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Last modified by Dilisi S on 2025/04/23 19:23
From version 139.1
edited by Dilisi S
on 2025/03/09 03:35
Change comment: Uploaded new attachment "dashboard-2.png", version {1}
To version 205.1
edited by Dilisi S
on 2025/04/21 16:52
Change comment: Uploaded new attachment "add-integration-part-1.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.
... ... @@ -141,144 +141,128 @@
141 141  You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
142 142  
143 143  
144 -= 3. Data Converters =
149 +=== 2.2.2 emqx ===
145 145  
146 146  
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.
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.
148 148  
149 149  
150 -== 3.1 Uplink ==
155 +[[image:emqx.png||height="420" width="500"]]
151 151  
152 152  
153 -In the left navigation, click **Integrations center**, and then click **Data converters**.
158 +=== 2.2.3 Ins1.thingseye.io ===
154 154  
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.
155 155  
162 +If customers need to use this MQTT connection with ThingsBoard, they need to contact the TE team to obtain three license files.
156 156  
157 -[[image:data-converters-list-empty.png]]
164 +[[image:ins1.png||height="310" width="500"]]
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.
161 161  
168 += 3. Data Converters =
162 162  
163 163  
164 -[[image:create-new-converter-menu.png||height="259" width="500"]]
171 +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.
165 165  
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**.
166 166  
167 -The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
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.
176 +== 3.1 Uplink ==
170 170  
171 -{{code language="JavaScript"}}
172 -/** Decoder **/
173 173  
174 -// decode payload to string
175 -var payloadStr = decodeToString(payload);
176 -var data = JSON.parse(payloadStr);
179 +In the left navigation, click **Integrations center**, and then click **Data converters**.
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 = {
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 -};
182 +[[image:data-converters-list-empty.png]]
194 194  
195 -/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
196 196  
197 -return result;
198 -{{/code}}
185 +On the **Data converters** page, click on the ‘**+**’ button, and then click on **Create new converter** from the dropdown menu.
199 199  
200 200  
201 -Click on the **Add** button.
202 202  
189 +[[image:create-new-converter-menu.png||height="259" width="500"]]
203 203  
204 204  
205 -[[image:add-uplink-data-converter.png||height="529" width="500"]]
192 +The **Add data converter** window appears.
206 206  
194 +Name it ‘**MQTT Uplink Converter**’ and select the Type as **Uplink**.
207 207  
208 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
196 +Click on the **TBEL** button if it has not been selected by default.
209 209  
210 -[[image:data-converter-list-showing-uplink-dc.png]]
198 +Replace the default TBEL decoder function with the following universal TBEL decoder function, which decodes MQTT payload from any Dragino NB-IoT device.
211 211  
212 212  
213 -
214 -== 3.2 Downlink ==
215 -
216 -
217 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
218 -
219 -
220 -[[image:create-new-converter-menu.png||width="500"]]
221 -
222 -
223 -
224 -The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
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 -
228 -
229 229  {{code language="JavaScript"}}
230 -// Encode downlink data from incoming Rule Engine message
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 -
237 -/** Encoder **/
238 -
239 -var data = {};
240 -
241 -// Process data from incoming message and metadata
242 -
243 -data.tempFreq = msg.temperatureUploadFrequency;
244 -data.humFreq = msg.humidityUploadFrequency;
245 -
246 -data.devSerialNumber = metadata['ss_serialNumber'];
247 -
248 -// Result object with encoded downlink payload
249 -var result = {
250 -
251 - // downlink data content type: JSON, TEXT or BINARY (base64 format)
252 - contentType: "JSON",
253 -
254 - // downlink data
255 - data: JSON.stringify(data),
256 -
257 - // Optional metadata object presented in key/value format
258 - metadata: {
259 - topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
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();
260 260   }
261 -
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 = {
243 + deviceName: deviceName,
244 + deviceType: modelname,
245 + attributes: {
246 + model: modelname
247 + //customerName: "NB-CB",
248 + //groupName: "NB-CB",
249 + //integrationName: metadata['integrationName']
250 + },
251 + telemetry: listdata
262 262  };
263 -
264 264  return result;
265 265  {{/code}}
266 266  
267 267  
268 -Click on the **Add** button.
257 +Once you modify the decoder function, click on the **Add** button.
269 269  
270 270  
260 +[[image:mqtt-uplink-converter.png||height="498" width="500"]]
271 271  
272 -[[image:add-downlink-data-converter.png||height="529" width="500"]]
273 273  
274 274  
275 -You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
264 +You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
276 276  
277 277  
267 +
278 278  [[image:data-converters-list.png]]
279 279  
280 280  
281 -
282 282  = 4. Add Integration =
283 283  
284 284  
... ... @@ -299,17 +299,18 @@
299 299  **Basic settings:**
300 300  
301 301  * **Integration type**: MQTT
302 -* **Name**: MQTT integration NB/CB
291 +* **Name**: MQTT integration - Device A
303 303  * **Enable integration**: YES
304 -* **Allows create devices or assets**: YES
293 +* **Allow create devices or assets**: YES
305 305  
306 306  Click **Next** button.
307 307  
308 308  
298 +[[image:add-integration-basic-settings.png||height="504" width="500"]]
309 309  
310 -[[image:add-integration-basic-settings.png||height="511" width="500"]]
311 311  
312 312  
302 +
313 313  **Uplink data converter:**
314 314  
315 315  * Click on the **Select existing** button.
