General Manual for -CB , -CS models

(% class="wikigeneratedid" id="HTableofContents:" %)

5

**Table of Contents:**

= 1. The use of this guideline =

10

11

12

This configure instruction is for Dragino NB-IoT models with -CB or -CS suffix, for example DDS75-CB. These models use the same NB-IoT Module **[[BG95-M2>>https://www.dropbox.com/sh/3ilyaswz4odgaru/AADR86cAgL9UGlmLuEH-UZgla?st=x1ry6v5j&dl=0]]** and has the same software structure. The have the same configure instruction to different IoT servers. Use can follow the instruction here to see how to configure to connect to those servers.

13

14

15

= 2. Attach Network =

16

17

== 2.1 General Configure to attach network ==

18

19

20

To attache end nodes to NB-IoT or LTE-M Network, You need to:

21

22

1. Get a NB-IoT or LTE-M SIM card from Service Provider. (Not the same as the SIM card we use in mobile phone)

23

1. Power Off End Node ( See below for the power off/on position)

24

1. Insert the SIM card to Sensor. ( See below for direction)

25

1. Power On End Node

26

1. [[Configure APN>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20configure%20APN%20in%20the%20node/]] in the sensor (AT+APN=<APN>), example AT+APN=iot.1nce.net

27

28

[[image:image-20240602220856-1.png]]

29

30

31

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20230808205045-1.png?width=438&height=293&rev=1.1||alt="image-20230808205045-1.png"]]

32

33

34

After doing above, the end nodes should be able to attach to NB-IoT network .

35

36

The -CB and -CS models support (% style="color:blue" %)**LTE Cat NB2 and LTE-M (CAT-M1)**(%%), with below frequency band: multiple frequency bands of

37

38

~-~-(% style="color:blue" %)** CAT-NB2: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B28/B66/B71/B85 **(%%).

39

40

~-~-(% style="color:blue" %)** CAT-M1: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85 **(%%).

41

42

Make sure you use a the NB-IoT or LTE-M SIM card.

43

44

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:1134px" %)

45

|(% style="background-color:#4f81bd; color:white; width:117px" %)**SIM Provider**|(% style="background-color:#4f81bd; color:white; width:151px" %)**AT+APN=**|(% style="background-color:#4f81bd; color:white; width:406px" %)**NB-IoT Coverage**|(% style="background-color:#4f81bd; color:white; width:351px" %)**LTE-M Coverage**|(% style="background-color:#4f81bd; color:white; width:120px" %)**Comments**

46

|(% style="width:117px" %)**[[1NCE>>https://1nce.com]]**|(% style="width:151px" %)iot.1nce.net|(% style="width:406px" %)(((

47

**[[Coverage Reference Link>>https://1nce.com/en-ap/1nce-connect]]**

48

49

Austria, Belgium, Bulgaria, China, Croatia, Czech Republic, Denmark, Estonia, Finland, Germany, Great Britain, Greece, Hungary, Ireland,Italy, Latvia, Malta, Netherlands, Norway, Portugal, Puerto Rico, Russia, Slovak,Republic, Slovenia, Spain, Sweden, Switzerland, Taiwan, USA, US Virgin Islands

50

)))|(% style="width:351px" %)(((

51

Argentina, Austria, Australia, Belgium, Canada, Denmark,Estonia, Finland, France, Germany, Great Britain, Hungary, Ireland, Japan,Jersey, Korea, Repiblic of, Latvia, Luxembourg, Mexico, Netherlands, New Zealand, Norway, Poland, Puerto Rico, Romania, Spain, Sweden, Switzerland,Taiwan, USA, US Virgin Islands.

52

)))|(% style="width:120px" %)UK: Band20

== 2.2 Speed Up Network Attach time ==

57

58

59

**BG95-M2** supports multi bands (% style="color:blue" %)**in NB-IoT and LTE-M. **(%%) It will search one by one and try to attach, this will take a lot of time and even cause attach fail and show **Signal Strenght:99**.

60

61

**Note:**Before using the NB module command, users need to power on the NB module. Run the AT+QSW command to turn on and off the NB module.Remember to shut down after using the NB module command, otherwise it will consume power.

62

63

Attache to 1NCE card for Australia use:

64

65

* AT+COPS=1,2,"50501",8

66

* AT+QCFG="band",0,0x8000000,0x8000000,1

67

68

After connection is successful, user can use (% style="color:#037691" %)**AT+QENG="servingcell"**(%%) to check which band is actually in used.

69

70

AT+QENG="servingcell"

71

+QENG: "servingcell","NOCONN","eMTC","FD

72

D",505,01,90D2C0B,258,9410,28,5,5,901A,-112,-17,-80,10,27

73

74

75

See bands used for different provider:** [[NB-IoT Deployment , Bands, Operator list>>http://wiki.dragino.com/xwiki/bin/view/Main/NB-IoT%20Deployment%20%2C%20Bands%2C%20Operator%20list/]]**

76

77

=== **1. Configure Frequency Band** ===

78

79

AT+QCFG="band"[,<GSM_bandval>,<eMTC_bandval>,<NB-IoT_bandval>[,<effect>]]

<GSM_bandval>:

0 No change

0x1 EGSM900

0x2 DCS1800

0x4 GSM850

0x8 PCS1900

0xF All of the supported bands above

<eMTC_bandval>:

0 No change

0x1 LTE B1

0x2 LTE B2

0x4 LTE B3

0x8 LTE B4

0x10 LTE B5

0x80 LTE B8

0x800 LTE B12

0x1000 LTE B13

0x20000 LTE B18

0x40000 LTE B19

0x80000 LTE B20

0x1000000 LTE B25

0x2000000 LTE B26

0x4000000 LTE B27

0x8000000 LTE B28

0x40000000 LTE B31

0x20000000000000000 LTE B66

110

0x800000000000000000 LTE B72

111

0x1000000000000000000 LTE B73

112

0x1000000000000000000000 LTE B85

<NB-IoT_bandval>:

0 No change

0x1 LTE B1

0x2 LTE B2

0x4 LTE B3

0x8 LTE B4

0x10 LTE B5

0x80 LTE B8

0x800 LTE B12

0x1000 LTE B13

0x20000 LTE B18

0x40000 LTE B19

0x80000 LTE B20

0x1000000 LTE B25

0x8000000 LTE B28

0x40000000 LTE B31

0x20000000000000000 LTE B66

132

133

0x400000000000000000 LTE B71

134

0x800000000000000000 LTE B72

135

0x1000000000000000000 LTE B73

136

0x1000000000000000000000 LTE B85

137

138

For example, setting the LTE-M network frequency band to 3.

