SN50v3-LB LoRaWAN Sensor Node User Manual

(% 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.

20

21

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.

23

24

25

(% 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.

26

27

28

(% 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.

29

30

31

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.

== 1.2 Features ==

* LoRaWAN 1.0.3 Class A

37

* Ultra-low power consumption

38

* Open-Source hardware/software

39

* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

40

* Support Bluetooth v5.1 and LoRaWAN remote configure

41

* Support wireless OTA update firmware

42

* Uplink on periodically

43

* Downlink to change configure

44

* 8500mAh Battery for long term use

45

46

== 1.3 Specification ==

47

48

(% style="color:#037691" %)**Common DC Characteristics:**

49

50

* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v

51

* Operating Temperature: -40 ~~ 85°C

52

53

(% style="color:#037691" %)**I/O Interface:**

54

55

* Battery output (2.6v ~~ 3.6v depends on battery)

56

* +5v controllable output

57

* 3 x Interrupt or Digital IN/OUT pins

58

* 3 x one-wire interfaces

* 1 x UART Interface

* 1 x I2C Interface

(% style="color:#037691" %)**LoRa Spec:**

63

64

* Frequency Range, Band 1 (HF): 862 ~~ 1020 Mhz

65

* Max +22 dBm constant RF output vs.

66

* RX sensitivity: down to -139 dBm.

67

* Excellent blocking immunity

68

69

(% style="color:#037691" %)**Battery:**

70

71

* Li/SOCI2 un-chargeable battery

72

* Capacity: 8500mAh

73

* Self-Discharge: <1% / Year @ 25°C

74

* Max continuously current: 130mA

75

* Max boost current: 2A, 1 second

76

77

(% style="color:#037691" %)**Power Consumption**

78

79

* Sleep Mode: 5uA @ 3.3v

80

* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm

81

82

== 1.4 Sleep mode and working mode ==

83

84

(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.

85

86

(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.

87

88

89

== 1.5 Button & LEDs ==

90

91

92

[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]

93

94

95

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

96

|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**

97

|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((

98

If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.

99

Meanwhile, BLE module will be active and user can connect via BLE to configure device.

100

)))

101

|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((

102

(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network.

103

(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.

104

Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.

105

)))

106

|(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.

107

108

== 1.6 BLE connection ==

109

110

111

SN50v3-LB supports BLE remote configure.

112

113

114

BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:

115

116

* Press button to send an uplink

117

* Press button to active device.

118

* Device Power on or reset.

119

120

If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.

121

122

123

== 1.7 Pin Definitions ==

124

125

126

[[image:image-20230513102034-2.png]]

== 1.8 Mechanical ==

[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]

133

134

[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]

135

136

[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]

== Hole Option ==

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:

142

143

[[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"]]

144

145

[[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"]]

146

147

148

= 2. Configure SN50v3-LB to connect to LoRaWAN network =

149

150

== 2.1 How it works ==

151

152

153

The SN50v3-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the S31x-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.

154

155

156

== 2.2 Quick guide to connect to LoRaWAN server (OTAA) ==

157

158

159

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.

160

161

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.

162

163

164

(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from SN50v3-LB.

165

166

Each SN50v3-LB is shipped with a sticker with the default device EUI as below:

167

168

[[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"]]

169

170

171

You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:

172

173

174

(% style="color:blue" %)**Register the device**

175

176

[[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"]]

177

178

179

(% style="color:blue" %)**Add APP EUI and DEV EUI**

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/image-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]

182

183

184

(% style="color:blue" %)**Add APP EUI in the application**

185

186

187

[[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"]]

188

189

190

(% style="color:blue" %)**Add APP KEY**

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-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]

193

194

195

(% style="color:blue" %)**Step 2:**(%%) Activate SN50v3-LB

196

197

198

Press the button for 5 seconds to activate the SN50v3-LB.

199

200

(% 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.

201

202

After join success, it will start to upload messages to TTN and you can see the messages in the panel.

203

204

205

== 2.3 Uplink Payload ==

206

207

=== 2.3.1 Device Status, FPORT~=5 ===

208

209

210

Users can use the downlink command(**0x26 01**) to ask SN50v3 to send device configure detail, include device configure status. SN50v3 will uplink a payload via FPort=5 to server.

211

212

The Payload format is as below.

