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Last modified by Dilisi S on 2025/04/23 19:23
From version 175.1
edited by Dilisi S
on 2025/03/20 16:51
Change comment: Mar 20 edits - part 2
To version 91.1
edited by Dilisi S
on 2025/03/08 03:54
Change comment: Uploaded new attachment "add-downlink-data-converter.png", version {1}

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... ... @@ -17,153 +17,76 @@
17 17  The **NB series** devices end with the suffix **-NB**, and the **CB series** devices end with the suffix **-CB**. For example, **S31B-NB** is an **NB device**, and **S31-CB** is a **CB device**.
18 18  
19 19  
20 -= 2. Prerequisites =
20 += 2. Add New Device =
21 21  
22 -To complete this tutorial, you need to have the following:
23 23  
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.
23 +First, we will add a device to simulate data using MQTT. This device does not represent a real physical device but serves as a common virtual device for all Dragino NB/CB devices.
29 29  
30 -== 2.1 ThingsBoard Cloud ==
25 +In the left navigation, click **Entities** and then click **Devices**.
31 31  
27 +[[image:device-list-empty.png]]
32 32  
33 -Go to [[https:~~/~~/thingsboard.io/>>https://thingsboard.io/]]
34 34  
35 -Click on the **Try it now**.
30 +On the **Devices **page, click on the ‘**+**’ button, and then click on the **Add new device **from the dropdown menu.
36 36  
32 +[[image:ThingsBoard-add-new-device.png||height="279" width="500"]]
37 37  
38 -[[image:thingsboard-1.png]]
39 39  
35 +The **Add new device** window appears. Name the device, for example '**Virtual NB/CB device**'.
40 40  
41 -Select either the **North America** or **Europe** region. Here, we use the Europe region.
37 +Click on the **Next: Credentials** button.
42 42  
43 -[[image:thingsboard-2.png]]
39 +[[image:new-device-device-details.png||height="529" width="500"]]
44 44  
45 45  
46 -You can sign up with your **Google**, **GitHub**, **Facebook**, or **Apple** account. If not you can create an account with providing your **name**, **email address** and a **password**.
42 +Click the **Access token** button if it is not selected by default.
47 47  
48 -Click on the **Sign up** button.
44 +Copy the **Access token** to a text editor, as you will need it in the section **'Sending data from an MQTT client'**.
49 49  
50 -[[image:thingsboard-3.png||height="651" width="500"]]
46 +Click on the **Add** button.
51 51  
48 +[[image:new-device-access-token.png||height="528" width="500"]]
52 52  
53 -You will be navigated to the following page.
54 54  
55 -[[image:thingsboard-5.png||height="109" width="500"]]
51 +Click on the **MQTT** button.
56 56  
53 +Then, select the operating system you are going to use with the **Mosquitto MQTT Broker**. This example shows sending a command from a computer running **MacOS**. First, install the necessary client tools on your computer.
57 57  
58 -simultaneously, you will receive an email to confirm your email address. Click on the **Activate Your Account** button.
55 +Copy the MQTT pub command in the '**Execute the following command**' section.
59 59  
57 +{{code language="none"}}
58 +mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/me/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:25}"
59 +{{/code}}
60 60  
61 -[[image:thingsboard-4.png||height="249" width="500"]]
61 +Note that the **State** is still shown as **'Inactive'** in the **Latest telemetry** section.
62 62  
63 +[[image:new-device-check-connectivity.png||height="522" width="500"]]
63 63  
64 -Now losing to the account using your credentials:
65 65  
66 +On the terminal, enter the command you copied. This command sends the MQTT payload **{temperature:25}** as telemetry data from a virtual device named **'me'**. Of course, you can replace **'me'** with a device name or use the wildcard character **'+'** to match any device name.
66 66  
67 -[[image:thingsboard-6.png||height="244" width="500"]]
68 68  
69 +[[image:mqtt-command-1.png||height="228" width="700"]]
69 69  
70 -== 2.2 HiveMQ Cloud ==
71 71  
72 -=== 2.2.1 HiveMQ Cloud ===
72 +If the command is successful, you can see the telemetry data you sent under the **Latest telemetry** section. Note that the **State** is now **'Active'** in the **Latest telemetry** section.