139

140

AT+QCFG="band",0xF,0x4,0,1

141

142

When searching for all bands, the value of this command is set to:

143

144

AT+QCFG="band",0xF,0x100002000000000f0e189f,0x10004200000000090e189f,1

145

146

147

=== **2. Configure search network sequence** ===

148

149

AT+QCFG="nwscanseq",<scanseq>,1

<scanseq>:

00 Automatic (eMTC → NB-IoT → GSM)

01 GSM

02 eMTC

03 NB-IoT

AT+QCFG="nwscanseq",02,1 ~/~/Priority search for eMTC

159

160

161

=== **3. Configure Network Category to be Searched for under LTE RAT** ===

162

163

AT+QCFG="iotopmode",mode,1

0 eMTC

1 NB-IoT

2 eMTC and NB-IoT

=== **4. AT command to set frequency band and network category** ===

171

172

AT+QBAND=0x100002000000000f0e189f,0x10004200000000090e189f ~/~/<eMTC_bandval>,<NB-IoT_bandval>

173

174

AT+IOTMOD=0 ~/~/ 0 eMTC 1 NB-IoT 2 eMTC and NB-IoT

**Example :**

Taking the use of 1nce cards in **the United States** as an example.

179

180

AT+APN=iot.1nce.net ~/~/set APN

181

182

AT+QBAND=0x100180A,0 ~/~/ eMTC ：Set frequency band B2,B4,B12,B13,B25 NB-IoT：No change

183

184

AT+IOTMOD=0 ~/~/ Set eMTC Network

185

186

**Setting the above commands in the United States will greatly reduce the network search time of the NB module.**

187

188

189

= 3. Configure to connect to different servers =

190

191

== 3.1 General UDP Connection ==

192

193

194

The NB-IoT Sensor can send packet to server use UDP protocol.

195

196

197

=== 3.1.1 Simulate UDP Connection by PC tool ===

198

199

200

We can use PC tool to simulate UDP connection to make sure server works ok.

201

202

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20230802112413-1.png?width=1024&height=468&rev=1.1||alt="image-20230802112413-1.png"]]

203

204

205

=== 3.1.2 Configure NB-IoT Sensor ===

206

207

==== 3.1.2.1 AT Commands ====

208

209

210

(% style="color:blue" %)**AT Commands:**

211

212

* (% style="color:#037691" %)**AT+PRO=2,0** (%%) ~/~/ Set to use UDP protocol to uplink ,Payload Type select Hex payload

213

214

* (% style="color:#037691" %)**AT+SERVADDR=8.217.91.207,1999** (%%) ~/~/ Set UDP server address and port

215

216

[[image:image-20240819102802-1.png]]

217

218

219

==== 3.1.2.2 Uplink Example ====

220

221

222

[[image:image-20240819105418-8.png||height="611" width="1287"]]

223

224

225

== 3.2 General COAP Connection ==

226

227

228

The NB-IoT Sensor can send packet to server use COAP protocol.

229

230

Below are the commands.

231

232

(% style="color:blue" %)**AT Commands:**

233

234

* (% style="color:#037691" %)**AT+PRO=1,0** (%%) ~/~/ Set to use COAP protocol to uplink, Payload Type select Hex payload.

235

236

* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5683** (%%) ~/~/ Set COAP server address and port

237

238

* (% style="color:#037691" %)**AT+URI1=11,"i"** (%%) ~/~/ Configure CoAP Message Options

239

* (% style="color:#037691" %)**AT+URI2=11,"aaa05e26-4d6d-f01b-660e-1d8de4a3bfe1"** (%%) ~/~/ Configure CoAP Message Options

240

241

[[image:image-20240819103212-2.png]]

242

243

244

=== 3.2.1 Uplink Example ===

245

246

247

[[image:image-20240819103909-4.png||height="453" width="955"]]

248

249

250

== 3.2 General MQTT Connection ==

251

252

253

The NB-IoT Sensor can send packet to server use MQTT protocol.

254

255

Below are the commands.

256

257

(% style="color:blue" %)**AT Commands:**

258

259

* (% style="color:#037691" %)**AT+PRO=3,0** (%%) ~/~/ Set to use MQTT protocol to uplink, Payload Type select Hex payload.

260

261

* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,1883** (%%) ~/~/ Set MQTT server address and port

262

263

* (% style="color:#037691" %)**AT+CLIENT=CLIENT** (%%) ~/~/ Set up the CLIENT of MQTT

264

265

* (% style="color:#037691" %)**AT+UNAME=UNAME** (%%) ~/~/ Set the username of MQTT

266

267

* (% style="color:#037691" %)**AT+PWD=PWD** (%%) ~/~/ Set the password of MQTT

268

269

* (% style="color:#037691" %)**AT+PUBTOPIC=NSE01_PUB** (%%) ~/~/ Set the sending topic of MQTT

270

271

* (% style="color:#037691" %)**AT+SUBTOPIC=NSE01_SUB** (%%) ~/~/ Set the subscription topic of MQTT

272

273

[[image:image-20240819105003-7.png||height="613" width="458"]]

274

275

276

[[image:image-20240819104942-6.png||height="702" width="974"]]

277

278

(% style="color:red" %)**Notice: MQTT protocol has a much higher power consumption compare with UDP/CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.**

279

280

281

== 3.3 [[ThingSpeak>>url:https://thingspeak.com/]] (via MQTT) ==

282

283

=== 3.3.1 Get MQTT Credentials ===

284

285

286

[[ThingSpeak>>url:https://thingspeak.com/]] connection uses MQTT Connection. So we need to get MQTT Credentials first. You need to point MQTT Devices to ThingSpeak Channel as well.

287

288

[[image:image-20240819173602-1.png||height="401" width="743"]]

289

290

[[image:image-20240819173706-3.png||height="595" width="597"]]

291

292

293

=== 3.3.2 Simulate with MQTT.fx ===

294

295

==== 3.3.2.1 Establish MQTT Connection ====

296

297

298

After we got MQTT Credentials, we can first simulate with PC tool MQTT.fx tool to see if the Credentials and settings are fine.