213

214

215

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

216

|(% colspan="6" style="background-color:#d9e2f3; color:#0070c0" %)**Device Status (FPORT=5)**

Example parse in TTNv3

221

222

223

(% style="color:#037691" %)**Sensor Model**(%%): For SN50v3, this value is 0x1C

224

225

(% style="color:#037691" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version

226

227

(% style="color:#037691" %)**Frequency Band**:

*0x01: EU868

*0x02: US915

*0x03: IN865

*0x04: AU915

*0x05: KZ865

*0x06: RU864

*0x07: AS923

*0x08: AS923-1

*0x09: AS923-2

*0x0a: AS923-3

*0x0b: CN470

*0x0c: EU433

*0x0d: KR920

*0x0e: MA869

(% style="color:#037691" %)**Sub-Band**:

259

260

AU915 and US915:value 0x00 ~~ 0x08

261

262

CN470: value 0x0B ~~ 0x0C

263

264

Other Bands: Always 0x00

265

266

267

(% style="color:#037691" %)**Battery Info**:

268

269

Check the battery voltage.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

=== 2.3.2 Working Modes & Sensor Data. Uplink via FPORT~=2 ===

277

278

279

SN50v3 has different working mode for the connections of different type of sensors. This section describes these modes. Use can use the AT Command AT+MOD to set SN50v3 to different working modes.

For example:

**AT+MOD=2 ** ~/~/ will set the SN50v3 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor.

284

285

286

(% style="color:red" %) **Important Notice:**

287

288

1. Some working modes has payload more than 12 bytes, The US915/AU915/AS923 frequency bands' definition has maximum 11 bytes in **DR0**. Server sides will see NULL payload while SN50v3 transmit in DR0 with 12 bytes payload.

289

1. All modes share the same Payload Explanation from HERE.

290

1. By default, the device will send an uplink message every 20 minutes.

291

292

==== 2.3.2.1 MOD~=1 (Default Mode) ====

293

294

In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.

295

296

(% style="width:1110px" %)

297

298

|**Value**|Bat|(% style="width:191px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:78px" %)(((

ADC

(PA4)

)))|(% style="width:216px" %)(((

307

Digital in(PB15) &

308

309

Digital Interrupt(PA8)

310

311

312

)))|(% style="width:308px" %)(((

313

Temperature

314

315

(SHT20 or SHT31 or BH1750 Illumination Sensor)

316

)))|(% style="width:154px" %)(((

Humidity

(SHT20 or SHT31)

)))

[[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"]]

323

324

325

==== 2.3.2.2 MOD~=2 (Distance Mode) ====

326

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

329

(% style="width:1011px" %)

330

331

|**Value**|BAT|(% style="width:196px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:87px" %)(((

ADC

(PA4)

)))|(% style="width:189px" %)(((

340

Digital in(PB15) &

341

342

Digital Interrupt(PA8)

343

)))|(% style="width:208px" %)(((

Distance measure by:

1) LIDAR-Lite V3HP

Or

2) Ultrasonic Sensor

)))|(% style="width:117px" %)Reserved

349

350

[[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"]]

351

352

**Connection of LIDAR-Lite V3HP:**

353

354

[[image:image-20230512173758-5.png||height="563" width="712"]]

355

356

**Connection to Ultrasonic Sensor:**

357

358

Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current.

359

360

[[image:image-20230512173903-6.png||height="596" width="715"]]

361

362

For the connection to TF-Mini or TF-Luna , MOD2 payload is as below:

363

364

(% style="width:1113px" %)

365

366

|**Value**|BAT|(% style="width:183px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:173px" %)(((

371

Digital in(PB15) &

372

373

Digital Interrupt(PA8)

374

)))|(% style="width:84px" %)(((

ADC

(PA4)

)))|(% style="width:323px" %)(((

379

Distance measure by:1)TF-Mini plus LiDAR

380

Or

381

2) TF-Luna LiDAR

382

)))|(% style="width:188px" %)Distance signal strength

383

384

[[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"]]

385

386

**Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):**

387

388

Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.

389

390

[[image:image-20230512180609-7.png||height="555" width="802"]]

391

392

**Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):**

393

394

Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.

