Changes for page ThingsBoard

Last modified by Dilisi S on 2025/04/23 19:23

From version 190.1
edited by Dilisi S
on 2025/03/27 23:15
Change comment: Uploaded new attachment "integration-added.png", version {1}
To version 154.1
edited by Dilisi S
on 2025/03/17 00:15
Change comment: Uploaded new attachment "ins1.png", version {1}

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... ... @@ -22,10 +22,7 @@
22 22  To complete this tutorial, you need to have the following:
23 23  
24 24  * ThingsBoard cloud account
25 -* MQTT Broker (public or private) such as,
26 -** **[[HiveMQ Cloud>>https://www.hivemq.com]] - You can create a free account to try it or subscribe for a paid account. - We use HiveMQ Cloud as the MQTT broker to build example in this tutorial.**
27 -** [[emqx>>https://www.emqx.com/zh/mqtt/public-mqtt5-broker]] - The public MQTT server is only used for MOTT learning and testing, and should not be used in the production environment.
28 -** [[lns1.thingseye.io>>http://lns1.thingseye.io/]] - This is Dragino's MQTT broker, which requires a CA certificate to use.
25 +* HiveMQ Cloud account
29 29  
30 30  == 2.1 ThingsBoard Cloud ==
31 31  
... ... @@ -69,9 +69,7 @@
69 69  
70 70  == 2.2 HiveMQ Cloud ==
71 71  
72 -=== 2.2.1 HiveMQ Cloud ===
73 73  
74 -
75 75  Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
76 76  
77 77  Click on the **Start Free** button.
... ... @@ -146,157 +146,145 @@
146 146  You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
147 147  
148 148  
149 -=== 2.2.2 emqx ===
144 += 3. Data Converters =
150 150  
151 151  
152 -The [[emqx>>https://www.emqx.com/zh/mqtt/public-mqtt5-broker]] public MQTT server is only used for MOTT learning and testing, and should not be used in the production environment.
147 +In **ThingsBoard**, **Data Converters** are components used to transform incoming or outgoing data between different formats, typically to convert raw telemetry data from devices into a structured format that ThingsBoard can understand, or vice versa.
153 153  
154 154  
155 -[[image:emqx.png||height="420" width="500"]]
150 +== 3.1 Uplink ==
156 156  
157 157  
158 -=== 2.2.3 Ins1.thingseye.io ===
153 +In the left navigation, click **Integrations center**, and then click **Data converters**.
159 159  
160 -[[lns1.thingseye.io>>http://lns1.thingseye.io/]] is the Dragino's MQTT broker, which requires a CA certificate file, Certificate file, and the Private key file to use.
161 161  
162 -If customers need to use this MQTT connection with ThingsBoard, they need to contact the TE team to obtain three license files.
163 163  
164 -[[image:ins1.png||height="310" width="500"]]
157 +[[image:data-converters-list-empty.png]]
165 165  
166 166  
167 -= 3. Creating Devices =
160 +On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
168 168  
169 169  
170 -First, you need to create devices in ThingsBoard to represent your physical devices. For example, you can name it **Device A**, and the second device could be **Device B** or any name you prefer. The device name should be unique within the **Devices** space.
171 171  
164 +[[image:create-new-converter-menu.png||height="259" width="500"]]
172 172  
173 -In the left navigation, click Entities -> Devices.
174 174  
175 -Click the **Add Device** button (the button with the **+** sign), and from the dropdown menu, click **Add new device**.
167 +The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
176 176  
177 -In the **Add new device** dialog box, enter the device name in the **Name** text box. For example, we will use **Device A**.
169 +Click on the **TBEL** button if not selected it by default. Delete the existing decoder function in the code editor. Now copy and paste the following decoder function written in **TBEL (ThingsBoard Expression Language)** in to the **code editor**. This decoder function is compatible for both NB and CB series devices.
178 178  
179 -Click the **Add** button.
171 +{{code language="JavaScript"}}
172 +/** Decoder **/
180 180  
181 -Skip the **connectivity testing** by clicking the **Close** button.
174 +// decode payload to string
175 +var payloadStr = decodeToString(payload);
176 +var data = JSON.parse(payloadStr);
182 182  
183 -The device is created and listed on the **Devices** page. Note that its initial state is **Inactive** because it has not received any data yet.
