %)(((
12.1	366	Distance measure by:1)TF-Mini plus LiDAR
53.3	367	Or 2) TF-Luna LiDAR
40.1	368	)))\|(% style="width:188px" %)Distance signal strength
12.1	369
	370	[[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"]]
	371
43.45	372
12.1	373	Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):
	374
44.1	375	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	376
26.2	377	[[image:image-20230512180609-7.png\|\|height="555" width="802"]]
12.1	378
43.45	379
12.1	380	Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):
	381
44.1	382	(% style="color:red" %)Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.
12.1	383
52.1	384	[[image:image-20230610170047-1.png\|\|height="452" width="799"]]
12.1	385
	386
13.1	387	==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====
	388
43.45	389
12.1	390	This mode has total 12 bytes. Include 3 x ADC + 1x I2C
	391
43.21	392	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.25	393	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
	394	Size(bytes)
43.54	395	)))\|=(% 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	396	\|Value\|(% style="width:68px" %)(((
43.23	397	ADC1(PA4)
26.2	398	)))\|(% style="width:75px" %)(((
43.23	399	ADC2(PA5)
36.1	400	)))\|(((
43.23	401	ADC3(PA8)
36.1	402	)))\|(((
	403	Digital Interrupt(PB15)
	404	)))\|(% style="width:304px" %)(((
43.23	405	Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
36.1	406	)))\|(% style="width:163px" %)(((
43.23	407	Humidity(SHT20 or SHT31)
36.1	408	)))\|(% style="width:53px" %)Bat
	409
	410	[[image:image-20230513110214-6.png]]
	411
	412
13.1	413	==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====
	414
12.1	415
26.2	416	This mode has total 11 bytes. As shown below:
12.1	417
43.26	418	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.44	419	\|(% 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	420	\|Value\|BAT\|(% style="width:186px" %)(((
43.27	421	Temperature1(DS18B20)(PC13)
26.2	422	)))\|(% style="width:82px" %)(((
43.27	423	ADC(PA4)
26.2	424	)))\|(% style="width:210px" %)(((
43.27	425	Digital in(PB15) & Digital Interrupt(PA8)
26.2	426	)))\|(% style="width:191px" %)Temperature2(DS18B20)
43.27	427	(PB9)\|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
12.1	428
	429	[[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"]]
	430
44.4	431
39.2	432	[[image:image-20230513134006-1.png\|\|height="559" width="736"]]
12.1	433
39.1	434
13.1	435	==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====
	436
43.45	437
26.2	438	[[image:image-20230512164658-2.png\|\|height="532" width="729"]]
12.1	439
	440	Each HX711 need to be calibrated before used. User need to do below two steps:
	441
44.2	442	1. Zero calibration. Don't put anything on load cell and run (% style="color:blue" %)AT+WEIGRE(%%) to calibrate to Zero gram.
	443	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	444	1. (((
26.2	445	Weight has 4 bytes, the unit is g.
43.53	446
	447
	448
12.1	449	)))
	450
	451	For example:
	452
44.2	453	(% style="color:blue" %)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
45.4	463	\|Value\|BAT\|(% style="width:193px" %)(((
43.55	464	Temperature(DS18B20)(PC13)
40.1	465	)))\|(% style="width:85px" %)(((
43.31	466	ADC(PA4)
40.1	467	)))\|(% style="width:186px" %)(((
43.55	468	Digital in(PB15) & Digital Interrupt(PA8)
40.1	469	)))\|(% style="width:100px" %)Weight
26.2	470
12.1	471	[[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"]]
	472
	473
13.1	474	==== 2.3.2.6 MOD~=6 (Counting Mode) ====
	475
43.45	476
12.1	477	In this mode, the device will work in counting mode. It counts the interrupt on the interrupt pins and sends the count on TDC time.
	478
	479	Connection is as below. The PIR sensor is a count sensor, it will generate interrupt when people come close or go away. User can replace the PIR sensor with other counting sensors.
	480
26.2	481	[[image:image-20230512181814-9.png\|\|height="543" width="697"]]
12.1	482
43.53	483
43.45	484	(% style="color:red" %)Note: LoRaWAN wireless transmission will infect the PIR sensor. Which cause the counting value increase +1 for every uplink. User can change PIR sensor or put sensor away of the SN50_v3 to avoid this happen.