299

300

[[image:image-20240819173826-4.png||height="534" width="734"]]

301

302

* (% style="color:#037691" %)**Broker Address:**(%%) mqtt3.thingspeak.com

303

304

* (% style="color:#037691" %)**Broker Port:**(%%) 1883

305

306

* (% style="color:#037691" %)**Client ID:**(%%) <Your ThingSpeak MQTT ClientID>

307

308

* (% style="color:#037691" %)**User Name:**(%%) <Your ThingSpeak MQTT User Name>

309

310

* (% style="color:#037691" %)**Password:**(%%) <Your ThingSpeak MQTT Password>

311

312

==== 3.3.2.2 Publish Data to ThingSpeak Channel ====

313

314

315

[[image:image-20240819174033-5.png]]

316

317

[[image:image-20240819174209-6.png]]

318

319

(% style="color:blue" %)**In MQTT.fx, we can publish below info:**

320

321

* (% style="color:#037691" %)**Topic:**(%%) channels/YOUR_CHANNEL_ID/publish

322

323

* (% style="color:#037691" %)**Payload:**(%%) field1=63&field2=67&status=MQTTPUBLISH

324

325

Where 63 and 67 are the value to be published to field1 & field2.

326

327

(% style="color:blue" %)**Result: **

328

329

[[image:image-20240819174314-7.png||height="469" width="785"]]

330

331

332

=== 3.3.3 Configure NB-IoT Sensor for connection ===

333

334

==== 3.3.3.1 AT Commands: ====

335

336

337

In the NB-IoT, we can run below commands so to publish the channels like MQTT.fx

338

339

* (% style="color:blue" %)**AT+PRO=3,1** (%%) ~/~/ Set to use ThingSpeak Server and Related Payload

340

341

* (% style="color:blue" %)**AT+CLIENT=<Your ThingSpeak MQTT ClientID>**

342

343

* (% style="color:blue" %)**AT+UNAME=<Your ThingSpeak MQTT User Name>**

344

345

* (% style="color:blue" %)**AT+PWD=<Your ThingSpeak MQTT Password>**

346

347

* (% style="color:blue" %)**AT+PUBTOPIC=<YOUR_CHANNEL_ID>**

348

349

* (% style="color:blue" %)**AT+SUBTOPIC=<YOUR_CHANNEL_ID>**

350

351

==== 3.3.3.2 Uplink Examples ====

352

353

354

[[image:image-20240819174540-8.png]]

For SE01-NB

For DDS20-NB

For DDS45-NB

For DDS75-NB

For NMDS120-NB

For SPH01-NB

For NLM01-NB

For NMDS200-NB

For CPN01-NB

For DS03A-NB

For SN50V3-NB

==== 3.3.3.3 Map fields to sensor value ====

380

381

382

When NB-IoT sensor upload to ThingSpeak. The payload already specify which fileds related to which sensor value. Use need to create fileds in Channels Settings. with name so to see the value correctly.

383

384

[[image:image-20240819174610-9.png]]

385

386

[[image:image-20240819174618-10.png]]

387

388

Below is the NB-IoT Product Table show the mapping.

389

390

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:1353.82px" %)

391

|(% style="background-color:#4f81bd; width:143px" %) |(% style="background-color:#4f81bd; color:white; width:103px" %)Field1|(% style="background-color:#4f81bd; color:white; width:102px" %)Field2|(% style="background-color:#4f81bd; color:white; width:157px" %)Field3|(% style="background-color:#4f81bd; color:white; width:139px" %)Field4|(% style="background-color:#4f81bd; color:white; width:141px" %)Field5|(% style="background-color:#4f81bd; color:white; width:142px" %)Field6|(% style="background-color:#4f81bd; color:white; width:151px" %)Field7|(% style="background-color:#4f81bd; color:white; width:137px" %)Field8|(% style="background-color:#4f81bd; color:white; width:69px" %)Field9|(% style="background-color:#4f81bd; color:white; width:65px" %)Field10

|(% colspan="1" rowspan="1" style="background-color:#4f81bd; color:white; width:143px" %)DS03A-NB|(% colspan="1" rowspan="1" style="width:103px" %)level|(% colspan="1" rowspan="1" style="width:102px" %)alarm|(% colspan="1" rowspan="1" style="width:157px" %)pb14door open num|(% colspan="1" rowspan="1" style="width:139px" %)pb14 last open time|(% colspan="1" rowspan="1" style="width:141px" %)pb15 level status|(% colspan="1" rowspan="1" style="width:142px" %)pb15 alarm status|(% colspan="1" rowspan="1" style="width:151px" %)pb15 door open num|(% colspan="1" rowspan="1" style="width:137px" %)pb15 last open time|(% colspan="1" rowspan="1" style="width:69px" %)Battery|(% colspan="1" rowspan="1" style="width:65px" %)RSSI

403

|(% colspan="1" rowspan="1" style="background-color:#4f81bd; color:white; width:143px" %)SN50V3-NB mod1|(% colspan="1" rowspan="1" style="width:103px" %)mod|(% colspan="1" rowspan="1" style="width:102px" %)Battery|(% colspan="1" rowspan="1" style="width:157px" %)RSSI|(% colspan="1" rowspan="1" style="width:139px" %)DS18B20 Temp|(% colspan="1" rowspan="1" style="width:141px" %)exit_state/input PA4|(% colspan="1" rowspan="1" style="width:142px" %)adc0|(% colspan="1" rowspan="1" style="width:151px" %)Temperature |(% colspan="1" rowspan="1" style="width:137px" %)Humidity|(% colspan="1" rowspan="1" style="width:69px" %) |(% colspan="1" rowspan="1" style="width:65px" %)

404

|(% colspan="1" style="background-color:#4f81bd; color:white; width:143px" %)SN50V3-NB mod2|(% colspan="1" style="width:103px" %)mod|(% colspan="1" style="width:102px" %)Battery|(% colspan="1" style="width:157px" %)RSSI|(% colspan="1" style="width:139px" %)DS18B20 Temp|(% colspan="1" style="width:141px" %)exit_state/input PA4|(% colspan="1" style="width:142px" %)adc0|(% colspan="1" style="width:151px" %)distance|(% colspan="1" style="width:137px" %) |(% colspan="1" style="width:69px" %) |(% colspan="1" style="width:65px" %)

405

|(% colspan="1" style="background-color:#4f81bd; color:white; width:143px" %)SN50V3-NB mod3|(% colspan="1" style="width:103px" %)mod|(% colspan="1" style="width:102px" %)Battery|(% colspan="1" style="width:157px" %)RSSI|(% colspan="1" style="width:139px" %)adc0|(% colspan="1" style="width:141px" %)exit_state/input PA4|(% colspan="1" style="width:142px" %)adc1|(% colspan="1" style="width:151px" %)Temperature|(% colspan="1" style="width:137px" %)Humidity|(% colspan="1" style="width:69px" %)adc4|(% colspan="1" style="width:65px" %)