178 +var deviceName = metadata.topic.split("/")[3];
179 +// decode payload to JSON
180 +var deviceType = 'sensor';
184 184  
182 +// Result object with device attributes/telemetry data
183 +var result = {
184 + deviceName: deviceName,
185 + deviceType: deviceType,
186 + attributes: {
187 + integrationName: metadata['integrationName'],
188 + },
189 + telemetry: {
190 + temperature: data.temperature,
191 + humidity: data.humidity,
192 + }
193 +};
185 185  
186 -= 4. Data Converters =
195 +/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
187 187  
197 +return result;
198 +{{/code}}
188 188  
189 -In **ThingsBoard**, **Data Converters** are components used to transform incoming or outgoing data between different formats, typically to convert raw telemetry data from devices into a structured format that ThingsBoard can understand, or vice versa.
190 190  
201 +Click on the **Add** button.
191 191  
192 -== 4.1 Uplink ==
193 193  
194 194  
195 -In the left navigation, click **Integrations center**, and then click **Data converters**.
205 +[[image:add-uplink-data-converter.png||height="529" width="500"]]
196 196  
197 197  
198 -[[image:data-converters-list-empty.png]]
208 +You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
199 199  
210 +[[image:data-converter-list-showing-uplink-dc.png]]
200 200  
201 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
202 202  
203 203  
214 +== 3.2 Downlink ==
204 204  
205 -[[image:create-new-converter-menu.png||height="259" width="500"]]
206 206  
217 +On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
207 207  
208 -The **Add data converter** window will appear.
209 209  
210 -Let's create an uplink data converter for the device named '**Device A**'. Name it ‘**MQTT Uplink Converter - Device A**’ and select the Type as **Uplink**.
220 +[[image:create-new-converter-menu.png||width="500"]]
211 211  
212 -Click on the **TBEL** button if it has not been selected by default.
213 213  
214 -Modify the default TBEL function to match with your device as described below:
215 215  
224 +The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
216 216  
217 -* Uncomment** line 11**:
226 +Click on the **TBEL** button if not selected it by default. Now copy and paste the following encoder function written in **TBEL (ThingsBoard Expression Language)** in to the **code editor**. This encoder function is compatible for both NB and CB series devices.
218 218  
219 -//var data = decodeToJson(payload)//
220 220  
229 +{{code language="JavaScript"}}
230 +// Encode downlink data from incoming Rule Engine message
221 221  
222 -* **Line 13**: Assign your device name to the **deviceName** field. - We used **Device A** as it is to match with our device, **Device A **in the Devices section.
223 -* From **line 38**: Modify the telemetry section to allow parsed data to be assigned to the fields.
232 +// msg - JSON message payload downlink message json
233 +// msgType - type of message, for ex. 'ATTRIBUTES_UPDATED', 'POST_TELEMETRY_REQUEST', etc.
234 +// metadata - list of key-value pairs with additional data about the message
235 +// integrationMetadata - list of key-value pairs with additional data defined in Integration executing this converter
224 224  
225 -//telemetry: {
226 - temperature: data.temperature,
227 - humidity: data.humidity,
228 - rawData: payloadStr
229 - }//
237 +/** Encoder **/
230 230  
239 +var data = {};
231 231  
232 -The modified uplink decoder function to match with **Device A** is shown below.
241 +// Process data from incoming message and metadata
233 233  
234 -{{code language="JavaScript"}}
235 -// Decode an uplink message from a buffer
236 -// payload - array of bytes
237 -// metadata - key/value object
243 +data.tempFreq = msg.temperatureUploadFrequency;
244 +data.humFreq = msg.humidityUploadFrequency;
238 238  
239 -/** Decoder **/
246 +data.devSerialNumber = metadata['ss_serialNumber'];
240 240  
241 -// decode payload to string
242 -var payloadStr = decodeToString(payload);
248 +// Result object with encoded downlink payload
249 +var result = {
243 243  
244 -// decode payload to JSON
245 -var data = decodeToJson(payload);
251 + // downlink data content type: JSON, TEXT or BINARY (base64 format)
252 + contentType: "JSON",
246 246  
247 -var deviceName = 'Device A';
248 -var deviceType = 'thermostat';
249 -var customerName = 'Customer C';
250 -var groupName = 'thermostat devices';
251 -var manufacturer = 'Example corporation';
252 -// use assetName and assetType instead of deviceName and deviceType
253 -// to automatically create assets instead of devices.
254 -// var assetName = 'Asset A';
255 -// var assetType = 'building';
254 + // downlink data
255 + data: JSON.stringify(data),
256 256  
257 -// Result object with device/asset attributes/telemetry data
258 -var result = {
259 -// Use deviceName and deviceType or assetName and assetType, but not both.
