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Last modified by Dilisi S on 2025/04/23 19:23
From version 129.1
edited by Dilisi S
on 2025/03/08 22:02
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To version 206.1
edited by Dilisi S
on 2025/04/21 16:53
Change comment: Uploaded new attachment "add-integration-part-2.png", version {1}

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... ... @@ -22,7 +22,10 @@
22 22  To complete this tutorial, you need to have the following:
23 23  
24 24  * ThingsBoard cloud account
25 -* HiveMQ 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.
26 26  
27 27  == 2.1 ThingsBoard Cloud ==
28 28  
... ... @@ -66,7 +66,9 @@
66 66  
67 67  == 2.2 HiveMQ Cloud ==
68 68  
72 +=== 2.2.1 HiveMQ Cloud ===
69 69  
74 +
70 70  Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
71 71  
72 72  Click on the **Start Free** button.
... ... @@ -141,12 +141,33 @@
141 141  You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
142 142  
143 143  
149 +=== 2.2.2 emqx ===
150 +
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.
153 +
154 +
155 +[[image:emqx.png||height="420" width="500"]]
156 +
157 +
158 +=== 2.2.3 Ins1.thingseye.io ===
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 +
162 +If customers need to use this MQTT connection with ThingsBoard, they need to contact the TE team to obtain three license files.
163 +
164 +[[image:ins1.png||height="310" width="500"]]
165 +
166 +
167 +
144 144  = 3. Data Converters =
145 145  
146 146  
147 147  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.
148 148  
173 +**In this section, you will create a universal uplink data converter for all Dragino NB-IoT devices. The uplink decoder converts any MQTT message coming from a device into key-value pairs that can be used to display and visualize data using various widgets on the dashboard**.
149 149  
175 +
150 150  == 3.1 Uplink ==
151 151  
152 152  
... ... @@ -153,11 +153,10 @@
153 153  In the left navigation, click **Integrations center**, and then click **Data converters**.
154 154  
155 155  
156 -
157 157  [[image:data-converters-list-empty.png]]
158 158  
159 159  
160 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
185 +On the **Data converters** page, click on the ‘**+**’ button, and then click on **Create new converter** from the dropdown menu.
161 161  
162 162  
163 163  
... ... @@ -164,228 +164,381 @@
164 164  [[image:create-new-converter-menu.png||height="259" width="500"]]
165 165  
166 166  
167 -The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
192 +The **Add data converter** window appears.
168 168  
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.
194 +Name it ‘**MQTT Uplink Converter**’ and select the Type as **Uplink**.
170 170  
171 -{{code language="JavaScript"}}
172 -/** Decoder **/
196 +Click on the **TBEL** button if it has not been selected by default.
173 173  
174 -// decode payload to string
175 -var payloadStr = decodeToString(payload);
176 -var data = JSON.parse(payloadStr);
198 +Replace the default TBEL decoder function with the following universal TBEL decoder function, which decodes MQTT payload from any Dragino NB-IoT device.