395

396

[[image:image-20230513105207-4.png||height="469" width="802"]]

397

398

399

==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ====

400

401

This mode has total 12 bytes. Include 3 x ADC + 1x I2C

402

403

(% style="width:1031px" %)

|=(((

**Size(bytes)**

|**Value**|(% style="width:68px" %)(((

ADC1

(PA4)

)))|(% style="width:75px" %)(((

ADC2

(PA5)

)))|(((

ADC3

(PA8)

)))|(((

Digital Interrupt(PB15)

421

)))|(% style="width:304px" %)(((

422

Temperature

423

424

(SHT20 or SHT31 or BH1750 Illumination Sensor)

425

)))|(% style="width:163px" %)(((

Humidity

(SHT20 or SHT31)

)))|(% style="width:53px" %)Bat

430

431

[[image:image-20230513110214-6.png]]

432

433

434

==== 2.3.2.4 MOD~=4 (3 x DS18B20) ====

435

436

437

This mode has total 11 bytes. As shown below:

438

439

(% style="width:1017px" %)

440

441

|**Value**|BAT|(% style="width:186px" %)(((

442

Temperature1(DS18B20)

443

(PC13)

444

)))|(% style="width:82px" %)(((

ADC

(PA4)

)))|(% style="width:210px" %)(((

449

Digital in(PB15) &

450

451

Digital Interrupt(PA8)

452

)))|(% style="width:191px" %)Temperature2(DS18B20)

453

(PB9)|(% style="width:183px" %)Temperature3(DS18B20)

454

(PB8)

455

456

[[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"]]

457

458

[[image:image-20230513134006-1.png||height="559" width="736"]]

459

460

461

==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ====

462

463

[[image:image-20230512164658-2.png||height="532" width="729"]]

464

465

Each HX711 need to be calibrated before used. User need to do below two steps:

466

467

1. Zero calibration. Don't put anything on load cell and run **AT+WEIGRE** to calibrate to Zero gram.

468

1. Adjust calibration factor (default value 400): Put a known weight thing on load cell and run **AT+WEIGAP** to adjust the Calibration Factor.

469

1. (((

470

Weight has 4 bytes, the unit is g.

)))

For example:

**AT+GETSENSORVALUE =0**

476

477

Response: Weight is 401 g

478

479

Check the response of this command and adjust the value to match the real value for thing.

480

481

(% style="width:767px" %)

|=(((

**Size(bytes)**

|**Value**|BAT|(% style="width:193px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:85px" %)(((

ADC

(PA4)

)))|(% style="width:186px" %)(((

496

Digital in(PB15) &

497

498

Digital Interrupt(PA8)

499

)))|(% style="width:100px" %)Weight

500

501

[[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"]]

502

503

504

==== 2.3.2.6 MOD~=6 (Counting Mode) ====

505

506

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.

507

508

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.

509

510

[[image:image-20230512181814-9.png||height="543" width="697"]]

511

512

**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.

513

514

(% style="width:961px" %)

515

516

|**Value**|BAT|(% style="width:256px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:108px" %)(((

ADC

(PA4)

)))|(% style="width:126px" %)(((

Digital in

(PB15)

)))|(% style="width:145px" %)(((

Count

(PA8)

)))

[[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"]]

535

536

537

==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ====

538

539

(% style="width:1108px" %)

|=(((

**Size(bytes)**

|**Value**|BAT|(% style="width:188px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:83px" %)(((

ADC

(PA5)

)))|(% style="width:184px" %)(((

552

Digital Interrupt1(PA8)

553

)))|(% style="width:186px" %)Digital Interrupt2(PA4)|(% style="width:197px" %)Digital Interrupt3(PB15)|(% style="width:100px" %)Reserved

554

555

[[image:image-20230513111203-7.png||height="324" width="975"]]

556

557

==== 2.3.2.8 MOD~=8 （3ADC+1DS18B20） ====

558

559

(% style="width:922px" %)

|=(((

**Size(bytes)**

|**Value**|BAT|(% style="width:207px" %)(((

Temperature(DS18B20)

(PC13)

)))|(% style="width:94px" %)(((

ADC1

(PA4)

)))|(% style="width:198px" %)(((

572

Digital Interrupt(PB15)

573

)))|(% style="width:84px" %)(((

ADC2

(PA5)

)))|(% style="width:82px" %)(((

ADC3

(PA8)

)))

[[image:image-20230513111231-8.png||height="335" width="900"]]

584

585

586

==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ====

587

588

(% style="width:1010px" %)

589

|=(((

590

**Size(bytes)**

591

)))|=**2**|=**2**|=**2**|=**1**|=(% style="width: 193px;" %)**2**|=(% style="width: 78px;" %)4|=(% style="width: 78px;" %)4