... ... @@ -318,40 +318,41 @@
318 318  Click **Next** button.
319 319  
320 320  
311 +[[image:add-integration-ul-data-converter.png||height="505" width="500"]]
321 321  
322 -[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
323 323  
324 324  
325 325  **Downlink data converter:**
326 326  
327 -* Click on the **Select existing** button.
328 -* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
317 +Dragino NB/CB devices don't require a downlink data converter to decode their payloads, so you can skip this step.
329 329  
330 -Click **Next** button.
319 +* Click on the **Skip **button in the Downlink data converter section.
331 331  
321 +Click **Skip** button.
332 332  
333 333  
334 -[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
324 +[[image:integration-dl-skip.png||height="511" width="500"]]
335 335  
336 336  
327 +
337 337  **Connection:**
338 338  
339 -* **Host**: Cluster URL (Eg. 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud)
330 +* **Host**: Host URL (Eg. **//011731f7xxxxxxxxxxxfbbedfc63f4.s1.eu.hivemq.cloud//**)
340 340  * **Port**: 8883
341 -* **Credentials**: Basic
342 -* **Enable SSL**: YES
332 +* **Credentials type**: Basic
343 343  * **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
344 344  * **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)
335 +* **Enable SSL**: YES
336 +* **Topic: device/a** (The topic can be anything; you can even use just the device name.)
346 346  * **QoS:** 0-At most once
347 347  
348 -[[image:add-integration-connection.png||height="511" width="500"]]
339 +[[image:add-integartion-connection.png||height="505" width="500"]]
349 349  
350 350  
351 351  Click on the **Advanced settings** button.
352 352  
353 -* **Clean session:** NO
354 -* **Retained**: NO
344 +* **Clean session:** YES
345 +* **Retained**: YES
355 355  
356 356  [[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
357 357  
... ... @@ -375,8 +375,8 @@
375 375  Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
376 376  
377 377  
369 +[[image:integration-added.png]]
378 378  
379 -[[image:new-integration-pending.png]]
380 380  
381 381  
382 382  = 5. Verifying the receipt of data from virtual devices =
... ... @@ -384,38 +384,195 @@
384 384  
385 385  == 5.1 How does it work? ==
386 386  
378 +
387 387  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.
388 388  
389 -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.
381 +The Mosquitto client publishes messages (payloads) on the topic **/device/a**. Of course, you can use any topic for testing.
390 390  
391 -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.
383 +(% id="cke_bm_37386S" style="display:none" %) (%%)The MQTT payload format is as follows:
392 392  
385 +{{code language="none"}}
386 +{"IMEI": "350693903995577", "temperature":25, "humidity":80, "pressure":1005}
387 +{{/code}}
393 393  
394 -**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.**
389 +Once ThingsBoard receives this message, it forwards this payload to the matching device through the integration.
395 395  
396 396  
397 -For example, if you send two MQTT messages with different device names in the topic:
392 +== 5.2 Sending messages ==
398 398  
399 -1. v1/devices/**S31B-NB**/telemetry
400 -1. v1/devices/**S31B-CB**/telemetry
401 401  
402 -ThingsBoard will create two devices named **S31B-NB** and **S31B-CB** in the **//Devices//** section.
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.
403 403  
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}}
404 404  
405 -The MQTT payload format is as follows, for example:
401 +If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
406 406  
403 +
404 +[[image:integration-active.png]]
405 +
406 +
407 +== 5.3 Viewing messages ==
408 +
409 +
410 +Go back to the **Integrations** page.
411 +
412 +Click on the **MQTT integration NB/CB** in the **Integrations** page to see its details.
413 +
414 +Click on the **Edit** button (//**pen icon**//).
415 +
416 +Click on the **Disabled** button in the upper-right corner.
417 +
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.
419 +
420 +Click on the **Apply** button.
421 +
422 +Then click on the **Apply changes** (//**tick icon**//) button.
423 +
424 +
425 +[[image:debug-enabled.png||height="301" width="700"]]
426 +
427 +
428 +
429 +
430 +Now go to the **Events** tab.
431 +
432 +Select the **Event type** as **Debug** from the dropdown list.
433 +
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:
435 +
407 407  {{code language="none"}}
408 -{"temperature":10.4, "humidity":85}
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}'
409 409  {{/code}}
410 410  
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.
411 411  
412 -== 5.2 Sending messages ==
413 413  
443 +[[image:Screenshot 2025-03-26 at 19.49.31.png]]
414 414  
415 -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.
416 416  
446 +
447 +Then click on the **three dots (...)** in the **Message** column. You can see the uplink message's **payload** in the **Message** window.
448 +
449 +
450 +[[image:Screenshot 2025-03-26 at 19.47.52.png]]
451 +
452 +
453 +
454 +
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.
456 +
457 +
458 += 6. Creating a Dashboard =
459 +
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.
461 +
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 +
479 +Click on the **Add** button.
480 +
481 +
482 +[[image:dashboard-2.png||height="526" width="500"]]
483 +
484 +
485 +Click on the **Add widget / Add new widget** button.
486 +
487 +
488 +[[image:dashboard-3.png]]
489 +
490 +
491 +In the **Select widgets bundle** window, click **Charts**.
492 +
493 +
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 +
417 417  {{code language="none"}}
418 -mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/SN-001/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":10.4, "humidity":85}'
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}'
419 419  {{/code}}
420 420  
421 -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.
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569 +[[image:image-4.png]]
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