177 177  
178 -var deviceName = metadata.topic.split("/")[3];
179 -// decode payload to JSON
180 -var deviceType = 'sensor';
181 181  
182 -// Result object with device attributes/telemetry data
183 -var result = {
201 +{{code language="JavaScript"}}
202 +// decode payload to JSON
203 +var pattern = "yyyy/MM/dd HH:mm:ss";
204 +var objdata = {};
205 +var obj1 = {};
206 +var data = decodeToJson(payload);
207 +var deviceName = data.IMEI;
208 +data.remove("IMEI");
209 +var modelname = "Dragino "+ data.Model;
210 +//var mod = data.mod
211 +data.remove("Model");
212 +//delete data.mod
213 +var timestamp = new Date().getTime();
214 +foreach (entry: data.entrySet()) {
215 + var key = entry.getKey();
216 + var value = entry.getValue();
217 + //objdata[key] = data[key]
218 + if(key.matches("^-?\\d+$")){ //is number
219 + obj1[key]=data[key];
220 + var index = obj1[key].length-1;
221 + obj1[key][index]=new Date(obj1[key][index],pattern).getTime();
222 + }
223 + else if (key==="bat"||key==="BAT"){
224 + objdata["battery"] = data[key];
225 + }
226 + else{
227 + objdata[key] = data[key];
228 +}}
229 +var listdata = [{"ts":timestamp,"values":objdata}];
230 +foreach ( entry1: obj1.entrySet()){
231 + var key1 = entry1.getKey();
232 + var value1 = entry1.getValue();
233 + var index = obj1[key1].length-1;
234 + var ts = obj1[key1][index];
235 + if (modelname=="Dragino RS485-NB"){
236 + listdata.push({"ts":ts,"values":{"Payload":obj1[key1][0]}});
237 + }
238 + else{
239 + listdata.push({"ts":ts,"values":{"values":obj1[key1]}});
240 + }
241 +}
242 + var result = {
184 184   deviceName: deviceName,
185 - deviceType: deviceType,
244 + deviceType: modelname,
186 186   attributes: {
187 - integrationName: metadata['integrationName'],
246 + model: modelname
247 + //customerName: "NB-CB",
248 + //groupName: "NB-CB",
249 + //integrationName: metadata['integrationName']
188 188   },
189 - telemetry: {
190 - temperature: data.temperature,
191 - humidity: data.humidity,
192 - }
251 + telemetry: listdata
193 193  };
194 -
195 -/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
196 -
197 197  return result;
198 198  {{/code}}
199 199  
200 200  
201 -Click on the **Add** button.
257 +Once you modify the decoder function, click on the **Add** button.
202 202  
203 203  
260 +[[image:mqtt-uplink-converter.png||height="498" width="500"]]
204 204  
205 -[[image:add-uplink-data-converter.png||height="529" width="500"]]
206 206  
207 207  
208 208  You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
209 209  
210 -[[image:data-converter-list-showing-uplink-dc.png]]
211 211  
212 212  
268 +[[image:data-converters-list.png]]
213 213  
214 -== 3.2 Downlink ==
215 215  
271 += 4. Add Integration =
216 216  
217 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
218 218  
274 +In the left navigation, click **Integrations center**, and then click **Integrations**.
219 219  
220 -[[image:create-new-converter-menu.png||width="500"]]
221 221  
277 +[[image:integrations-list-empty.png]]
222 222  
223 223  
224 -The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
280 +On the **Integrations** page, click on the '**+**' button.
225 225  
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.
227 227  
283 +The **Add integration** window appears.
228 228  
229 -{{code language="JavaScript"}}
230 -// Encode downlink data from incoming Rule Engine message
285 +In the **Add integration** window, configure the following settings:
231 231  
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
236 236  
237 -/** Encoder **/
288 +**Basic settings:**
238 238  
239 -var data = {};
290 +* **Integration type**: MQTT
291 +* **Name**: MQTT integration - Device A
292 +* **Enable integration**: YES
293 +* **Allow create devices or assets**: YES
240 240  
241 -// Process data from incoming message and metadata
295 +Click **Next** button.
242 242  
243 -data.tempFreq = msg.temperatureUploadFrequency;
244 -data.humFreq = msg.humidityUploadFrequency;
245 245  
246 -data.devSerialNumber = metadata['ss_serialNumber'];
298 +[[image:add-integration-basic-settings.png||height="504" width="500"]]
247 247  
248 -// Result object with encoded downlink payload
249 -var result = {
250 250  
251 - // downlink data content type: JSON, TEXT or BINARY (base64 format)
252 - contentType: "JSON",
253 253  
254 - // downlink data
255 - data: JSON.stringify(data),
256 256  
257 - // Optional metadata object presented in key/value format
258 - metadata: {
259 - topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
260 - }
303 +**Uplink data converter:**
261 261  
262 -};
305 +* Click on the **Select existing** button.