592

|**Value**|BAT|(((

593

Temperature1(DS18B20)

(PC13)

)))|(((

Temperature2(DS18B20)

(PB9)

)))|(((

Digital Interrupt

(PB15)

)))|(% style="width:193px" %)(((

605

Temperature3(DS18B20)

606

607

(PB8)

608

)))|(% style="width:78px" %)(((

Count1

(PA8)

)))|(% style="width:78px" %)(((

Count2

(PA4)

)))

[[image:image-20230513111255-9.png||height="341" width="899"]]

619

620

**The newly added AT command is issued correspondingly:**

621

622

**~ AT+INTMOD1** ** PA8** pin： Corresponding downlink: **06 00 00 xx**

623

624

**~ AT+INTMOD2** **PA4** pin： Corresponding downlink:** 06 00 01 xx**

625

626

**~ AT+INTMOD3** **PB15** pin： Corresponding downlink: ** 06 00 02 xx**

**AT+SETCNT=aa,bb**

When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb

631

632

When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb

=== 2.3.3 Decode payload ===

637

638

While using TTN V3 network, you can add the payload format to decode the payload.

639

640

[[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"]]

641

642

The payload decoder function for TTN V3 are here:

643

644

SN50v3 TTN V3 Payload Decoder: [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]

645

646

647

==== 2.3.3.1 Battery Info ====

648

649

Check the battery voltage for SN50v3.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

==== 2.3.3.2 Temperature (DS18B20) ====

657

658

If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload.

659

660

More DS18B20 can check the [[3 DS18B20 mode>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#2.3.4MOD3D4283xDS18B2029]]

**Connection:**

[[image:image-20230512180718-8.png||height="538" width="647"]]

**Example**:

If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree

669

670

If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.

671

672

（FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）

673

674

675

==== 2.3.3.3 Digital Input ====

676

677

The digital input for pin PB15,

678

679

* When PB15 is high, the bit 1 of payload byte 6 is 1.

680

* When PB15 is low, the bit 1 of payload byte 6 is 0.

681

682

(% class="wikigeneratedid" id="H2.3.3.4A0AnalogueDigitalConverter28ADC29" %)

683

(((

684

When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.

685

686

**Note:**The maximum voltage input supports 3.6V.

)))

==== 2.3.3.4 Analogue Digital Converter (ADC) ====

692

693

The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.

694

695

When the measured output voltage of the sensor is not within the range of 0V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series.

696

697

[[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"]]

698

699

**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.

700

701

702

==== 2.3.3.5 Digital Interrupt ====

703

704

Digital Interrupt refers to pin PA8, and there are different trigger methods. When there is a trigger, the SN50v3 will send a packet to the server.

705

706

**~ Interrupt connection method:**

707

708

[[image:image-20230513105351-5.png||height="147" width="485"]]

709

710

**Example to use with door sensor :**

711

712

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.

713

714

[[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"]]

715

716

When the two pieces are close to each other, the 2 wire output will be short or open (depending on the type), while if the two pieces are away from each other, the 2 wire output will be the opposite status. So we can use SN50_v3 interrupt interface to detect the status for the door or window.

717

718

**~ Below is the installation example:**

719

720

Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:

721

722

* (((

723

One pin to SN50_v3's PA8 pin

724

)))

725

* (((

726

The other pin to SN50_v3's VDD pin

727

)))

728

729

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.

730

731

Door sensors have two types: ** NC (Normal close)** and **NO (normal open)**. The connection for both type sensors are the same. But the decoding for payload are reverse, user need to modify this in the IoT Server decoder.

732

733

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.

734

735

[[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"]]

736

737

The above photos shows the two parts of the magnetic switch fitted to a door.

738

739

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.

The command is:

**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]]**. **)

744

745

Below shows some screen captures in TTN V3:

746

747

[[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"]]

748

749

In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:

750

751

door= (bytes[6] & 0x80)? "CLOSE":"OPEN";

752

753

754

==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====

755

756

The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.

757

758

We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor.

759

760

Notice: Different I2C sensors have different I2C commands set and initiate process, if user want to use other I2C sensors, User need to re-write the source code to support those sensors. SHT20/ SHT31 code in SN50_v3 will be a good reference.