260 - deviceName: deviceName,
261 - deviceType: deviceType,
262 -// assetName: assetName,
263 -// assetType: assetType,
264 -// customerName: customerName,
265 - groupName: groupName,
266 - attributes: {
267 - model: 'Model A',
268 - serialNumber: 'SN111',
269 - integrationName: metadata['integrationName'],
270 - manufacturer: manufacturer
271 - },
272 - telemetry: {
273 - temperature: data.temperature,
274 - humidity: data.humidity,
275 - rawData: payloadStr
276 - }
257 + // Optional metadata object presented in key/value format
258 + metadata: {
259 + topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
260 + }
261 +
277 277  };
278 278  
279 -/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
280 -
281 281  return result;
282 282  {{/code}}
283 283  
284 284  
285 -Once you modify the decoder function, click on the **Add** button.
268 +Click on the **Add** button.
286 286  
287 287  
288 288  
289 -[[image:ul-data-converter-device-a.png||height="524" width="500"]]
272 +[[image:add-downlink-data-converter.png||height="529" width="500"]]
290 290  
291 291  
292 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
275 +You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
293 293  
294 294  
295 -[[image:ul-data-converter-added.png||height="257"]]
278 +[[image:data-converters-list.png]]
296 296  
297 297  
298 298  
299 -= 5. Add Integration =
282 += 4. Add Integration =
300 300  
301 301  
302 302  In the left navigation, click **Integrations center**, and then click **Integrations**.
... ... @@ -316,7 +316,7 @@
316 316  **Basic settings:**
317 317  
318 318  * **Integration type**: MQTT
319 -* **Name**: MQTT integration - Device A
302 +* **Name**: MQTT integration NB/CB
320 320  * **Enable integration**: YES
321 321  * **Allows create devices or assets**: YES
322 322  
... ... @@ -323,11 +323,10 @@
323 323  Click **Next** button.
324 324  
325 325  
326 -[[image:add-integration-basic-settings.png||height="504" width="500"]]
327 327  
310 +[[image:add-integration-basic-settings.png||height="511" width="500"]]
328 328  
329 329  
330 -
331 331  **Uplink data converter:**
332 332  
333 333  * Click on the **Select existing** button.
... ... @@ -336,39 +336,36 @@
336 336  Click **Next** button.
337 337  
338 338  
339 -[[image:add-integration-ul-data-converter.png||height="505" width="500"]]
340 340  
322 +[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
341 341  
342 342  
343 343  **Downlink data converter:**
344 344  
345 -Dragino NB/CB devices don't require a downlink data converter to decode their payloads, so you can skip this step.
327 +* Click on the **Select existing** button.
328 +* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
346 346  
347 -* Click on the **Skip **button in the Downlink data converter section.
330 +Click **Next** button.
348 348  
349 -Click **Skip** button.
350 350  
351 351  
352 -[[image:integration-dl-skip.png||height="511" width="500"]]
334 +[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
353 353  
354 354  
355 -
356 356  **Connection:**
357 357  
358 -* **Host**: Host URL (Eg. **//011731f7xxxxxxxxxxxfbbedfc63f4.s1.eu.hivemq.cloud//**)
339 +* **Host**: Cluster URL (Eg. 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud)
359 359  * **Port**: 8883
360 -* **Credentials type**: Basic
341 +* **Credentials**: Basic
342 +* **Enable SSL**: YES
361 361  * **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
362 362  * **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
363 -* **Enable SSL**: YES
364 -* **Topic: device/a** (The topic can be anything; you can even use just the device name.)
345 +* **Topic:** tb/mqtt-integration-tutorial/sensors/+/telemetry (the + replaces any 'device name' and creates devices in the Entities -> Devices)
365 365  * **QoS:** 0-At most once
366 366  
348 +[[image:add-integration-connection.png||height="511" width="500"]]
367 367  
368 368  
369 -[[image:add-integartion-connection.png||height="505" width="500"]]
370 -
371 -
372 372  Click on the **Advanced settings** button.
373 373  
374 374  * **Clean session:** YES
... ... @@ -396,91 +396,93 @@
396 396  Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
397 397  
398 398  
378 +
399 399  [[image:new-integration-pending.png]]
400 400  
401 401  
402 -= 6. Verifying the receipt of data from virtual devices =
382 += 5. Verifying the receipt of data from virtual devices =
403 403  
404 404  
405 -== 6.1 How does it work? ==
385 +== 5.1 How does it work? ==
406 406  
407 407  
408 408  We use the Mosquitto MQTT client to simulate MQTT messages, acting as a virtual device. First, install the Mosquitto client on your computer from [[this link>>url:https://mosquitto.org/download/]]. The Mosquitto client publishes messages to the MQTT broker (HiveMQ) on a specified MQTT topic. ThingsBoard subscribes to these messages using the same topic.