12.1	485
43.38	486	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.57	487	\|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)Size(bytes)\|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 180px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)2\|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)1\|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)4
45.4	488	\|Value\|BAT\|(% style="width:256px" %)(((
43.31	489	Temperature(DS18B20)(PC13)
36.1	490	)))\|(% style="width:108px" %)(((
43.31	491	ADC(PA4)
36.1	492	)))\|(% style="width:126px" %)(((
43.31	493	Digital in(PB15)
36.1	494	)))\|(% style="width:145px" %)(((
43.31	495	Count(PA8)
36.1	496	)))
	497
12.1	498	[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656378441509-171.png?rev=1.1\|\|alt="1656378441509-171.png"]]
	499
	500
13.1	501	==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====
	502
43.45	503
43.38	504	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.33	505	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	506	Size(bytes)
43.34	507	)))\|=(% 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	508	\|Value\|BAT\|(% style="width:188px" %)(((
36.1	509	Temperature(DS18B20)
	510	(PC13)
40.1	511	)))\|(% style="width:83px" %)(((
43.35	512	ADC(PA5)
40.1	513	)))\|(% style="width:184px" %)(((
36.1	514	Digital Interrupt1(PA8)
40.1	515	)))\|(% style="width:186px" %)Digital Interrupt2(PA4)\|(% style="width:197px" %)Digital Interrupt3(PB15)\|(% style="width:100px" %)Reserved
36.1	516
	517	[[image:image-20230513111203-7.png\|\|height="324" width="975"]]
	518
43.45	519
13.1	520	==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====
	521
43.45	522
43.38	523	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
43.35	524	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	525	Size(bytes)
43.55	526	)))\|=(% 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	527	\|Value\|BAT\|(% style="width:207px" %)(((
36.1	528	Temperature(DS18B20)
	529	(PC13)
	530	)))\|(% style="width:94px" %)(((
43.36	531	ADC1(PA4)
36.1	532	)))\|(% style="width:198px" %)(((
	533	Digital Interrupt(PB15)
	534	)))\|(% style="width:84px" %)(((
43.36	535	ADC2(PA5)
40.1	536	)))\|(% style="width:82px" %)(((
43.36	537	ADC3(PA8)
12.1	538	)))
	539
36.1	540	[[image:image-20230513111231-8.png\|\|height="335" width="900"]]
12.1	541
	542
13.1	543	==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====
	544
43.45	545
43.38	546	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
	547	\|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
12.1	548	Size(bytes)
43.56	549	)))\|=(% 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	550	\|Value\|BAT\|(((
43.58	551	Temperature
	552	(DS18B20)(PC13)
12.1	553	)))\|(((
43.58	554	Temperature2
	555	(DS18B20)(PB9)
12.1	556	)))\|(((
36.1	557	Digital Interrupt
	558	(PB15)
	559	)))\|(% style="width:193px" %)(((
43.58	560	Temperature3
	561	(DS18B20)(PB8)
36.1	562	)))\|(% style="width:78px" %)(((
43.39	563	Count1(PA8)
36.1	564	)))\|(% style="width:78px" %)(((
43.39	565	Count2(PA4)
12.1	566	)))
	567
36.1	568	[[image:image-20230513111255-9.png\|\|height="341" width="899"]]
12.1	569
43.40	570	(% style="color:blue" %)The newly added AT command is issued correspondingly:
12.1	571
43.44	572	(% style="color:#037691" %) AT+INTMOD1 PA8(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 00 xx
12.1	573
43.44	574	(% style="color:#037691" %) AT+INTMOD2 PA4(%%) pin： Corresponding downlink: (% style="color:#037691" %)06 00 01 xx
12.1	575
43.44	576	(% style="color:#037691" %) AT+INTMOD3 PB15(%%) pin： Corresponding downlink: (% style="color:#037691" %) 06 00 02 xx
12.1	577
	578
43.41	579	(% style="color:blue" %)AT+SETCNT=aa,bb
	580
36.1	581	When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
12.1	582
36.1	583	When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
12.1	584
	585
65.1	586	==== 2.3.2.10 MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
	587
74.8	588	(% style="color:red" %)Note: Firmware not release, contact Dragino for testing.
74.3	589
65.1	590	In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
	591
74.3	592	[[It should be noted when using PWM mode.>>\|\|anchor="H2.3.3.12A0PWMMOD"]]
65.1	593
69.1	594
65.1	595	===== 2.3.2.10.a Uplink, PWM input capture =====
	596
74.3	597
65.1	598	[[image:image-20230817172209-2.png\|\|height="439" width="683"]]
	599
79.2	600	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:515px" %)
	601	\|(% 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:135px" %)1\|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)2\|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)2
65.1	602	\|Value\|Bat\|(% style="width:191px" %)(((
	603	Temperature(DS18B20)(PC13)
	604	)))\|(% style="width:78px" %)(((
	605	ADC(PA4)
	606	)))\|(% style="width:135px" %)(((
	607	PWM_Setting
	608	&Digital Interrupt(PA8)
	609	)))\|(% style="width:70px" %)(((
	610	Pulse period
	611	)))\|(% style="width:89px" %)(((
	612	Duration of high level
	613	)))
	614
	615	[[image:image-20230817170702-1.png\|\|height="161" width="1044"]]
	616
	617
72.1	618	When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
65.1	619
74.4	620	Frequency：
65.1	621
72.1	622	(% class="MsoNormal" %)
74.4	623	(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)AT+PWMSET(%%)=0, (% lang="EN-US" %)Frequency= 1000000/(%%)Pulse period（HZ）;
65.1	624
72.1	625	(% class="MsoNormal" %)
74.4	626	(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)AT+PWMSET(%%)=1, (% lang="EN-US" %)Frequency= 1000/(%%)Pulse period（HZ）;
72.1	627
74.4	628
72.1	629	(% class="MsoNormal" %)
74.4	630	Duty cycle:
72.1	631
	632	Duty cycle= Duration of high level/ Pulse period*100 ~(%).
	633
	634	[[image:image-20230818092200-1.png\|\|height="344" width="627"]]
	635
77.1	636	===== 2.3.2.10.b Uplink, PWM output =====
72.1	637
77.1	638	[[image:image-20230817172209-2.png\|\|height="439" width="683"]]
65.1	639
79.1	640	(% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)AT+PWMOUT=a,b,c
74.3	641
79.1	642	a is the time delay of the output, the unit is ms.
75.1	643
79.1	644	b is the output frequency, the unit is HZ.
75.1	645
79.1	646	c is the duty cycle of the output, the unit is %.
75.1	647
79.1	648	(% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)Downlink(%%): (% style="color:#037691" %)0B 01 bb cc aa
75.1	649
79.1	650	aa is the time delay of the output, the unit is ms.
	651
	652	bb is the output frequency, the unit is HZ.
	653
	654	cc is the duty cycle of the output, the unit is %.
	655
	656
	657	For example, send a AT command: AT+PWMOUT=65535,1000,50 The PWM is always out, the frequency is 1000HZ, and the duty cycle is 50.
	658
	659	The oscilloscope displays as follows:
	660
	661	[[image:image-20231213102404-1.jpeg\|\|height="780" width="932"]]
	662
	663
75.1	664	===== 2.3.2.10.c Downlink, PWM output =====
	665
	666
65.1	667	[[image:image-20230817173800-3.png\|\|height="412" width="685"]]
	668
	669	Downlink: (% style="color:#037691" %)0B xx xx xx yy zz zz
	670
	671	xx xx xx is the output frequency, the unit is HZ.
	672
	673	yy is the duty cycle of the output, the unit is %.
	674
	675	zz zz is the time delay of the output, the unit is ms.
	676
	677
	678	For example, send a downlink command: 0B 00 61 A8 32 13 88, the frequency is 25KHZ, the duty cycle is 50, and the output time is 5 seconds.
	679
	680	The oscilloscope displays as follows:
	681
	682	[[image:image-20230817173858-5.png\|\|height="694" width="921"]]
	683
	684
14.1	685	=== 2.3.3 Decode payload ===
	686
43.45	687
12.1	688	While using TTN V3 network, you can add the payload format to decode the payload.
	689
	690	[[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"]]
	691
	692	The payload decoder function for TTN V3 are here:
	693
44.2	694	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	695
	696
14.1	697	==== 2.3.3.1 Battery Info ====
2.1	698
43.45	699
44.2	700	Check the battery voltage for SN50v3-LB.
2.1	701
	702	Ex1: 0x0B45 = 2885mV
	703
	704	Ex2: 0x0B49 = 2889mV
	705
	706
14.1	707	==== 2.3.3.2 Temperature (DS18B20) ====
2.1	708
43.45	709
42.1	710	If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.
2.1	711
43.45	712	More DS18B20 can check the [[3 DS18B20 mode>>\|\|anchor="H2.3.2.4MOD3D4283xDS18B2029"]]
14.1	713
43.41	714	(% style="color:blue" %)Connection:
14.1	715
26.2	716	[[image:image-20230512180718-8.png\|\|height="538" width="647"]]
14.1	717
43.46	718
43.41	719	(% style="color:blue" %)Example:
2.1	720
	721	If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
	722
	723	If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
	724
	725	（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
	726
	727
14.1	728	==== 2.3.3.3 Digital Input ====
2.1	729
43.46	730
26.2	731	The digital input for pin PB15,
2.1	732
26.2	733	* When PB15 is high, the bit 1 of payload byte 6 is 1.
	734	* When PB15 is low, the bit 1 of payload byte 6 is 0.
2.1	735
26.2	736	(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)
	737	(((
36.1	738	When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
	739
43.46	740	(% style="color:red" %)Note: The maximum voltage input supports 3.6V.