761

762

Below is the connection to SHT20/ SHT31. The connection is as below:

763

764

765

[[image:image-20230513103633-3.png||height="448" width="716"]]

766

767

The device will be able to get the I2C sensor data now and upload to IoT Server.

768

769

[[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"]]

770

771

Convert the read byte to decimal and divide it by ten.

**Example:**

Temperature: Read:0116(H) = 278(D) Value: 278 /10=27.8℃;

776

777

Humidity: Read:0248(H)=584(D) Value: 584 / 10=58.4, So 58.4%

778

779

If you want to use other I2C device, please refer the SHT20 part source code as reference.

780

781

782

==== 2.3.3.7 Distance Reading ====

783

784

Refer [[Ultrasonic Sensor section>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#H2.4.8UltrasonicSensor]].

785

786

787

==== 2.3.3.8 Ultrasonic Sensor ====

788

789

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]]

790

791

The SN50_v3 detects the pulse width of the sensor and converts it to mm output. The accuracy will be within 1 centimeter. The usable range (the distance between the ultrasonic probe and the measured object) is between 24cm and 600cm.

792

793

The working principle of this sensor is similar to the **HC-SR04** ultrasonic sensor.

794

795

The picture below shows the connection:

796

797

[[image:image-20230512173903-6.png||height="596" width="715"]]

798

799

Connect to the SN50_v3 and run **AT+MOD=2** to switch to ultrasonic mode (ULT).

800

801

The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.

**Example:**

Distance: Read: 0C2D(Hex) = 3117(D) Value: 3117 mm=311.7 cm

==== 2.3.3.9 Battery Output - BAT pin ====

810

811

The BAT pin of SN50v3 is connected to the Battery directly. If users want to use BAT pin to power an external sensor. User need to make sure the external sensor is of low power consumption. Because the BAT pin is always open. If the external sensor is of high power consumption. the battery of SN50v3-LB will run out very soon.

812

813

814

==== 2.3.3.10 +5V Output ====

815

816

SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling.

817

818

The 5V output time can be controlled by AT Command.

**AT+5VT=1000**

Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.

823

824

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.

==== 2.3.3.11 BH1750 Illumination Sensor ====

829

830

MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.

831

832

[[image:image-20230512172447-4.png||height="416" width="712"]]

833

834

[[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"]]

835

836

837

==== 2.3.3.12 Working MOD ====

838

839

The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).

840

841

User can use the 3^^rd^^ ~~ 7^^th^^ bit of this byte to see the working mod:

842

843

Case 7^^th^^ Byte >> 2 & 0x1f:

* 0: MOD1

* 1: MOD2

* 2: MOD3

* 3: MOD4

* 4: MOD5

* 5: MOD6

* 6: MOD7

* 7: MOD8

* 8: MOD9

(% class="wikigeneratedid" %)

856

== ==

857

858

== 2.4 Payload Decoder file ==

859

860

861

In TTN, use can add a custom payload so it shows friendly reading

862

863

In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from:

864

865

[[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]]

== 2.5 Frequency Plans ==

870

871

872

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.

873

874

[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]

875

876

877

= 3. Configure SN50v3-LB =

878

879

== 3.1 Configure Methods ==

880

881

882

SN50v3-LB supports below configure method:

883

884

* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].

885

* 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]].

886

* LoRaWAN Downlink. Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.

887

888

== 3.2 General Commands ==

889

890

891

These commands are to configure:

892

893

* General system settings like: uplink interval.

894

* LoRaWAN protocol & radio related command.

895

896

They are same for all Dragino Devices which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki:

897

898

[[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/]]

899

900

901

== 3.3 Commands special design for SN50v3-LB ==

902

903

904

These commands only valid for S31x-LB, as below:

905

906

907

=== 3.3.1 Set Transmit Interval Time ===

908

909

Feature: Change LoRaWAN End Node Transmit Interval.

910

911

(% style="color:blue" %)**AT Command: AT+TDC**

912

913

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

914

|=(% style="width: 156px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3" %)**Function**|=(% style="background-color:#D9E2F3" %)**Response**

915

|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((

916

30000

917

OK

918

the interval is 30000ms = 30s

919

)))

920

|(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((

921

OK

922

Set transmit interval to 60000ms = 60 seconds

923

)))

924

925

(% style="color:blue" %)**Downlink Command: 0x01**

926

927

Format: Command Code (0x01) followed by 3 bytes time value.

928

929

If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.