409 409  
410 -The Mosquitto client publishes messages (payloads) on the topic **/device/a**. Of course, you can use any topic for testing.
390 +The Mosquitto client publishes messages on the topic v1/devices/[device_name]/telemetry. The [device_name]placeholder can be replaced with any device name, for example, 'S31B-NB'. Then, the MQTT topic would be v1/devices/S31B-NB/telemetry.
411 411  
412 -(% id="cke_bm_37386S" style="display:none" %) (%%)The MQTT payload format is as follows:
392 +On the ThingsBoard side, we configure the MQTT topic subscription as v1/devices/+/telemetry. The + wildcard represents any device name and allows ThingsBoard to automatically create (provision) a device with that name, such as S31B-NB, for example.
413 413  
414 -{{code language="none"}}
415 -{"IMEI": "350693903995577", "temperature":25, "humidity":80, "pressure":1005}
416 -{{/code}}
417 417  
418 -Once ThingsBoard receives this message, it forwards this payload to the matching device through the integration.
395 +**The new device is created the first time the MQTT topic is received. For subsequent MQTT topics with the same device name, no duplicate devices will be created.**
419 419  
420 420  
421 -== 5.2 Sending messages ==
398 +For example, if you send two MQTT messages with different device names in the topic:
422 422  
400 +1. v1/devices/**S31B-NB**/telemetry
401 +1. v1/devices/**LDS25-NB**/telemetry
423 423  
424 -On the terminal, issue the following MQTT command which simulates the device S31B-NB. The message payload contains the fields temperature anhumidity, which hold the values S31B-NB and 27, respectively. This payload is also (technically) known as telemetry.
403 +ThingsBoard will create two devices named **S31B-NB** and **LDS25-NB** in the **//Devices//** section.
425 425  
405 +
406 +The MQTT payload format is as follows, which is common for all ~-~-NB and ~-~-CB series devices:
407 +
426 426  {{code language="none"}}
427 -mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -u "xxxxx" -P "xxxxx" -t "device/a" -m '{"IMEI":"350693903995577", "temperature":30, "humidity":80, "pressure":1005}'
409 +{"temperature":10.4, "humidity":85}
428 428  {{/code}}
429 429  
430 -If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
431 431  
413 +== 5.2 Sending messages ==
432 432  
433 -[[image:integration-active.png]]
434 434  
416 +On the terminal, issue the following MQTT command which simulates the device S31B-NB. The message payload contains the fields temperature and humidity, which hold the values 10.4 and 85, respectively. This payload is also (technically) known as telemetry.
435 435  
418 +{{code language="none"}}
419 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "xxxxx" -P "xxxxx" -m '{"temperature":10.4, "humidity":85}'
420 +{{/code}}
436 436  
422 +If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
437 437  
438 -== 6.3 Viewing messages ==
439 439  
425 +[[image:integration-active.png]]
440 440  
441 -Go back to the **Integrations** page.
442 442  
443 -Click on the **MQTT integration NB/CB** in the **Integrations** page to see its details.
428 +Also, a new device named **S31B-NB** will appear under **//Entities -> Devices -> All//**. This means the first MQTT message triggers ThingsBoard to provision a device named **S31B-NB**.
444 444  
445 -Click on the **Edit** button (//**pen icon**//).
446 446  
447 -Click on the **Disabled** button in the upper-right corner.
431 +[[image:device-provision-1.png]]
448 448  
449 -Turn on the **All messages (15 min)** option. This will enable displaying all messages in the **Events** tab. This setting will expire in 15 minutes, and you will need to repeat the same steps if you want to view the messages in the Events tab later.
450 450  
451 -Click on the **Apply** button.
434 +Click on the device S31B-NB on the devices list to see its details.
452 452  
453 -Then click on the **Apply changes** (//**tick icon**//) button.
436 +Then go to the **Latest telemetry** tab.
454 454  
438 +You can see the fields temperature and humidity with the values you previously sent using the MQTT message.
455 455  
456 -[[image:Screenshot 2025-03-18 at 09.23.10.png]]
457 457  
441 +[[image:telemetry-1.png]]
458 458  
459 -Now go to the **Events** tab.
460 460  
461 -Select the Event type as **Debug** from the dropdown list.
444 +Now, change the values of the fields and send the MQTT message again. For example, set temperature to 20 and humidity to 70. Observe how the values update in //Latest Telemetry//.
462 462  
463 -Now you can see all the Uplink messages you are simulating through the MQTT broker. The status should be **OK **if there is no errors in your integration.
464 464  
447 +[[image:telemetry-2.png]]
465 465  
466 -[[image:Screenshot 2025-03-26 at 19.49.31.png]]
467 467  
450 +Let's provision the second device named **LDS25-NB **with initial telemetry. Use the following MQTT message.