406

|(% colspan="1" style="background-color:#4f81bd; color:white; width:143px" %)SN50V3-NB mod4|(% colspan="1" style="width:103px" %)mod|(% colspan="1" style="width:102px" %)Battery|(% colspan="1" style="width:157px" %)RSSI|(% colspan="1" style="width:139px" %)DS18B20 Temp|(% colspan="1" style="width:141px" %)adc0|(% colspan="1" style="width:142px" %)exit_state/input PA4|(% colspan="1" style="width:151px" %)DS18B20 Temp2|(% colspan="1" style="width:137px" %)DS18B20 Temp3|(% colspan="1" style="width:69px" %) |(% colspan="1" style="width:65px" %)

407

|(% colspan="1" style="background-color:#4f81bd; color:white; width:143px" %)SN50V3-NB mod5|(% colspan="1" style="width:103px" %)mod|(% colspan="1" style="width:102px" %)Battery|(% colspan="1" style="width:157px" %)RSSI|(% colspan="1" style="width:139px" %)DS18B20 Temp|(% colspan="1" style="width:141px" %)adc0|(% colspan="1" style="width:142px" %)exit_state/input PA4|(% colspan="1" style="width:151px" %)Weight|(% colspan="1" style="width:137px" %) |(% colspan="1" style="width:69px" %) |(% colspan="1" style="width:65px" %)

408

|(% colspan="1" style="background-color:#4f81bd; color:white; width:143px" %)SN50V3-NB mod6|(% colspan="1" style="width:103px" %)mod|(% colspan="1" style="width:102px" %)Battery|(% colspan="1" style="width:157px" %)RSSI|(% colspan="1" style="width:139px" %)count|(% colspan="1" style="width:141px" %) |(% colspan="1" style="width:142px" %) |(% colspan="1" style="width:151px" %) |(% colspan="1" style="width:137px" %) |(% colspan="1" style="width:69px" %) |(% colspan="1" style="width:65px" %)

409

410

== 3.4 [[Datacake>>https://datacake.co/]] ==

411

412

(% class="wikigeneratedid" %)

413

Dragino NB-IoT sensors has its template in **[[Datacake>>https://datacake.co/]]** Platform. There are two version for NB Sensor,

414

415

(% class="wikigeneratedid" %)

416

As example for S31B-CB. there are two versions: **S31B-CB-1D and S31B-CB-GE.**

417

418

* (% style="color:blue" %)**S31B-CB-1D**(%%): This version have pre-configure DataCake connection. User just need to Power on this device, it will auto connect send data to DataCake Server.

419

420

* (% style="color:blue" %)**S31B-CB-GE**(%%): This verson doesn't have pre-configure Datacake connection. User need to enter the AT Commands to connect to Datacake. See below for instruction.

421

422

=== 3.4.1 For device Already has template ===

423

424

==== 3.4.1.1 Create Device ====

425

426

427

(% style="color:blue" %)**Add Device**(%%) in DataCake.

428

429

[[image:image-20240820110003-1.png]]

430

431

[[image:image-20240820110017-2.png]]

432

433

(% style="color:blue" %)**Choose the correct model**(%%) from template.

434

435

[[image:image-20240820110031-3.png]]

436

437

(% style="color:blue" %)**Fill Device ID**(%%). The device ID needs to be filled in with IMEI, and a prefix of(% style="color:blue" %)** 'f' **(%%)needs to be added.

438

439

[[image:image-20240820110048-4.png]]

440

441

[[image:image-20240820110103-5.png]]

442

443

[[image:image-20240820110114-6.png]]

444

445

446

=== 3.4.2 For Device already registered in DataCake before shipped ===

447

448

==== 3.4.2.1 Scan QR Code to get the device info ====

449

450

451

Users can use their phones or computers to scan QR codes to obtain device data information.

452

453

[[image:image-20240820110129-7.png]]

454

455

[[image:image-20240820110218-9.png]]

456

457

458

==== 3.4.2.2 Claim Device to User Account ====

459

460

By Default, the device is registered in Dragino's DataCake Account. User can Claim it to his account.

461

462

463

=== 3.4.3 Manual Add Decoder in DataCake ( don't use the template in DataCake) ===

464

465

466

**Step1: Add a device**

467

468

[[image:image-20240820110235-10.png]][[image:image-20240129170024-1.png||height="330" width="900"]]

469

470

471

**Step2: Choose your device type,please select dragino NB-IOT device**

472

473

[[image:image-20240820110247-11.png]]

474

475

476

**Step3: Choose to create a new device**

477

478

[[image:image-20240820111016-12.png]]

479

480

481

**Step4: Fill in the device ID of your NB device**

482

483

[[image:image-20240820111101-13.png]]

484

485

486

**Step5: Please select your device plan according to your needs and complete the creation of the device**

487

488

[[image:image-20240820111113-14.png]]

489

490

491

**Step6: Please add the decoder at the payload decoder of the device configuration.**

492

493

**Decoder location:**[[dragino-end-node-decoder/Datacake-Dragino_NB at main · dragino/dragino-end-node-decoder (github.com)>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/Datacake-Dragino_NB]]

494

495

[[image:image-20240820111236-15.png]]

496

497

[[image:image-20240820111248-16.png]]

498

499

500

**Step7: Add the output of the decoder as a field**

501

502

[[image:image-20240820111259-17.png]]

503

504

505

**Step8: Customize the dashboard and use fields as parameters of the dashboard**

506

507

[[image:image-20240820111312-18.png]]

508

509

[[image:image-20240820111322-19.png]]

510

511

[[image:image-20240820111333-20.png]]

512

513

514

=== 3.4.4 For device have not configured to connect to DataCake ===

(% class="lead" %)

Use AT command for connecting to DataCake

519

520

(% style="color:blue" %)**AT+PRO=2,0**

521

522

(% style="color:blue" %)**AT+SERVADDR=67.207.76.90,4445**

523

524

525

== 3.5 Node-Red (via MQTT) ==

526

527

=== 3.5.1 Configure [[Node-Red>>http://wiki.dragino.com/xwiki/bin/view/Main/Node-RED/]] ===

528

529

530

Take S31-NB UDP protocol as an example.

531

532

Dragino provides input flow examples for the sensors.

533

534

User can download the required JSON file through Dragino Node-RED input flow template.

535

536

Download sample JSON file link: [[https:~~/~~/www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0>>url:https://www.dropbox.com/sh/mduw85jcuwsua22/AAAvwPhg9z6dLjJhmZjqBf_ma?dl=0]]

537

538

We can directly import the template.