930

931

* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

932

* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

933

934

(% class="wikigeneratedid" %)

935

=== ===

936

937

=== 3.3.2 Get Device Status ===

938

939

Send a LoRaWAN downlink to ask the device to send its status.

940

941

(% style="color:blue" %)**Downlink Payload: **(%%)0x26 01

942

943

Sensor will upload Device Status via FPORT=5. See payload section for detail.

944

945

946

=== 3.3.3 Set Interrupt Mode ===

947

948

Feature, Set Interrupt mode for GPIO_EXIT.

949

950

(% style="color:blue" %)**AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3**

951

952

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

953

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

954

|(% style="width:154px" %)AT+INTMOD1=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((

955

0

956

OK

957

the mode is 0 =Disable Interrupt

958

)))

959

|(% style="width:154px" %)AT+INTMOD1=2|(% style="width:196px" %)(((

960

Set Transmit Interval

961

0. (Disable Interrupt),

962

~1. (Trigger by rising and falling edge)

963

2. (Trigger by falling edge)

964

3. (Trigger by rising edge)

965

)))|(% style="width:157px" %)OK

966

|(% style="width:154px" %)AT+INTMOD2=3|(% style="width:196px" %)(((

967

Set Transmit Interval

968

969

trigger by rising edge.

970

)))|(% style="width:157px" %)OK

971

|(% style="width:154px" %)AT+INTMOD3=0|(% style="width:196px" %)Disable Interrupt|(% style="width:157px" %)OK

972

973

(% style="color:blue" %)**Downlink Command: 0x06**

974

975

Format: Command Code (0x06) followed by 3 bytes.

976

977

This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.

978

979

* Example 1: Downlink Payload: 06000000 **~-~-->** AT+INTMOD1=0

980

* Example 2: Downlink Payload: 06000003 **~-~-->** AT+INTMOD1=3

981

* Example 3: Downlink Payload: 06000102 **~-~-->** AT+INTMOD2=2

982

* Example 4: Downlink Payload: 06000201 **~-~-->** AT+INTMOD3=1

983

984

(% class="wikigeneratedid" %)

985

=== ===

986

987

=== 3.3.4 Set Power Output Duration ===

988

989

Control the output duration 5V . Before each sampling, device will

990

991

~1. first enable the power output to external sensor,

992

993

2. keep it on as per duration, read sensor value and construct uplink payload

994

995

3. final, close the power output.

996

997

(% style="color:blue" %)**AT Command: AT+5VT**

998

999

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

1000

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

1001

|(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)(((

500(default)

OK

)))

|(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)(((

1007

Close after a delay of 1000 milliseconds.

1008

)))|(% style="width:157px" %)OK

1009

1010

(% style="color:blue" %)**Downlink Command: 0x07**

1011

1012

Format: Command Code (0x07) followed by 2 bytes.

1013

1014

The first and second bytes are the time to turn on.

1015

1016

* Example 1: Downlink Payload: 070000 **~-~-->** AT+5VT=0

1017

* Example 2: Downlink Payload: 0701F4 **~-~-->** AT+5VT=500

1018

1019

(% class="wikigeneratedid" %)

1020

=== ===

1021

1022

=== 3.3.5 Set Weighing parameters ===

1023

1024

Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.

1025

1026

(% style="color:blue" %)**AT Command: AT+WEIGRE,AT+WEIGAP**

1027

1028

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

1029

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

1030

|(% style="width:154px" %)AT+WEIGRE|(% style="width:196px" %)Weight is initialized to 0.|(% style="width:157px" %)OK

1031

|(% style="width:154px" %)AT+WEIGAP=？|(% style="width:196px" %)400.0|(% style="width:157px" %)OK(default)

1032

|(% style="width:154px" %)AT+WEIGAP=400.3|(% style="width:196px" %)Set the factor to 400.3.|(% style="width:157px" %)OK

1033

1034

(% style="color:blue" %)**Downlink Command: 0x08**

1035

1036

Format: Command Code (0x08) followed by 2 bytes or 4 bytes.

1037

1038

Use AT+WEIGRE when the first byte is 1, only 1 byte. When it is 2, use AT+WEIGAP, there are 3 bytes.

1039

1040

The second and third bytes are multiplied by 10 times to be the AT+WEIGAP value.