468 468  
469 469  
453 +{{code language="none"}}
454 +mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/LDS25-NB/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":11, "humidity":87}'
455 +{{/code}}
470 470  
471 -Then click on the **three dots (...)** in the **Message** column. You can see the uplink message's **payload** in the **Message** window.
457 +Now, refresh the **Devices** page, and you will see the second device**LDS25-NB**, which was recently provisioned.
472 472  
473 473  
474 -[[image:Screenshot 2025-03-26 at 19.47.52.png]]
460 +[[image:device-provision-2.png]]
475 475  
476 476  
463 += 6. Creating a Dashboard =
477 477  
478 -
479 -Now, you have successfully tested your integration with a simulated uplink payload and verified that it is received by ThingsBoard, and the device is provisioned.
480 -
481 -
482 -= 7. Creating a Dashboard =
483 -
484 484  ThingsBoard **Dashboards** provide a powerful way to visualize and monitor real-time and historical data from connected devices. They allow users to create interactive, customizable panels displaying telemetry data, device status, and other key metrics. With a variety of widgets, including charts, maps, and tables, dashboards help users gain insights, track trends, and manage IoT deployments efficiently.
485 485  
486 486  
... ... @@ -487,11 +487,6 @@
487 487  This section guides you on how to create a dashboard to display temperature and humidity data from the device on a time-series chart. You may also use other widgets in ThingsBoard to display data according to your requirements.
488 488  
489 489  
490 -First simulate a few messages using MQTT. This time, we have added the 'humidity' field to the payload. Eg:
491 -
492 -{{code language="none"}}mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "v1/devices/me/telemetry" -u "xxxxx" -P "xxxxx" -m '{"IMEI": "S31B-NB", "temperature": 22, "humidity":80}'{{/code}}
493 -
494 -
495 495  In **ThingsBoard**, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu.
496 496  
497 497  
... ... @@ -548,11 +548,11 @@
548 548  
549 549  
550 550  {{code language="none"}}
551 -mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "v1/devices/me/telemetry" -u "xxxxx" -P "xxxxx" -m '{"IMEI": "S31B-NB", "temperature": 22, "humidity":70}'
527 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "xxxxx" -P "xxxxx" -m '{"temperature":20, "humidity":70}'
552 552  
553 -mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "v1/devices/me/telemetry" -u "xxxxx" -P "xxxxx" -m '{"IMEI": "S31B-NB", "temperature": 27, "humidity":72}'
529 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "xxxxx" -P "xxxxx" -m '{"temperature":22, "humidity":71}'
554 554  
555 -mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "v1/devices/me/telemetry" -u "xxxxx" -P "xxxxx" -m '{"IMEI": "S31B-NB", "temperature": 19, "humidity":80}'
531 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S31B-NB/telemetry" -u "xxxxx" -P "xxxxx" -m '{"temperature":18, "humidity":79}'
556 556  
557 557  {{/code}}
558 558  
... ... @@ -562,10 +562,10 @@
562 562  [[image:timeseries-4.png||height="316" width="700"]]
563 563  
564 564  
565 -= 8. Configure NB-IoT Sensor =
541 += 7. Configure NB-IoT Sensor =
566 566  
567 567  
568 -Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **TS01-NB**.
544 +Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **S31B-NB**.
569 569  
570 570  First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
571 571  
... ... @@ -573,8 +573,8 @@
573 573  **AT Commands**
574 574  
575 575  * **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
576 -* **AT+SUBTOPIC=<MQTT subscribe topic> Eg: TS01-NB**
577 -* **AT+PUBTOPIC=<MQTT publish topic> Eg: TS01-NB**
552 +* **AT+SUBTOPIC=<MQTT topic>**
553 +* **AT+PUBTOPIC=<MQTT topic>**
578 578  * **AT+CLIENT=null**
579 579  * **AT+UNAME=<MQTT Username>**
580 580  * **AT+PWD=<MQTT Password>**
... ... @@ -581,15 +581,3 @@
581 581  * **AT+SERVADDR=<Broker address, Port>**
582 582  
583 583  Test your uplink by pressing the ACT button for 1 second.
584 -
585 -
586 -
587 -The following image shows the uplink payload of a real Dragino device. The publish topic is **TS01-NB**, and the device name is **861275077962896**, which is represented by the **IMEI**.
588 -
589 -{{info}}
590 -The ThingsBoard uses the device's IMEI number included in the payload to create a device in the Devices section.
591 -{{/info}}
592 -
593 -[[image:image-4.png]]
594 -
595 -
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