73 73  
74 74  
75 -Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
75 +[[image:new-device-telemetry-test.png||height="520" width="500"]]
76 76  
77 -Click on the **Start Free** button.
78 78  
79 -[[image:hivwmq-1.png]]
78 +Send the same command again, only changing the **temperature** value, to see how the **Latest telemetry** section updates its data.
80 80  
80 +Once you are done experimenting with this, close the window by clicking the **Close** button.
81 81  
82 -Click on the **Sign Up FREE Now** button in the **HIVEMQ CLOUD** section.
83 83  
84 -[[image:hivemq-2.png]]
83 +[[image:mqtt-command-2.png||height="227" width="700"]]
85 85  
86 86  
87 -Click on the **Sign Up** button.
88 88  
89 -You can sign up with HiveMQ using your **GitHub**, **Google**, or **LinkedIn** account.
87 +[[image:virtual-device-active.png]]
90 90  
91 -If not, provide your **email address** and a **password** to create an account by clicking on the **Sign Up** button.
92 92  
93 -
94 -[[image:hivemq-3.png]]
95 -
96 -
97 -You will receive an email to verify your email address. Click on the **Confirm my account** button.
98 -
99 -
100 -[[image:hivemq-4.jpg||height="889" width="400"]]
101 -
102 -
103 -You will be redirected to a page asking you to complete your profile. Once done, click the **Continue** button.
104 -
105 -
106 -[[image:hivemq-5.png||height="655" width="700"]]
107 -
108 -
109 -Select the CloudMQ Cloud plan you need. For testing purposes, select the **Serverless FREE** plan by clicking on the **Create Serverless Cluster** button.
110 -
111 -
112 -[[image:hivemq-6.png]]
113 -
114 -
115 -You will be navigated to the **Your Clusters** page. Click on the **Manage Cluster** button.
116 -
117 -[[image:hivemq-7.png]]
118 -
119 -
120 -In your cluster page, you can find some useful parameters you need to create a MQTT connection.
121 -
122 -**URL**: This is the host name. Click on the copy button to copy it.
123 -
124 -**Port**: 8883
125 -
126 -
127 -Click on the **Getting Started** tab to setup the username and the password as the connection credentials.
128 -
129 -
130 -[[image:hivemq-8.png]]
131 -
132 -
133 -In the '**Create Connection Credentials**' section, provide a **username** and **password**, then click the **Add** button.
134 -
135 -
136 -[[image:hivemq-9.png]]
137 -
138 -
139 -
140 -If everything is successful, you will see the following message.
141 -
142 -
143 -[[image:hivemq-10.png||height="206" width="500"]]
144 -
145 -
146 -You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
147 -
148 -
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 -
167 167  = 3. Data Converters =
168 168  
169 169  
... ... @@ -175,27 +175,18 @@
175 175  
176 176  In the left navigation, click **Integrations center**, and then click **Data converters**.
177 177  
101 +[[image:data-converter-list-page.png]]
178 178  
179 -[[image:data-converters-list-empty.png]]
180 180  
104 +On the **Data converters** page, click on the ‘+’ button, and then click on the **Create new converter** from the dropdown menu.
181 181  
182 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
106 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
183 183  
184 184  
185 -
186 -[[image:create-new-converter-menu.png||height="259" width="500"]]
187 -
188 -
189 189  The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
190 190  
191 -Click on the **JavaScript** button.
111 +Click on the **JavaScript** button. Now copy and paste the following JavaScript to the **Decoder function** section. This decoder function is valid for both NB and CB series devices.
192 192  
193 -Delete the default decoder function in the code editor. Now copy and paste the following decoder function written in **JavaScript** in to the **code editor**. This decoder function is compatible for both NB and CB series devices.
194 -
195 -{{info}}
196 -Please note that the value assigned to the IMEI field in the payload will be used by ThingsBoard to create a device on the platform with the same name.
197 -{{/info}}
198 -
199 199  {{code language="JavaScript"}}
200 200  //Version: 0.1
201 201  // decode payload to string
... ... @@ -316,314 +316,156 @@
316 316  }
317 317  
318 318  return result;
233 +
319 319  {{/code}}
320 320  
321 321  
322 322  Click on the **Add** button.