539

540

The templates for S31-NB and NB95S31B are the same.

541

542

[[image:image-20240820111353-21.png]]

543

544

Please select the NB95S31B template.

545

546

[[image:image-20240820111405-22.png]]

547

548

[[image:image-20240820111418-23.png]]

549

550

[[image:image-20240820111427-24.png]]

551

552

Successfully imported template.

553

554

[[image:image-20240820111438-25.png]]

555

556

Users can set UDP port.

557

558

[[image:image-20240820111448-26.png]]

559

560

561

=== 3.5.2 Simulate Connection ===

562

563

564

We have completed the configuration of UDP. We can try sending packets to node red.

565

566

[[image:image-20240820111504-27.png]]

567

568

[[image:image-20240820111515-28.png]]

569

570

571

=== 3.5.3 Configure NB-IoT Sensors ===

572

573

574

* (% style="color:#037691" %)**AT+PRO=3,0 or 3,5 ** (%%) **~/~/ hex format or json format**

575

* (% style="color:#037691" %)**AT+SUBTOPIC=<device name>or User Defined**

576

* (% style="color:#037691" %)**AT+PUBTOPIC=<device name>or User Defined**

577

* (% style="color:#037691" %)**AT+CLIENT=<device name> or User Defined**

578

* (% style="color:#037691" %)**AT+UNAME=<device name> or User Defined**

579

* (% style="color:#037691" %)**AT+PWD=“Your device token”**

580

581

== 3.6 ThingsBoard.Cloud (via MQTT) ==

582

583

=== 3.6.1 Configure ThingsBoard ===

584

585

==== 3.6.1.1 Create Device ====

586

587

588

Create a New Device in [[ThingsBoard>>url:https://thingsboard.cloud/]]. Record Device Name which is used for MQTT connection.

589

590

[[image:image-20240820112210-29.png]]

591

592

593

==== 3.6.1.2 Create Uplink & Downlink Converter ====

594

595

596

(% style="color:blue" %)**Uplink Converter**

597

598

The purpose of the decoder function is to parse the incoming data and metadata to a format that ThingsBoard can consume. deviceName and deviceType are required, while attributes and telemetry are optional. Attributes and telemetry are flat key-value objects. Nested objects are not supported.

599

600

To create an uplink converter go to the (% style="color:blue" %)**Integrations center**(%%) -> (% style="color:blue" %)**Data converters**(%%) page and click (% style="color:blue" %)**“plus”** (%%)button. Name it (% style="color:blue" %)**“MQTT Uplink Converter”**(%%) and select type (% style="color:blue" %)"**Uplink"**(%%). Use debug mode for now.

601

602

[[image:image-20240820112222-30.png]]

603

604

(% style="color:blue" %)**Downlink Converter**

605

606

The Downlink converter transforming outgoing RPC message and then the Integration sends it to external MQTT broke

607

608

[[image:image-20240820112236-31.png]]

609

610

(% style="color:red" %)**Note: Our device payload is already human readable data. Therefore, users do not need to write decoders. Simply create by default.**

611

612

613

==== 3.6.1.3 MQTT Integration Setup ====

614

615

616

Go to the (% style="color:blue" %)**Integrations center**(%%) **->** (% style="color:blue" %)**Integrations page**(%%) and click **“(% style="color:blue" %)plus(%%)”** icon to add a new integration. Name it (% style="color:blue" %)**“MQTT Integration”**(%%), select type (% style="color:blue" %)**MQTT**;

617

618

[[image:image-20240820112247-32.png]]

619

620

* The next steps is to add the recently created uplink and downlink converters;

621

622

[[image:image-20240820112302-33.png]]

623

624

[[image:image-20240820112316-34.png]]

625

626

(% style="color:blue" %)**Add a topic filter:**

627

628

Consistent with the theme of the node setting.

629

630

You can also select an MQTT QoS level. We use MQTT QoS level 0 (At most once) by default;

631

632

[[image:image-20240820112330-35.png]]

633

634

635

=== 3.6.2 Simulate with MQTT.fx ===

636

637

[[image:image-20240820112340-36.png]]

638

639

[[image:image-20240820112351-37.png]]

640

641

642

=== 3.6.3 Configure NB-IoT Sensor ===

643

644

645

(% style="color:blue" %)**AT Commands**

646

647

* (% style="color:#037691" %)**AT+PRO=3,3 **(%%)** **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.

648

649

* (% style="color:#037691" %)**AT+SUBTOPIC=<device name>**

650

651

* (% style="color:#037691" %)**AT+PUBTOPIC=<device name>**

652

653

* (% style="color:#037691" %)**AT+CLIENT=<device name> or User Defined**

654

655

* (% style="color:#037691" %)**AT+UNAME=<device name> or User Defined**

656

657

* (% style="color:#037691" %)**AT+PWD=<device name> or User Defined**

658

659

Test Uplink by click the button for 1 second

660

661

[[image:image-20240820112404-38.png]]

662

663

[[image:image-20240820112416-39.png]]

664

665

[[image:image-20240820112426-40.png]]

== 3.7 ThingsBoard.Cloud (via COAP) ==

670

671

=== 3.7.1 Configure ThingsBoard ===

672

673

==== 3.7.1.1 Create Uplink & Downlink Converter ====

674

675

676

(% style="color:blue" %)**Uplink Converter**

677

678

The purpose of the decoder function is to parse the incoming data and metadata to a format that ThingsBoard can consume. deviceName and deviceType are required, while attributes and telemetry are optional. Attributes and telemetry are flat key-value objects. Nested objects are not supported.

679

680

To create an uplink converter go to the (% style="color:blue" %)**Integrations center**(%%) -> (% style="color:blue" %)**Data converters**(%%) page and click (% style="color:blue" %)**“plus”** (%%)button. Name it (% style="color:blue" %)**“COAP Uplink Converter”**(%%) and select type (% style="color:blue" %)"**Uplink"**(%%). Use debug mode for now.

681

682

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729141300-1.png?width=1115&height=552&rev=1.1||alt="image-20240729141300-1.png" height="579" width="1168"]]

683

684

685

(% style="color:blue" %)**Downlink Converter**

686

687

The Downlink converter transforming outgoing RPC message and then the Integration sends it to external COAP broker.