	741
	742
26.2	743	)))
	744
14.1	745	==== 2.3.3.4 Analogue Digital Converter (ADC) ====
2.1	746
43.46	747
53.1	748	The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
2.1	749
53.1	750	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	751
26.2	752	[[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	753
44.2	754
43.46	755	(% 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	756
43.1	757
59.1	758	The position of PA5 on the hardware after LSN50 v3.3 is changed to the position shown in the figure below, and the collected voltage becomes one-sixth of the original.
	759
	760	[[image:image-20230811113449-1.png\|\|height="370" width="608"]]
	761
14.1	762	==== 2.3.3.5 Digital Interrupt ====
	763
43.46	764
44.2	765	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	766
43.44	767	(% style="color:blue" %) Interrupt connection method:
14.1	768
36.1	769	[[image:image-20230513105351-5.png\|\|height="147" width="485"]]
14.1	770
43.46	771
43.8	772	(% style="color:blue" %)Example to use with door sensor :
14.1	773
	774	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.
	775
	776	[[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"]]
	777
44.2	778	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	779
	780
43.46	781	(% style="color:blue" %)Below is the installation example:
	782
44.2	783	Fix one piece of the magnetic sensor to the door and connect the two pins to SN50v3-LB as follows:
14.1	784
	785	* (((
44.2	786	One pin to SN50v3-LB's PA8 pin
14.1	787	)))
	788	* (((
44.2	789	The other pin to SN50v3-LB's VDD pin
14.1	790	)))
	791
36.1	792	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	793
43.46	794	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	795
36.1	796	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	797
	798	[[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"]]
	799
	800	The above photos shows the two parts of the magnetic switch fitted to a door.
	801
	802	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.
	803
	804	The command is:
	805
44.2	806	(% 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	807
	808	Below shows some screen captures in TTN V3:
	809
	810	[[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"]]
	811
43.47	812
44.4	813	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	814
	815	door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
	816
	817
26.2	818	==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
14.1	819
43.47	820
26.2	821	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	822
40.1	823	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	824
44.2	825	(% 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	826
44.2	827
14.1	828	Below is the connection to SHT20/ SHT31. The connection is as below:
	829
52.1	830	[[image:image-20230610170152-2.png\|\|height="501" width="846"]]
36.1	831
44.4	832
14.1	833	The device will be able to get the I2C sensor data now and upload to IoT Server.
	834
	835	[[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"]]
	836
	837	Convert the read byte to decimal and divide it by ten.
	838
2.1	839	Example:
	840
14.1	841	Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;
2.1	842
14.1	843	Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%
2.1	844
14.1	845	If you want to use other I2C device, please refer the SHT20 part source code as reference.
2.1	846
	847
14.1	848	==== 2.3.3.7 Distance Reading ====
2.1	849
43.48	850
43.42	851	Refer [[Ultrasonic Sensor section>>\|\|anchor="H2.3.3.8UltrasonicSensor"]].
14.1	852
	853
	854	==== 2.3.3.8 Ultrasonic Sensor ====
	855
43.48	856
26.2	857	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	858
44.2	859	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	860
43.44	861	The working principle of this sensor is similar to the (% style="color:blue" %)HC-SR04(%%) ultrasonic sensor.
36.1	862
14.1	863	The picture below shows the connection:
	864
36.1	865	[[image:image-20230512173903-6.png\|\|height="596" width="715"]]
14.1	866
43.50	867
44.2	868	Connect to the SN50v3-LB and run (% style="color:blue" %)AT+MOD=2(%%) to switch to ultrasonic mode (ULT).
14.1	869
	870	The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
	871
	872	Example:
	873
	874	Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm
	875
	876
	877	==== 2.3.3.9 Battery Output - BAT pin ====
	878
43.50	879
44.4	880	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	881
	882
	883	==== 2.3.3.10 +5V Output ====
	884
43.50	885
44.2	886	SN50v3-LB will enable +5V output before all sampling and disable the +5v after all sampling.
14.1	887
	888	The 5V output time can be controlled by AT Command.
	889
43.9	890	(% style="color:blue" %)AT+5VT=1000
14.1	891
	892	Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
	893
44.4	894	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	895
	896
	897	==== 2.3.3.11 BH1750 Illumination Sensor ====
	898
43.50	899
14.1	900	MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
	901
40.1	902	[[image:image-20230512172447-4.png\|\|height="416" width="712"]]
14.1	903
43.51	904
40.1	905	[[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	906
	907
65.1	908	==== 2.3.3.12 PWM MOD ====
14.1	909
43.51	910
69.1	911	* (((
	912	The maximum voltage that the SDA pin of SN50v3 can withstand is 3.6V, and it cannot exceed this voltage value, otherwise the chip may be burned.