323 323  
239 +[[image:uplink-data-converter.png||height="529" width="500"]]
324 324  
325 -[[image:mqtt-uplink.png||width="500"]]
326 326  
242 +You should see that the newly added **uplink data converter** is listed on the **Data Converters** page.
327 327  
328 -
329 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
330 -
331 -
332 332  [[image:data-converter-list-showing-uplink-dc.png]]
333 333  
334 334  
335 -= 4. Add Integration =
247 +== 3.2 Downlink ==
336 336  
337 337  
338 -In the left navigation, click **Integrations center**, and then click **Integrations**.
250 +On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
339 339  
252 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
340 340  
341 -[[image:integrations-list-empty.png]]
342 342  
255 +The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
343 343  
344 -On the **Integrations** page, click on the '**+**' button.
257 +Click on the **JavaScript** button. Now copy and paste the following JavaScript to the **Encoder function **section. This encoder function is valid for both NB and CB series devices.
345 345  
346 346  
347 -The **Add integration** window appears.
260 +{{code language="JavaScript"}}
261 +function hexToBase64(hexString) {
262 + // 将16进制字符串两个字符转换为一个字节
263 + var bytes = hexString.match(/.{2}/g);
264 + // 对每个字节进行解析，并转换为对应的字符
265 + var binaryString = bytes.map(function(byte) {
266 + return String.fromCharCode(parseInt(byte, 16));
267 + }).join('');
268 +
269 + // 使用btoa进行base64编码
270 + return btoa(binaryString);
271 +}
348 348  
349 -In the **Add integration** window, configure the following settings:
273 +// Result object with encoded downlink payload
274 +var result = {
275 + // downlink data content type: JSON, TEXT or BINARY (base64 format)
276 + contentType: "BINARY",
350 350  
278 + // downlink data
279 + data:hexToBase64(metadata.shared_value)
351 351  
352 -**Basic settings:**
281 + // Optional metadata object presented in key/value format
282 + //metadata: {}
353 353  
354 -* **Integration type**: MQTT
355 -* **Name**: MQTT integration NB/CB
356 -* **Enable integration**: YES
357 -* **Allows create devices or assets**: YES
284 +};
358 358  
359 -Click **Next** button.
286 +return result;
287 +{{/code}}
360 360  
361 361  
362 -[[image:add-integration-basic-settings.png||height="511" width="500"]]
363 -
364 -
365 -**Uplink data converter:**
366 -
367 -* Click on the **Select existing** button.
368 -* **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
369 -
370 -Click **Next** button.
371 -
372 -
373 -[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
374 -
375 -
376 -**Downlink data converter:**
377 -
378 -Dragino NB/CB devices don't require a downlink data converter to decode their payloads, so you can skip this step.
379 -
380 -* Click on the **Skip **button in the Downlink data converter section.
381 -
382 -Click **Skip** button.
383 -
384 -
385 -[[image:integration-dl-skip.png||height="511" width="500"]]
386 -
387 -
388 -
389 -**Connection:**
390 -
391 -* **Host**: Cluster URL (Eg. 011731f7xxxxxxxxxxxfbbedfc63f4.s1.eu.hivemq.cloud)
392 -* **Port**: 8883
393 -* **Credentials**: Basic
394 -* **Enable SSL**: YES
395 -* **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
396 -* **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
397 -* **Topic: v1/devices/me/telemetry** (The topic can be anything; you can even use just the device name. For example, you can use your device name here, such as S31B-NB.)
398 -* **QoS:** 0-At most once
399 -
400 -
401 -
402 -[[image:add-integration-connection.png||height="511" width="500"]]
403 -
404 -
405 -Click on the **Advanced settings** button.
406 -
407 -* **Clean session:** YES
408 -* **Retained**: YES
409 -
410 -[[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
411 -
412 -
413 -Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
414 -
415 -
416 -[[image:check-connection.png||height="83" width="300"]]
417 -
418 -
419 -If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
420 -
421 -
422 -[[image:connection-success.png||height="511" width="500"]]
423 -
424 -
425 425  Click on the **Add** button.