688

689

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729142505-3.png?width=1023&height=507&rev=1.1||alt="image-20240729142505-3.png" height="579" width="1168"]]

690

691

692

==== 3.7.1.2 COAP Integration Setup ====

693

694

695

Go to the (% style="color:blue" %)**Integrations center**(%%) **->** (% style="color:blue" %)**Integrations page**(%%) and click **“(% style="color:blue" %)plus(%%)”** icon to add a new integration. Name it (% style="color:blue" %)**“CoAP Integration”**(%%), select type **COAP **(% style="color:blue" %);

696

697

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729144058-4.png?width=1021&height=506&rev=1.1||alt="image-20240729144058-4.png" height="583" width="1176"]]

698

699

700

The next steps is to add the recently created uplink converters;

701

702

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729150142-5.png?width=1023&height=507&rev=1.1||alt="image-20240729150142-5.png" height="591" width="1193"]]

703

704

705

==== 3.7.1.3 Add COAP Integration ====

706

707

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729161543-9.png?width=1009&height=500&rev=1.1||alt="image-20240729161543-9.png" height="590" width="1191"]]

708

709

710

=== 3.7.2 Node Configuration(Example: Connecting to the Thingsboard platform) ===

711

712

==== 3.7.2.1 Instruction Description ====

713

714

715

* AT+PRO=1,0(HEX format uplink) &AT+PRO=1,5(JSON format uplink)

716

* AT+SERVADDR=COAP Server Address,5683

717

718

Example: AT+SERVADDR=int.thingsboard.cloud,5683(The address is automatically generated when the COAP integration is created)

719

720

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729172305-12.png?width=624&height=361&rev=1.1||alt="image-20240729172305-12.png" height="417" width="721"]]

721

722

Note:The port for the COAP protocol has been fixed to 5683

* AT+URL1=11,"i"

* AT+URL2=11,"Needs to be consistent with the CoAP endpoint URL in the platform"

727

*

728

729

-CB devices using a (% style="color:red" %)**BG95-M2**(%%) module, you need to configure (% style="color:red" %)**TWO**(%%) URL commands,

e.g.

* AT+URL1=11, "i"

* AT+URL2=11,"faaaa241f-af4a-b780-4468-c671bb574858"

735

736

737

[[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729172500-14.png?width=700&height=403&rev=1.1||alt="image-20240729172500-14.png" height="413" width="718"]]

738

739

740

== 3.8 [[Tago.io>>url:https://admin.tago.io/]] (via MQTT) ==

741

742

=== 3.8.1 Create device & Get Credentials ===

743

744

745

We use MQTT Connection to send data to [[Tago.io>>url:https://admin.tago.io/]]. We need to Create Device and Get MQTT Credentials first.

746

747

[[image:image-20240820112516-41.png]]

748

749

[[image:image-20240820112526-42.png]]

750

751

Go to the Device section and create a device. Then, go to the section tokens and copy your device-token.

752

753

[[image:image-20240820112539-43.png]]

754

755

The device needs to enable the TLS mode and set the (% style="color:blue" %)**AT+TLSMOD=1,0**(%%) command.

756

757

(% style="color:blue" %)**On the Connection Profile window, set the following information:**

758

759

* (% style="color:#037691" %)**Profile Name: “Any name”**

760

761

* (% style="color:#037691" %)**Broker Address: mqtt.tago.io**

762

763

* (% style="color:#037691" %)**Broker Port: 8883**

764

765

* (% style="color:#037691" %)**Client ID: “Any value”**

766

767

(% style="color:blue" %)**On the section User credentials, set the following information:**

768

769

* (% style="color:#037691" %)**User Name: “Any value”** (%%) **~/~/ Tago validates your user by the token only**

770

771

* (% style="color:#037691" %)**Password: “Your device token”**

772

773

* (% style="color:#037691" %)**PUBTOPIC: “Any value”**

774

775

* (% style="color:#037691" %)**SUBTOPIC: “Any value”**

776

777

(% style="color:blue" %)**AT command:**

778

779

* (% style="color:#037691" %)**AT+PRO=3,0 or 3,5 ** (%%) **~/~/ hex format or json format**

780

781

* (% style="color:#037691" %)**AT+SUBTOPIC=<device name>or User Defined**

782

783

* (% style="color:#037691" %)**AT+PUBTOPIC=<device name>or User Defined**

784

785

* (% style="color:#037691" %)**AT+CLIENT=<device name> or User Defined**

786

787

* (% style="color:#037691" %)**AT+UNAME=<device name> or User Defined**

788

789

* (% style="color:#037691" %)**AT+PWD=“Your device token”**

790

791

=== 3.8.2 Simulate with MQTT.fx ===

792

793

794

[[image:image-20240820112552-44.png]]

795

796

[[image:image-20240820112604-45.png]]

797

798

Users can run the (% style="color:blue" %)**AT+PRO=3,5**(%%) command, and the payload will be converted to **JSON format**.

799

800

[[image:image-20240820112615-46.png]]

801

802

[[image:image-20240820112626-47.png]]

803

804

805

=== 3.8.3 tago data ===

806

807

808

[[image:image-20240820112637-48.png]]

809

810

[[image:image-20240820112647-49.png]]

811

812

813

== 3.9 TCP Connection ==

814

815

816

(% style="color:blue" %)**AT command:**

817

818

* (% style="color:#037691" %)**AT+PRO=4,0 ** (%%) ~/~/ Set to use TCP protocol to uplink(HEX format)

819

820

* (% style="color:#037691" %)**AT+PRO=4,1 ** (%%) ~/~/ Set to use TCP protocol to uplink(JSON format)

821

822

* (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5600 ** (%%) ~/~/ to set TCP server address and port

823

824

(% style="color:blue" %)**Sensor Console Output when Uplink:**

825

826

[[image:image-20240820112704-50.png]]

827

828

(% style="color:blue" %)**See result in TCP Server:**

829

830

[[image:image-20240820112716-51.png]]

831

832

833

== 3.10 AWS Connection ==

834

835

836

Users can refer to [[Dragino NB device connection to AWS platform instructions>>http://wiki.dragino.com/xwiki/bin/view/Dragino%20NB%20device%20connection%20to%20AWS%20platform%20instructions/#H1.LogintotheplatformandfindIoTcore]]

837

838

839

= 4. COAP/UDP/MQTT/TCP downlink =

840

841

== 4.1 MQTT (via MQTT.fx) ==

842

843

844

Configure MQTT connections properly and send downlink commands to configure nodes through the Publish function of MQTT.fx//.//

845

846

**1.** Configure node MQTT connection (via MQTT.fx):

847

848

(% style="color:blue" %)**AT command:**

849

850

* (% style="color:#037691" %)**AT+PRO=3,0 or 3,5 ** (%%)~/~/ hex format or json format