1041

1042

* Example 1: Downlink Payload: 0801 **~-~-->** AT+WEIGRE

1043

* Example 2: Downlink Payload: 08020FA3 **~-~-->** AT+WEIGAP=400.3

1044

* Example 3: Downlink Payload: 08020FA0 **~-~-->** AT+WEIGAP=400.0

1045

1046

(% class="wikigeneratedid" %)

1047

=== ===

1048

1049

=== 3.3.6 Set Digital pulse count value ===

1050

1051

Feature: Set the pulse count value.

1052

1053

Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.

1054

1055

(% style="color:blue" %)**AT Command: AT+SETCNT**

1056

1057

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

1058

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

1059

|(% style="width:154px" %)AT+SETCNT=1,100|(% style="width:196px" %)Initialize the count value 1 to 100.|(% style="width:157px" %)OK

1060

|(% style="width:154px" %)AT+SETCNT=2,0|(% style="width:196px" %)Initialize the count value 2 to 0.|(% style="width:157px" %)OK

1061

1062

(% style="color:blue" %)**Downlink Command: 0x09**

1063

1064

Format: Command Code (0x09) followed by 5 bytes.

1065

1066

The first byte is to select which count value to initialize, and the next four bytes are the count value to be initialized.

1067

1068

* Example 1: Downlink Payload: 090100000000 **~-~-->** AT+SETCNT=1,0

1069

* Example 2: Downlink Payload: 0902000003E8 **~-~-->** AT+SETCNT=2,1000

1070

1071

(% class="wikigeneratedid" %)

1072

=== ===

1073

1074

=== 3.3.7 Set Workmode ===

1075

1076

Feature: Switch working mode.

1077

1078

(% style="color:blue" %)**AT Command: AT+MOD**

1079

1080

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

1081

|=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response**

1082

|(% style="width:154px" %)AT+MOD=?|(% style="width:196px" %)Get the current working mode.|(% style="width:157px" %)(((

1083

OK

1084

)))

1085

|(% style="width:154px" %)AT+MOD=4|(% style="width:196px" %)Set the working mode to 3DS18B20s.|(% style="width:157px" %)(((

1086

OK

1087

1088

Attention:Take effect after ATZ

1089

)))

1090

1091

(% style="color:blue" %)**Downlink Command: 0x0A**

1092

1093

Format: Command Code (0x0A) followed by 1 bytes.

1094

1095

* Example 1: Downlink Payload: 0A01 **~-~-->** AT+MOD=1

1096

* Example 2: Downlink Payload: 0A04 **~-~-->** AT+MOD=4

1097

1098

(% class="wikigeneratedid" %)

1099

= =

1100

1101

= 4. Battery & Power Consumption =

1102

1103

1104

SN50v3-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.

1105

1106

[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .

1107

1108

1109

= 5. OTA Firmware update =

1110

1111

1112

(% class="wikigeneratedid" %)

1113

User can change firmware SN50v3-LB to:

1114

1115

* Change Frequency band/ region.

1116

* Update with new features.

1117

* Fix bugs.

1118

1119

Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]**

1120

1121

1122

Methods to Update Firmware:

1123

1124

* (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/]]

1125

* 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]]**.

= 6. FAQ =

== 6.1 Where can i find source code of SN50v3-LB? ==

1130

1131

* **[[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].**

1132

* **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**

= 7. Order Info =

Part Number: (% style="color:blue" %)**SN50v3-LB-XX-YY**

1138

1139

(% style="color:red" %)**XX**(%%): The default frequency band

1140

1141

* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band

1142

* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band

1143

* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band

1144

* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band

1145

* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band

1146

* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band

1147

* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band

1148

* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band

1149

1150

(% style="color:red" %)**YY: ** (%%)Hole Option

1151

1152

* (% style="color:red" %)**12**(%%): With M12 waterproof cable hole

1153

* (% style="color:red" %)**16**(%%): With M16 waterproof cable hole

1154

* (% style="color:red" %)**20**(%%): With M20 waterproof cable hole

1155

* (% style="color:red" %)**NH**(%%): No Hole

= 8. Packing Info =

(% style="color:#037691" %)**Package Includes**:

1160

1161

* SN50v3-LB LoRaWAN Generic Node

1162

1163

(% style="color:#037691" %)**Dimension and weight**:

* Device Size: cm

* Device Weight: g

* Package Size / pcs : cm

* Weight / pcs : g

= 9. Support =

* 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.

1174

* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.cc>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.cc]]

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

Applications

Navigation