426 426  
427 -You should see that the newly added integration is listed on the **Integrations** page.
292 +[[image:downlink-data-converter.png||height="530" width="500"]]
428 428  
429 -Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
430 430  
295 +You should see that the newly added **downlink data converter** is listed on the **Data Converters** page.
431 431  
432 -[[image:new-integration-pending.png]]
297 +[[image:data-converter-list.png]]
433 433  
434 434  
435 -= 5. Verifying the receipt of data from virtual devices =
300 += 4. Add Integration =
436 436  
437 437  
438 -== 5.1 How does it work? ==
303 +In the left navigation, click **Integrations center**, and then click **Integrations**.
439 439  
305 +On the **Integrations** page, click on the '**+**' button.
440 440  
441 -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.
307 +[[image:data-converter-list-page.png]]
442 442  
443 -The Mosquitto client publishes messages (payloads) on the topic **v1/devices/me/telemetry**. Of course, you can use any topic for testing.
444 444  
445 -(% id="cke_bm_37386S" style="display:none" %) (%%)The MQTT payload format is as follows, which is common for all **~-~-NB** and **~-~-CB** series devices. The **IMEI** field is mandatory and is used to provision a new device with the name assigned to it in ThingsBoard.
310 +The **Add integration** window appears.
446 446  
447 -{{code language="none"}}
448 -{"IMEI": "S31B-NB", "temperature": 27, ......}
449 -{{/code}}
312 +In the **Add integration** window, configure the following settings:
450 450  
451 -Once ThingsBoard receives this message, it automatically creates (provisions) the device mentioned in the **IMEI**, for example, S31B-NB.
452 452  
315 +**Basic settings:**
453 453  
454 -== 5.2 Sending messages ==
317 +* **Integration type**: MQTT
318 +* **Name**: MQTT integration NB/CB
455 455  
320 +Click **Next** button.
456 456  
457 -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 S31B-NB and 27, respectively. This payload is also (technically) known as telemetry.
322 +[[image:add-integration-basic-settings.png||height="511" width="500"]]
458 458  
459 -{{code language="none"}}
460 -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}'
461 -{{/code}}
462 462  
463 -If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
325 +**Uplink data converter:**
464 464  
327 +* Click on the **Select existing** button.
328 +* **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
465 465  
466 -[[image:integration-active.png]]
330 +Click **Next** button.
467 467  
332 +[[image:add-integration-uplink-data-converter.png||width="500"]]
468 468  
469 -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**.
470 470  
335 +**Downlink data converter:**
471 471  
472 -[[image:new-device.png]]
337 +* Click on the **Select existing** button.
338 +* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
473 473  
340 +Click **Next** button.
474 474  
475 -== 5.3 Viewing messages ==
342 +[[image:add-integration-downlink-data-converter.png||height="510" width="500"]]
476 476  
477 477  
478 -Go back to the **Integrations** page.
345 +**Connection:**
479 479  
480 -Click on the **MQTT integration NB/CB** in the **Integrations** page to see its details.
347 +* **Host**: mqtt.eu.thingsboard.cloud (This is the host name you copied from the device - See section xxxxx for more information)
348 +* **Port**: 1883 (This is the port number you copied from the device - See section xxxxx for more information)
349 +* **Credentials**: Basic
350 +* **Username**: Access token (This is the access token you copied from the device)
351 +* **Password** - Leave it as blank
352 +* **Topic** - v1/devices/+/telemetry (sightly modify the topic 'v1/devices/me/telemetry' you copied from the device to enable receiving data from any 'device name')
353 +* **QoS** - 0-At most once
481 481  
482 -Click on the **Edit** button (//**pen icon**//).
355 +Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
483 483  
484 -Click on the **Disabled** button in the upper-right corner.
357 +[[image:add-integration-connection.png||width="500"]]
485 485  
486 -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.
487 487  
488 -Click on the **Apply** button.
360 +If the connection is successful, you will see the **Connected** message.
489 489  
490 -Then click on the **Apply changes** (//**tick icon**//) button.
491 -
492 -
493 -[[image:Screenshot 2025-03-18 at 09.23.10.png]]
494 -
495 -
496 -Now go to the **Events** tab.