	913	)))
	914	* (((
	915	If the PWM pin connected to the SDA pin cannot maintain a high level when it is not working, you need to remove the resistor R2 or replace it with a resistor with a larger resistance, otherwise a sleep current of about 360uA will be generated. The position of the resistor is shown in the figure below:
	916	)))
	917
	918	[[image:image-20230817183249-3.png\|\|height="320" width="417"]]
	919
	920	* (((
	921	The signal captured by the input should preferably be processed by hardware filtering and then connected in. The software processing method is to capture four values, discard the first captured value, and then take the middle value of the second, third, and fourth captured values.
	922	)))
	923	* (((
74.2	924	Since the device can only detect a pulse period of 50ms when [[AT+PWMSET=0>>\|\|anchor="H3.3.8PWMsetting"]] (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
74.8	925	)))
	926	* (((
76.1	927	PWM Input allows low power consumption. PWM Output to achieve real-time control, you need to go to class C. Power consumption will not be low.
70.1	928
74.8	929	For PWM Output Feature, there are two consideration to see if the device can be powered by battery or have to be powered by external DC.
74.5	930
76.1	931	a) If real-time control output is required, the SN50v3-LB is already operating in class C and an external power supply must be used.
74.8	932
76.1	933	b) If the output duration is more than 30 seconds, better to use external power source.
74.8	934
	935
70.1	936
69.1	937	)))
	938
65.1	939	==== 2.3.3.13 Working MOD ====
	940
	941
14.1	942	The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
	943
	944	User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:
	945
	946	Case 7^^th^^ Byte >> 2 & 0x1f:
	947
	948	* 0: MOD1
	949	* 1: MOD2
	950	* 2: MOD3
	951	* 3: MOD4
	952	* 4: MOD5
	953	* 5: MOD6
36.1	954	* 6: MOD7
	955	* 7: MOD8
	956	* 8: MOD9
65.1	957	* 9: MOD10
14.1	958
2.1	959	== 2.4 Payload Decoder file ==
	960
	961
	962	In TTN, use can add a custom payload so it shows friendly reading
	963
	964	In the page (% style="color:#037691" %)Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder(%%) to add the decoder from:
	965
40.1	966	[[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	967
	968
15.1	969	== 2.5 Frequency Plans ==
2.1	970
	971
15.1	972	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	973
	974	[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
	975
	976
16.1	977	= 3. Configure SN50v3-LB =
2.1	978
	979	== 3.1 Configure Methods ==
	980
	981
16.1	982	SN50v3-LB supports below configure method:
2.1	983
	984	* AT Command via Bluetooth Connection (Recommended): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
	985	* 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]].
	986	* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
	987
	988	== 3.2 General Commands ==
	989
	990
	991	These commands are to configure:
	992
	993	* General system settings like: uplink interval.
	994	* LoRaWAN protocol & radio related command.
	995
	996	They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:
	997
	998	[[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/]]
	999
	1000
16.1	1001	== 3.3 Commands special design for SN50v3-LB ==
2.1	1002
	1003
44.2	1004	These commands only valid for SN50v3-LB, as below:
2.1	1005
	1006
	1007	=== 3.3.1 Set Transmit Interval Time ===
	1008
43.51	1009
2.1	1010	Feature: Change LoRaWAN End Node Transmit Interval.
	1011
	1012	(% style="color:blue" %)AT Command: AT+TDC
	1013
	1014	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.2	1015	\|=(% 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	1016	\|(% style="width:156px" %)AT+TDC=?\|(% style="width:137px" %)Show current transmit Interval\|(((
	1017	30000
	1018	OK
	1019	the interval is 30000ms = 30s
	1020	)))
	1021	\|(% style="width:156px" %)AT+TDC=60000\|(% style="width:137px" %)Set Transmit Interval\|(((
	1022	OK
	1023	Set transmit interval to 60000ms = 60 seconds
	1024	)))
	1025
	1026	(% style="color:blue" %)Downlink Command: 0x01
	1027
	1028	Format: Command Code (0x01) followed by 3 bytes time value.
	1029
	1030	If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.
	1031
	1032	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
	1033	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
	1034
	1035	=== 3.3.2 Get Device Status ===
	1036
43.52	1037
40.1	1038	Send a LoRaWAN downlink to ask the device to send its status.
2.1	1039
44.4	1040	(% style="color:blue" %)Downlink Payload: 0x26 01
2.1	1041
44.4	1042	Sensor will upload Device Status via FPORT=5. See payload section for detail.
2.1	1043
	1044
36.1	1045	=== 3.3.3 Set Interrupt Mode ===
2.1	1046
43.52	1047
2.1	1048	Feature, Set Interrupt mode for GPIO_EXIT.