851

852

* (% style="color:#037691" %)**AT+SUBTOPIC=User Defined**

853

854

* (% style="color:#037691" %)**AT+PUBTOPIC=User Defined**

855

856

* (% style="color:#037691" %)**AT+UNAME=<device name> or User Defined**

857

858

* (% style="color:#037691" %)**AT+PWD=<device name> or User Defined**

859

860

* (% style="color:#037691" %)**AT+SERVADDR=8.217.91.207,1883 ** (%%) ~/~/ to set MQTT server address and port

861

862

(% style="color:red" %)**Note: To uplink and downlink via MQTT.fx, we need set the publish topic and subscribe topic different, for example: AT+SUBTOPIC=SE01_SUB & AT+PUBTOPIC=SE01_PUB.**

863

864

[[image:image-20240820112732-52.png]][[image:image-20240820112758-53.png]]

865

866

867

**2. **When the node uplink packets, we can observe the data in MQTT.fx.

868

869

[[image:image-20240820112813-54.png]]

870

871

872

**3. **The downlink command can be successfully sent only when the downlink port is open.

873

874

The downlink port is opened for about 3 seconds after uplink packets are sent.

875

876

Therefore, when we see the node uplink packets in the **Subscribe** window, we need to immediately switch to the **publish** window to publish the **hex format** command.

877

878

[[image:image-20240820112824-55.png]]

879

880

[[image:image-20240820112835-56.png]]

881

882

(% style="color:red" %)**Note: Users can edit the hex command in advance. When the node uplink, directly click the publish button several times to increase the success rate of command configuration.**

883

884

885

== 4.2 UDP (via Thingseye) ==

886

887

888

(% style="color:red" %)**Note:**(%%) The UDP service on the ThingsEye platform needs to be built by the user. (Description Link:[[UDP service building instructions>>http://www.ithingsboard.com/docs/user-guide/integrations/udp/]])

889

890

After the node is successfully connected to the platform, you need to select the corresponding node (you can refer to the node's IMEI to find it)

891

892

[[image:image-20240820141843-2.png||height="546" width="821"]]

893

894

After clicking Show Node Details Page, (% style="color:blue" %)**Select Properties ~-~-- select Shared Properties ~-~-- click Add Properties**

895

896

[[image:image-20240820143316-3.png||height="555" width="1170"]]

897

898

After clicking Add Shared Attribute, set the key to (% style="color:red" %)**value**(%%), and write the command that needs to be downlinked in the Downlink Command Input box

899

900

(% style="color:red" %)**(Note: Downlinks can only be downlinked in string format, otherwise the node will not recognize the downlink command.)**

901

902

[[image:image-20240820143820-4.png||height="554" width="1168"]]

903

904

After the command is successfully added, the platform will send the command down on the node's next uplink.

905

906

[[image:image-20240820144913-6.png||height="585" width="1232"]]

907

908

[[image:image-20240820145133-7.png||height="582" width="1227"]]

909

910

Upon successful issuance, the platform automatically eliminates the attributes from the queue and waits for the next addition of new attributes

911

912

[[image:image-20240820145309-8.png]]

913

914

915

= 5. GPS positioning function =

916

917

== 1. Turn on GPS function ==

918

919

920

(% class="wikigeneratedid" %)

921

AT+GPS=1 or 0 ~/~/ GPS function on or off

922

923

924

== 2. Extend the time to turn on GNSS ==

925

926

927

AT+GNSST=30 ~/~/ GPS search for positioning information for 30 seconds

928

929

930

== 3. Get or set GPS positioning interval in units of hour ==

931

932

933

AT+GTDC=24 ~/~/ The device will activate GPS positioning every 24 hours

= 6. FAQ =

== 6.1 What is the usage of Multi Sampling and One Uplink? ==

939

940

941

The NB series has the feature for Multi Sampling and one uplink. See one of them

942

943

[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-NB_BN-IoT_Sensor_Node_User_Manual/#H2.5Multi-SamplingsandOneuplink>>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-NB_BN-IoT_Sensor_Node_User_Manual/#H2.5Multi-SamplingsandOneuplink]]

944

945

User can use this feature for below purpose:

946

947

1. **Reduce power consumption**. The NB-IoT transmit power is much more higher than the sensor sampling power. To save battery life, we can sampling often and send in one uplink.

948

1. Give more sampling data points.

949

1. Increase reliable in transmission. For example. If user set

950

1*. **AT+TR=1800** ~/~/ The unit is seconds, and the default is to record data once every 1800 seconds (30 minutes, the minimum can be set to 180 seconds)

951

1*. **AT+NOUD=24** ~/~/ The device uploads 24 sets of recorded data by default. Up to 32 sets of record data can be uploaded.

952

1*. **AT+TDC=7200** ~/~/ Uplink every 2 hours.

953

1*. this will mean each uplink will actually include the 6 uplink data (24 set data which cover 12 hours). So if device doesn't lost 6 continue data. There will not data lost.

954

955

== 6.2 Why the uplink JSON format is not standard? ==

956

957

958

The json format in uplink packet is not standard Json format. Below is the example. This is to make the payload as short as possible, due to NB-IoT transmit limition, a standard Json is not able to include 32 sets of sensors data with timestamp.

959

960

The firmware version released after 2024, Mar will use change back to use Json format. Detail please check changelog.

961

962

[[image:image-20240820112848-57.png]]

963

964

965

= 7. Trouble Shooting: =

966

967

== 7.1 Checklist for debuging Network Connection issue. Signal Strenght:99 issue. ==

968

969

970

There are many different providers provide NB-IoT service in the world. They might use different band, different APN & different operator configuration. Which makes connection to NB-IoT network is complicate.

971

972

If end device successfully attached NB-IoT Network, User can normally see the signal strengh as below (between 0~~31)

973

974

[[image:image-20240820112859-58.png]]

975

976

If fail to attach network, it will shows signal 99. as below:

977

978

[[image:image-20240820112908-59.png]]

979

980

(% class="lead" %)

981

When see this issue, below are the checklist:

982

983

* Does your SIM card support NB-IoT network? If SIM card doesn't not specify support NB-IoT clearly, normally it doesn't support. You need to confirm with your operator.

984

* Do you configure the correct APN? [[Check here for APN settings>>http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.1GeneralConfiguretoattachnetwork]].

985

* Do you lock the frequency band? This is the most case we see. [[Explain and Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.2SpeedUpNetworkAttachtime]].

986

* Check if the device is attached to Carrier network but reject. (need to check with operator).

987

* Check if the antenna is connected firmly.