497 -
498 -Select the Event type as **Debug** from the dropdown list.
499 -
500 -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.
501 -
502 -
503 -[[image:Screenshot 2025-03-16 at 18.38.59.png]]
504 -
505 -
506 -Then click on the **three dots (...)** in the **Message** column. You can see the uplink message's **payload** in the **Message** window.
507 -
508 -
509 -[[image:Screenshot 2025-03-16 at 18.39.12.png]]
510 -
511 -
512 -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.
513 -
514 -
515 -= 6. Creating a Dashboard =
516 -
517 -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.
518 -
519 -
520 -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.
521 -
522 -
523 -First simulate a few messages using MQTT. This time, we have added the 'humidity' field to the payload. Eg:
524 -
525 -{{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}}
526 -
527 -
528 -In **ThingsBoard**, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu.
529 -
530 -
531 -[[image:dashboard-1.png]]
532 -
533 -
534 -In the **Title** text box, enter **NB/CB Test Dashboard** as the title of the dashboard.
535 -
536 536  Click on the **Add** button.
537 537  
364 +[[image:add-connection-success.png||height="511" width="500"]]
538 538  
539 -[[image:dashboard-2.png||height="526" width="500"]]
540 540  
367 +You should see that the newly added integration is listed on the **Integrations** page.
541 541  
542 -Click on the **Add widget / Add new widget** button.
369 +Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
543 543  
371 +[[image:integrations-list-added-pending.png]]
544 544  
545 -[[image:dashboard-3.png]]
546 546  
374 += 5. Verifying the receipt of data from the device =
547 547  
548 -In the **Select widgets bundle** window, click **Charts**.
549 549  
377 +On the terminal, issue the following MQTT command which simulates the device S31B-NB.
550 550  
551 -[[image:dashboard-4.png||height="537" width="700"]]
552 -
553 -
554 -
555 -In the **Charts: select widget** window, click **Time series chart**.
556 -
557 -
558 -[[image:dashboard-5.png||height="525" width="700"]]
559 -
560 -
561 -Configure the **Time series chart** widget as follows:
562 -
563 -* **Datasource** - select S31B-NB device you provisioned.
564 -* **Series**:
565 -** **temperature** - you can see this key by default.
566 -** **humidity** - Click **Add series** button. Then add the **humidity** for the key and then type **%** as its unit.
567 -* Click on the **Add** button.
568 -
569 -[[image:timeseries-1.png||height="491" width="700"]]
570 -
571 -
572 -The time-series chart will appear in edit mode. Resize it by clicking and dragging the lower-right corner.
573 -
574 -Click the **Save** button to add the widget to the dashboard.
575 -
576 -
577 -[[image:timeseries-3.png||height="347" width="700"]]
578 -
579 -
580 -Now send the following MQTT messages from the terminal to simulate the data.
581 -
582 -
583 583  {{code language="none"}}
584 -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}'
585 -
586 -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}'
587 -
588 -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}'
589 -
380 +mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/S31B-NB/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:20}"
590 590  {{/code}}
591 591  
592 -The chart will update with the values in realtime, as shown in the below image.
383 +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.
593 593  
594 -
595 -[[image:timeseries-4.png||height="316" width="700"]]
596 -
597 -
598 -= 7. Configure NB-IoT Sensor =
599 -
600 -
601 -Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **TS01-NB**.
602 -
603 -First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
604 -
605 -
606 -**AT Commands**
607 -
608 -* **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
609 -* **AT+SUBTOPIC=<MQTT subscribe topic> Eg: TS01-NB**
610 -* **AT+PUBTOPIC=<MQTT publish topic> Eg: TS01-NB**
611 -* **AT+CLIENT=null**
612 -* **AT+UNAME=<MQTT Username>**
613 -* **AT+PWD=<MQTT Password>**
614 -* **AT+SERVADDR=<Broker address, Port>**
615 -
616 -Test your uplink by pressing the ACT button for 1 second.
617 617  
618 -
619 -
620 -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**.
621 -
622 -{{info}}
623 -The ThingsBoard uses the device's IMEI number included in the payload to create a device in the Devices section.
624 -{{/info}}
625 -
626 -[[image:image-4.png]]
627 -
628 -
629 -
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