306 +* **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
263 263  
264 -return result;
265 -{{/code}}
308 +Click **Next** button.
266 266  
267 267  
311 +[[image:add-integration-ul-data-converter.png||height="505" width="500"]]
312 +
313 +
314 +
315 +**Downlink data converter:**
316 +
317 +Dragino NB/CB devices don't require a downlink data converter to decode their payloads, so you can skip this step.
318 +
319 +* Click on the **Skip **button in the Downlink data converter section.
320 +
321 +Click **Skip** button.
322 +
323 +
324 +[[image:integration-dl-skip.png||height="511" width="500"]]
325 +
326 +
327 +
328 +**Connection:**
329 +
330 +* **Host**: Host URL (Eg. **//011731f7xxxxxxxxxxxfbbedfc63f4.s1.eu.hivemq.cloud//**)
331 +* **Port**: 8883
332 +* **Credentials type**: Basic
333 +* **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
334 +* **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
335 +* **Enable SSL**: YES
336 +* **Topic: device/a** (The topic can be anything; you can even use just the device name.)
337 +* **QoS:** 0-At most once
338 +
339 +[[image:add-integartion-connection.png||height="505" width="500"]]
340 +
341 +
342 +Click on the **Advanced settings** button.
343 +
344 +* **Clean session:** YES
345 +* **Retained**: YES
346 +
347 +[[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
348 +
349 +
350 +Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
351 +
352 +
353 +[[image:check-connection.png||height="83" width="300"]]
354 +
355 +
356 +If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
357 +
358 +
359 +[[image:connection-success.png||height="511" width="500"]]
360 +
361 +
268 268  Click on the **Add** button.
269 269  
364 +You should see that the newly added integration is listed on the **Integrations** page.
270 270  
366 +Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
271 271  
272 -[[image:add-downlink-data-converter.png||height="529" width="500"]]
273 273  
369 +[[image:integration-added.png]]
274 274  
275 -You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
276 276  
277 277  
278 -[[image:data-converters-list.png]]
373 += 5. Verifying the receipt of data from virtual devices =
279 279  
280 280  
376 +== 5.1 How does it work? ==
281 281  
282 -= 4. Add Integration =
283 283  
379 +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.
284 284  
285 -In the left navigation, click **Integrations center**, and then click **Integrations**.
381 +The Mosquitto client publishes messages (payloads) on the topic **/device/a**. Of course, you can use any topic for testing.
286 286  
383 +(% id="cke_bm_37386S" style="display:none" %) (%%)The MQTT payload format is as follows:
287 287  
288 -[[image:integrations-list-empty.png]]
385 +{{code language="none"}}
386 +{"IMEI": "350693903995577", "temperature":25, "humidity":80, "pressure":1005}
387 +{{/code}}
289 289  
389 +Once ThingsBoard receives this message, it forwards this payload to the matching device through the integration.
290 290  
291 -On the **Integrations** page, click on the '**+**' button.
292 292  
392 +== 5.2 Sending messages ==
293 293  
294 -The **Add integration** window appears.
295 295  
296 -In the **Add integration** window, configure the following settings:
395 +On your computer's terminal, issue the following MQTT command which simulates the device '**Device A'**. The message payload contains the fields IMEI, temperature, humidity, and pressure, which hold the values 350693903995577, 30, 80, and 1005 respectively. This payload is also (technically) known as telemetry.
297 297  
397 +{{code language="none"}}
398 +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}'
399 +{{/code}}
298 298  
299 -**Basic settings:**
401 +If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
300 300  
301 -* **Integration type**: MQTT
302 -* **Name**: MQTT integration NB/CB
303 -* **Enable integration**: YES
304 -* **Allows create devices or assets**: YES
305 305  
306 -Click **Next** button.