	1049
36.1	1050	(% style="color:blue" %)AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3
2.1	1051
	1052	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1053	\|=(% 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	1054	\|(% style="width:154px" %)AT+INTMOD1=?\|(% style="width:196px" %)Show current interrupt mode\|(% style="width:157px" %)(((
2.1	1055	0
	1056	OK
	1057	the mode is 0 =Disable Interrupt
	1058	)))
36.1	1059	\|(% style="width:154px" %)AT+INTMOD1=2\|(% style="width:196px" %)(((
2.1	1060	Set Transmit Interval
	1061	0. (Disable Interrupt),
	1062	~1. (Trigger by rising and falling edge)
	1063	2. (Trigger by falling edge)
	1064	3. (Trigger by rising edge)
	1065	)))\|(% style="width:157px" %)OK
36.1	1066	\|(% style="width:154px" %)AT+INTMOD2=3\|(% style="width:196px" %)(((
	1067	Set Transmit Interval
	1068	trigger by rising edge.
	1069	)))\|(% style="width:157px" %)OK
	1070	\|(% style="width:154px" %)AT+INTMOD3=0\|(% style="width:196px" %)Disable Interrupt\|(% style="width:157px" %)OK
	1071
2.1	1072	(% style="color:blue" %)Downlink Command: 0x06
	1073
	1074	Format: Command Code (0x06) followed by 3 bytes.
	1075
	1076	This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
	1077
36.1	1078	* Example 1: Downlink Payload: 06000000 ~-~--> AT+INTMOD1=0
	1079	* Example 2: Downlink Payload: 06000003 ~-~--> AT+INTMOD1=3
	1080	* Example 3: Downlink Payload: 06000102 ~-~--> AT+INTMOD2=2
	1081	* Example 4: Downlink Payload: 06000201 ~-~--> AT+INTMOD3=1
2.1	1082
36.1	1083	=== 3.3.4 Set Power Output Duration ===
	1084
43.52	1085
36.1	1086	Control the output duration 5V . Before each sampling, device will
	1087
	1088	~1. first enable the power output to external sensor,
	1089
	1090	2. keep it on as per duration, read sensor value and construct uplink payload
	1091
	1092	3. final, close the power output.
	1093
	1094	(% style="color:blue" %)AT Command: AT+5VT
	1095
	1096	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1097	\|=(% 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	1098	\|(% style="width:154px" %)AT+5VT=?\|(% style="width:196px" %)Show 5V open time.\|(% style="width:157px" %)(((
	1099	500(default)
	1100	OK
	1101	)))
	1102	\|(% style="width:154px" %)AT+5VT=1000\|(% style="width:196px" %)(((
	1103	Close after a delay of 1000 milliseconds.
	1104	)))\|(% style="width:157px" %)OK
	1105
	1106	(% style="color:blue" %)Downlink Command: 0x07
	1107
	1108	Format: Command Code (0x07) followed by 2 bytes.
	1109
	1110	The first and second bytes are the time to turn on.
	1111
40.1	1112	* Example 1: Downlink Payload: 070000 ~-~--> AT+5VT=0
	1113	* Example 2: Downlink Payload: 0701F4 ~-~--> AT+5VT=500
36.1	1114
	1115	=== 3.3.5 Set Weighing parameters ===
	1116
43.52	1117
37.1	1118	Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
36.1	1119
	1120	(% style="color:blue" %)AT Command: AT+WEIGRE,AT+WEIGAP
	1121
	1122	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1123	\|=(% 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	1124	\|(% style="width:154px" %)AT+WEIGRE\|(% style="width:196px" %)Weight is initialized to 0.\|(% style="width:157px" %)OK
	1125	\|(% style="width:154px" %)AT+WEIGAP=？\|(% style="width:196px" %)400.0\|(% style="width:157px" %)OK(default)
	1126	\|(% style="width:154px" %)AT+WEIGAP=400.3\|(% style="width:196px" %)Set the factor to 400.3.\|(% style="width:157px" %)OK
36.1	1127
	1128	(% style="color:blue" %)Downlink Command: 0x08
	1129
37.1	1130	Format: Command Code (0x08) followed by 2 bytes or 4 bytes.
36.1	1131
37.1	1132	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	1133
37.1	1134	The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.
36.1	1135
37.1	1136	* Example 1: Downlink Payload: 0801 ~-~--> AT+WEIGRE
	1137	* Example 2: Downlink Payload: 08020FA3 ~-~--> AT+WEIGAP=400.3
	1138	* Example 3: Downlink Payload: 08020FA0 ~-~--> AT+WEIGAP=400.0
	1139
36.1	1140	=== 3.3.6 Set Digital pulse count value ===
	1141
43.52	1142
36.1	1143	Feature: Set the pulse count value.