988

989

If you have check all above and still fail. please send console log files (as many as possible) to [[support@dragino.com>>mailto:support@dragino.com]] so we can check.

990

991

992

== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)7.2 Why sometime the AT Command is slow in reponse?(%%) ==

993

994

995

When the MCU is communicating with the NB-IoT module, the MCU response of AT Command will become slower, it might takes several seconds to response.

996

997

[[image:image-20240820113015-60.png]]

998

999

1000

== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)7.3 What is the Downlink Command by the -CB device?(%%) ==

1001

1002

(% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %)

1003

=== UDP: ===

1004

1005

(% data-sider-select-id="14a4790e-7faa-4508-a4dd-7605a53f1cb3" %)

1006

Its downlink command is the same as the AT command, but brackets are required.

Example:

{AT+TDC=300}

(% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)

=== MQTT: ===

Json：

The Json format in MQTT mode needs to be configured with all commands.

1018

If you have configurations that need to be changed, please change them in the template below.

Template:

{

"AT+SERVADDR":"119.91.62.30,1882",

1023

"AT+CLIENT":"JwcXKjQBNhQ2JykDDAA5Ahs",

1024

"AT+UNAME":"usenamedragino",

1025

"AT+PWD":"passworddragino",

"AT+PUBTOPIC":"123",

"AT+SUBTOPIC":"321",

"AT+TDC":"7200",

"AT+INTMOD":"0",

"AT+APN":"NULL",

"AT+5VT":"0",

"AT+PRO":"3,5",

"AT+TR":"900",

"AT+NOUD":"0",

"AT+CSQTIME":"5",

"AT+DNSTIMER":"0",

"AT+TLSMOD":"0,0",

"AT+MQOS":"0",

"AT+TEMPALARM1":"0",

"AT+TEMPALARM2":"10",

"AT+TEMPALARM3":"0"

}

Hex：

MQTT's hex format. Since many commands need to support strings, only a few commands are supported.

1047

1048

The supported commands are consistent with LoRaWAN's hex commands.

1049

Please refer to the following link to obtain the hex format:

1050

1051

[[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/]]

1052

1053

1054

== 7.4 What if the signal is good but the domain name resolution fails? ==

1055

1056

1057

If the domain name resolution fails, first check whether the domain name is correct, users can use their own website domain name resolution tool to verify the domain name.

1058

1059

[[image:image-20240827150705-6.png||height="489" width="687"]]

1060

1061

If the domain name is correct, but the domain name cannot be resolved, the user can turn off the domain name resolution function(AT+GDNS=1) and use the domain name communication directly.

* Set the DNS

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

1066

1067

**AT+GDNS=0** ~/~/ Default. Automatically resolves the domain name and uses the resolved IP to communicate.

1068

1069

**AT+GDNS=1 **~/~/ Disabling Domain name resolution. Use the domain name directly to communicate.

1070

1071

(% style="color:red" %)**Note: For -CB products, with the exception of AT+PRO=2,5, all protocols and payload formats support direct domain communication.**

Example:

[[image:image-20240827150121-5.png||height="476" width="680"]][[image:image-20240827145055-4.png||height="484" width="678"]]

1076

1077

1078

== 7.5 GPS debugging ==

1079

1080

1081

Indoor GPS signal is very weak, **outdoor** positioning is generally recommended.

1082

1083

[[image:image-20240903104250-9.png||height="275" width="614"]]

1084

1085

1086

[[image:image-20240903104431-10.png||height="291" width="621"]]

1087

1088

1089

=== 7.5.1 GPS commands ===

1090

1091

1092

The following are three related AT commands that introduce GPS functions.

1093

1094

* **Turn on/off GPS**

1095

1096

(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GPS **

1097

1098

**Ex1: **AT+GPS=0 ~/~/ Turn off GPS

1099

1100

**Ex2: **AT+GPS=1 ~/~/ Turn on GPS

1101

1102

(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x11(%%)**

1103

1104

Format: Command Code (0x11) followed by 1 byte.

1105

1106

Example: Downlink Payload: **11 01 **~/~/ AT+GPS=1

1107

1108

* **Set GNSS open time**

1109

1110

Extend the time to turn on GNSS. The automatic GPS location time is extended when the node is activated.

1111

1112

(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GNSST**

1113

1114

Example: AT+GNSST=30 ~/~/ Set the GPS positioning time to 30 seconds

1115

1116

(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x10(%%)**

1117

1118

Format: Command Code (0x10) followed by 2 bytes.

1119

1120

Example: Downlink Payload: **10 00 1E **~/~/ AT+GNSST=30

1121

1122

* **Set GPS positioning interval**

1123

1124

Feature: Set GPS positioning interval (unit: hour).

1125

1126

When GPS is enabled, the node automatically locates and uplinks each time it passes **GTDC time** after activation.

1127

1128

(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GTDC**

1129

1130

Example: AT+GTDC=24 ~/~/ Set the GPS positioning interval to 24h.

1131

1132

(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x12(%%)**

1133

1134

Format: Command Code (0x12) followed by 3 bytes.

1135

1136

Example: 24 hours: 24(D)=0x18(H)

1137

1138

Downlink Payload: **12 00 00 18 **~/~/ AT+GTDC=24

1139

1140

1141

=== 7.5.2 GPS workflow ===

1142

1143

1144

The whole working process after the GPS function is enabled((% style="color:#037691" %)**AT+GPS=1**(%%)) is as follows:

1145

1146

~1. When activate the node, the node will turn on the GNSS, if the GPS signal is good, the node will print and upload the position information with the first data packet immediately.

1147

1148

If the signal is not good, it may take the whole (% style="color:#037691" %)**GNSST**(%%) time but still can not search the latitude and longitude information, at this time the node uploads the latitude and longitude all to 0.

1149

1150

So if there is a failure of positioning, the user can extend the (% style="color:#037691" %)**GNSST**(%%) time appropriately.

1151

1152

2. Each TDC time node is not repositioned and the positioning interval is determined by the AT+GTDC time.

1153

1154

The latitude and longitude payload uplinked at each TDC time is the GPS positioning information from the previous (% style="color:#037691" %)**GTDC**(%%) time.

1155

1156

Only when the node is activated or every (% style="color:#037691" %)**GTDC**(%%) time is reached, the node turns on the GNSS and we can observe the GPS search information through the serial assistant or Bluetooth tool.

1157

1158

1159

=== 7.5.3 GPS debugging methods ===

1160

1161

1162

In summary, we can deduce the methods of debugging GPS:

1163

1164

* **Check whether the GPS function is enabled.**

1165