404 +[[image:integration-active.png]]
307 307  
308 308  
407 +== 5.3 Viewing messages ==
309 309  
310 -[[image:add-integration-basic-settings.png||height="511" width="500"]]
311 311  
410 +Go back to the **Integrations** page.
312 312  
313 -**Uplink data converter:**
412 +Click on the **MQTT integration NB/CB** in the **Integrations** page to see its details.
314 314  
315 -* Click on the **Select existing** button.
316 -* **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
414 +Click on the **Edit** button (//**pen icon**//).
317 317  
318 -Click **Next** button.
416 +Click on the **Disabled** button in the upper-right corner.
319 319  
418 +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.
320 320  
420 +Click on the **Apply** button.
321 321  
322 -[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
422 +Then click on the **Apply changes** (//**tick icon**//) button.
323 323  
324 324  
325 -**Downlink data converter:**
425 +[[image:debug-enabled.png||height="301" width="700"]]
326 326  
327 -* Click on the **Select existing** button.
328 -* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
329 329  
330 -Click **Next** button.
331 331  
332 332  
430 +Now go to the **Events** tab.
333 333  
334 -[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
432 +Select the **Event type** as **Debug** from the dropdown list.
335 335  
434 +Publish another message (of course, you can repeat the previous message by pressing the UP arrow on your keyboard and then press Enter key) to your MQTT broker from your terminal, for example:
336 336  
337 -**Connection:**
436 +{{code language="none"}}
437 +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}'
438 +{{/code}}
338 338  
339 -* **Host**: Cluster URL (Eg. 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud)
340 -* **Port**: 8883
341 -* **Credentials**: Basic
342 -* **Enable SSL**: YES
343 -* **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
344 -* **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
345 -* **Topic:** tb/mqtt-integration-tutorial/sensors/+/telemetry (the + replaces any 'device name' and creates devices in the Entities -> Devices)
346 -* **QoS:** 0-At most once
440 +Now you can see that uplink message in the **Events** tab (Click the **refresh** button if you didn't see any messages in the Events tab). The status should be **OK **if there is no errors in your integration.
347 347  
348 -[[image:add-integration-connection.png||height="511" width="500"]]
349 349  
443 +[[image:Screenshot 2025-03-26 at 19.49.31.png]]
350 350  
351 -Click on the **Advanced settings** button.
352 352  
353 -* **Clean session:** NO
354 -* **Retained**: NO
355 355  
356 -[[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
447 +Then click on the **three dots (...)** in the **Message** column. You can see the uplink message's **payload** in the **Message** window.
357 357  
358 358  
359 -Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
450 +[[image:Screenshot 2025-03-26 at 19.47.52.png]]
360 360  
361 361  
362 -[[image:check-connection.png||height="83" width="300"]]
363 363  
364 364  
365 -If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
455 +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.
366 366  
367 367  
368 -[[image:connection-success.png||height="511" width="500"]]
458 += 6. Creating a Dashboard =
369 369  
460 +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.
370 370  
462 +
463 +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.
464 +
465 +
466 +First simulate a few messages using MQTT. This time, we have added the 'humidity' field to the payload. Eg:
467 +
468 +{{code language="none"}}mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -u "xxxxx" -P "xxxxx" -t "device/a" -m '{"IMEI":"350693903995577", "temperature":22, "humidity":80, "pressure":1005}'{{/code}}
469 +
470 +
471 +In **ThingsBoard**, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu.
472 +
473 +
474 +[[image:dashboard-1.png]]
475 +
476 +
477 +In the **Title** text box, enter **NB/CB Test Dashboard** as the title of the dashboard.
478 +
371 371  Click on the **Add** button.
372 372  
373 -You should see that the newly added integration is listed on the **Integrations** page.
374 374  
375 -Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
482 +[[image:dashboard-2.png||height="526" width="500"]]
376 376  
377 377  
485 +Click on the **Add widget / Add new widget** button.