	1144
37.1	1145	Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
	1146
36.1	1147	(% style="color:blue" %)AT Command: AT+SETCNT
	1148
	1149	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1150	\|=(% 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	1151	\|(% style="width:154px" %)AT+SETCNT=1,100\|(% style="width:196px" %)Initialize the count value 1 to 100.\|(% style="width:157px" %)OK
	1152	\|(% style="width:154px" %)AT+SETCNT=2,0\|(% style="width:196px" %)Initialize the count value 2 to 0.\|(% style="width:157px" %)OK
	1153
	1154	(% style="color:blue" %)Downlink Command: 0x09
	1155
	1156	Format: Command Code (0x09) followed by 5 bytes.
	1157
	1158	The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.
	1159
	1160	* Example 1: Downlink Payload: 090100000000 ~-~--> AT+SETCNT=1,0
37.1	1161	* Example 2: Downlink Payload: 0902000003E8 ~-~--> AT+SETCNT=2,1000
36.1	1162
	1163	=== 3.3.7 Set Workmode ===
	1164
43.52	1165
37.1	1166	Feature: Switch working mode.
36.1	1167
	1168	(% style="color:blue" %)AT Command: AT+MOD
	1169
	1170	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
52.3	1171	\|=(% 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	1172	\|(% style="width:154px" %)AT+MOD=?\|(% style="width:196px" %)Get the current working mode.\|(% style="width:157px" %)(((
	1173	OK
	1174	)))
	1175	\|(% style="width:154px" %)AT+MOD=4\|(% style="width:196px" %)Set the working mode to 3DS18B20s.\|(% style="width:157px" %)(((
	1176	OK
	1177	Attention:Take effect after ATZ
	1178	)))
	1179
	1180	(% style="color:blue" %)Downlink Command: 0x0A
	1181
	1182	Format: Command Code (0x0A) followed by 1 bytes.
	1183
	1184	* Example 1: Downlink Payload: 0A01 ~-~--> AT+MOD=1
	1185	* Example 2: Downlink Payload: 0A04 ~-~--> AT+MOD=4
	1186
77.1	1187	(% id="H3.3.8PWMsetting" %)
72.1	1188	=== 3.3.8 PWM setting ===
	1189
74.5	1190
77.1	1191	(% class="mark" %)Feature: Set the time acquisition unit for PWM input capture.
72.1	1192
	1193	(% style="color:blue" %)AT Command: AT+PWMSET
	1194
	1195	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
77.1	1196	\|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)Command Example\|=(% style="width: 223px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Function\|=(% style="width: 130px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Response
	1197	\|(% style="width:154px" %)AT+PWMSET=?\|(% style="width:223px" %)0\|(% style="width:130px" %)(((
72.1	1198	0(default)
	1199
	1200	OK
	1201	)))
77.1	1202	\|(% style="width:154px" %)AT+PWMSET=0\|(% style="width:223px" %)The unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ. \|(% style="width:130px" %)(((
72.1	1203	OK
	1204
	1205	)))
77.1	1206	\|(% style="width:154px" %)AT+PWMSET=1\|(% style="width:223px" %)The unit of PWM capture time is millisecond. The capture frequency range is between 5HZ and 250HZ. \|(% style="width:130px" %)OK
72.1	1207
	1208	(% style="color:blue" %)Downlink Command: 0x0C
	1209
	1210	Format: Command Code (0x0C) followed by 1 bytes.
	1211
	1212	* Example 1: Downlink Payload: 0C00 ~-~--> AT+PWMSET=0
	1213	* Example 2: Downlink Payload: 0C01 ~-~--> AT+PWMSET=1
	1214
79.1	1215	(% class="mark" %)Feature: Set PWM output time, output frequency and output duty cycle.
77.1	1216
76.1	1217	(% style="color:blue" %)AT Command: AT+PWMOUT
75.1	1218
77.1	1219	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1220	\|=(% style="width: 183px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Command Example\|=(% style="width: 193px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Function\|=(% style="width: 137px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Response
	1221	\|(% style="width:183px" %)AT+PWMOUT=?\|(% style="width:193px" %)0\|(% style="width:137px" %)(((
76.1	1222	0,0,0(default)
75.1	1223
76.1	1224	OK
	1225	)))
77.1	1226	\|(% style="width:183px" %)AT+PWMOUT=0,0,0\|(% style="width:193px" %)The default is PWM input detection\|(% style="width:137px" %)(((
76.1	1227	OK
	1228
	1229	)))
77.1	1230	\|(% style="width:183px" %)AT+PWMOUT=5,1000,50\|(% style="width:193px" %)(((
	1231	The PWM output time is 5ms, the output frequency is 1000HZ, and the output duty cycle is 50%.
75.1	1232
77.1	1233
	1234	)))\|(% style="width:137px" %)(((
	1235	OK
	1236	)))
	1237
	1238	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1239	\|=(% style="width: 155px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Command Example\|=(% style="width: 112px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)Function\|=(% style="width: 242px; background-color: rgb(217, 226, 243); color: rgb(0, 112, 192);" %)parameters
	1240	\|(% colspan="1" rowspan="3" style="width:155px" %)(((
	1241	AT+PWMOUT=a,b,c
	1242
	1243
	1244	)))\|(% colspan="1" rowspan="3" style="width:112px" %)(((
79.1	1245	Set PWM output time, output frequency and output duty cycle.
	1246
	1247	(((
77.1	1248
	1249	)))
	1250
	1251	(((
	1252
	1253	)))
	1254	)))\|(% style="width:242px" %)(((
76.1	1255	a: Output time (unit: seconds)
75.1	1256
77.1	1257	The value ranges from 0 to 65535.
	1258
	1259	When a=65535, PWM will always output.
	1260	)))
	1261	\|(% style="width:242px" %)(((
76.1	1262	b: Output frequency (unit: HZ)
77.1	1263	)))
	1264	\|(% style="width:242px" %)(((
	1265	c: Output duty cycle (unit: %)
76.1	1266
77.1	1267	The value ranges from 0 to 100.
76.1	1268	)))
	1269
77.1	1270	(% style="color:blue" %)Downlink Command: 0x0B01
76.1	1271
77.1	1272	Format: Command Code (0x0B01) followed by 6 bytes.
76.1	1273
77.1	1274	Downlink payload：0B01 bb cc aa ~-~--> AT+PWMOUT=a,b,c
76.1	1275
77.1	1276	* Example 1: Downlink Payload: 0B01 03E8 0032 0005 ~-~--> AT+PWMSET=5,1000,50
	1277	* Example 2: Downlink Payload: 0B01 07D0 003C 000A ~-~--> AT+PWMSET=10,2000,60
76.1	1278
79.1	1279	= 4. Battery & Power Cons =
	1280
	1281
11.1	1282	SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
2.1	1283
	1284	[[Battery Info & Power Consumption Analyze>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
	1285
	1286
	1287	= 5. OTA Firmware update =
	1288
	1289
	1290	(% class="wikigeneratedid" %)
44.4	1291	User can change firmware SN50v3-LB to:
2.1	1292
	1293	* Change Frequency band/ region.
	1294	* Update with new features.
	1295	* Fix bugs.
	1296
52.2	1297	Firmware and changelog can be downloaded from : [[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]
2.1	1298
44.4	1299	Methods to Update Firmware:
2.1	1300
53.3	1301	* (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/]]
	1302	* 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]].
2.1	1303
	1304	= 6. FAQ =
	1305
17.1	1306	== 6.1 Where can i find source code of SN50v3-LB? ==
2.1	1307
43.52	1308
17.1	1309	* [[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].
	1310	* [[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].
2.1	1311
55.2	1312	== 6.2 How to generate PWM Output in SN50v3-LB? ==
	1313
	1314
55.1	1315	See this document: [[Generate PWM Output on SN50v3>>https://www.dropbox.com/scl/fi/r3trcet2knujg40w0mgyn/Generate-PWM-Output-on-SN50v3.pdf?rlkey=rxsgmrhhrv62iiiwjq9sv10bn&dl=0]].
	1316
	1317
57.1	1318	== 6.3 How to put several sensors to a SN50v3-LB? ==
	1319
57.2	1320
57.1	1321	When we want to put several sensors to A SN50v3-LB, the waterproof at the grand connector will become an issue. User can try to exchange the grand connector to below type.
	1322
	1323	[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
	1324
	1325	[[image:image-20230810121434-1.png\|\|height="242" width="656"]]
	1326
	1327
2.1	1328	= 7. Order Info =
	1329
	1330
10.1	1331	Part Number: (% style="color:blue" %)SN50v3-LB-XX-YY
2.1	1332
	1333	(% style="color:red" %)XX(%%): The default frequency band
11.1	1334
2.1	1335	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	1336	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	1337	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	1338	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	1339	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	1340	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	1341	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	1342	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	1343
10.1	1344	(% style="color:red" %)YY: (%%)Hole Option
2.1	1345
10.1	1346	* (% style="color:red" %)12(%%): With M12 waterproof cable hole
	1347	* (% style="color:red" %)16(%%): With M16 waterproof cable hole
	1348	* (% style="color:red" %)20(%%): With M20 waterproof cable hole
	1349	* (% style="color:red" %)NH(%%): No Hole
	1350
2.1	1351	= 8. Packing Info =
	1352
43.52	1353
2.1	1354	(% style="color:#037691" %)Package Includes:
	1355
10.1	1356	* SN50v3-LB LoRaWAN Generic Node
2.1	1357
	1358	(% style="color:#037691" %)Dimension and weight:
	1359
	1360	* Device Size: cm
	1361	* Device Weight: g
	1362	* Package Size / pcs : cm
	1363	* Weight / pcs : g
	1364
	1365	= 9. Support =
	1366
	1367
	1368	* 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	1369
41.4	1370	* 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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