378 378  
379 -[[image:new-integration-pending.png]]
380 380  
488 +[[image:dashboard-3.png]]
381 381  
382 -= 5. Verifying the receipt of data from the device =
383 383  
491 +In the **Select widgets bundle** window, click **Charts**.
384 384  
385 -On the terminal, issue the following MQTT command which simulates the device S31B-NB.
386 386  
494 +[[image:dashboard-4.png||height="537" width="700"]]
495 +
496 +
497 +
498 +In the **Charts: select widget** window, click **Time series chart**.
499 +
500 +
501 +[[image:dashboard-5.png||height="525" width="700"]]
502 +
503 +
504 +Configure the **Time series chart** widget as follows:
505 +
506 +* **Datasource** - select **Device A** device you provisioned.
507 +* **Series**:
508 +** **temperature** - you can see this key by default.
509 +** **humidity** - Click **Add series** button. Then add the **humidity** for the key and then type **%** as its unit.
510 +* Click on the **Add** button.
511 +
512 +{{info}}
513 +You can add only the relevant fields from the device's payload to display data on a widget. These fields are called 'keys'.
514 +{{/info}}
515 +
516 +[[image:Screenshot 2025-03-31 at 06.51.15.png||height="485" width="700"]]
517 +
518 +
519 +The time-series chart will appear in edit mode. Resize it by clicking and dragging the lower-right corner.
520 +
521 +Click the **Save** button to add the widget to the dashboard.
522 +
523 +
524 +[[image:timeseries-3.png||height="347" width="700"]]
525 +
526 +
527 +Now send the following MQTT messages from the terminal to simulate the data.
528 +
529 +
387 387  {{code language="none"}}
388 -mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/S31B-NB/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:20}"
531 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -u "xxxxx" -P "xxxxx" -t "device/a" -m '{"IMEI":"350693903995577", "temperature":22, "humidity":70, "pressure":1005}'
532 +
533 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -u "xxxxx" -P "xxxxx" -t "device/a" -m '{"IMEI":"350693903995577", "temperature":27, "humidity":72, "pressure":1005}'
534 +
535 +mosquitto_pub -d -q 1 -h 011731f7928xxxxx.s1.eu.hivemq.cloud -p 8883 -u "xxxxx" -P "xxxxx" -t "device/a" -m '{"IMEI":"350693903995577", "temperature":19, "humidity":80, "pressure":1005}'
389 389  {{/code}}
390 390  
391 -If the integration was performed without errors, after the transmission of the first telemetry, a new device with the name “S31B-NB” will appear in the Devices → All. Also, you can verify the input and output data, respectively, before and after conversion in Data converters → UDP Uplink Converter NB/CB → Events.
538 +The chart will update with the values in realtime, as shown in the below image.
539 +
540 +
541 +[[image:timeseries-4.png||height="316" width="700"]]
542 +
543 +
544 += 8. Configure Physical NB-IoT Sensor =
545 +
546 +
547 +Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **TS01-NB**.
548 +
549 +First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
550 +
551 +
552 +**AT Commands**
553 +
554 +* **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
555 +* **AT+SUBTOPIC=<MQTT subscribe topic> Eg: TS01-NB**
556 +* **AT+PUBTOPIC=<MQTT publish topic> Eg: TS01-NB**
557 +* **AT+CLIENT=null**
558 +* **AT+UNAME=<MQTT Username>**
559 +* **AT+PWD=<MQTT Password>**
560 +* **AT+SERVADDR=<Broker address, Port>**
561 +
562 +Test your uplink by pressing the ACT button for 1 second.
563 +
564 +
565 +
566 +The following image shows the uplink payload of a real Dragino device. The publish topic is '**TS01-NB' that contains fields in the payload, IMEI, IMSI, Model, temperature, etc**. Note that we have created a device named **TS01-NB** in the **Devices** section in advance.
567 +
568 +
569 +[[image:image-4.png]]
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