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Last modified by Dilisi S on 2025/04/23 19:23
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edited by Dilisi S
on 2025/03/17 01:45
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To version 19.1
edited by Dilisi S
on 2025/03/04 04:15
Change comment: Uploaded new attachment "Data-converter-list.png", version {1}

Summary

Details

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Content
... ... @@ -6,193 +6,49 @@
6 6  Draft Document
7 7  {{/warning}}
8 8  
9 += Introduction =
9 9  
11 +This document guides you on integrating Dragino -NB and -CB series devices data with ThingsBoard. For this guide, we use ThingsBoard Cloud, which is one of the ThingsBoard versions that allows you to try it for free.
10 10  
13 +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.
11 11  
12 -= 1. Introduction =
13 13  
16 += Add New Device =
14 14  
15 -This document guides you on integrating Dragino **-NB** and **-CB** series devices data with ThingsBoard. For this guide, we use ThingsBoard Cloud, which is one of the ThingsBoard versions that allows you to try it for free.
18 +In the left navigation, click **Entities** and then click **Devices**.
16 16  
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  
21 +[[image:ThingsBoard-Device.png]]
19 19  
20 -= 2. Prerequisites =
21 21  
22 -To complete this tutorial, you need to have the following:
24 +On the ‘**Devices**’ page, click on the ‘**+**’ button, and then click on the ‘**Add new device**’ from the dropdown menu.
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.
29 29  
30 -== 2.1 ThingsBoard Cloud ==
27 +[[image:ThingsBoard-add-new-device.png||height="279" width="500"]]
31 31  
32 32  
33 -Go to [[https:~~/~~/thingsboard.io/>>https://thingsboard.io/]]
34 34  
35 -Click on the **Try it now**.
31 += Data Converters =
36 36  
37 37  
38 -[[image:thingsboard-1.png]]
34 +== Uplink ==
39 39  
36 +In the left navigation, click ‘Integrations center’, and then click ‘Data converters’.
40 40  
41 -Select either the **North America** or **Europe** region. Here, we use the Europe region.
42 42  
43 -[[image:thingsboard-2.png]]
39 +[[image:ThingsBoard-Data-Converters.png]]
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 +On the ‘Data converters’ page, click on the ‘+’ button, and then click on the ‘Create new converter’ from the dropdown menu.
47 47  
48 -Click on the **Sign up** button.
49 49  
50 -[[image:thingsboard-3.png||height="651" width="500"]]
45 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
51 51  
52 52  
53 -You will be navigated to the following page.
48 +The ‘Add data converter’ window will appear. Name it ‘**UDP Uplink Converter NB/CB**’ and select the Type as ‘Uplink’.
54 54  
55 -[[image:thingsboard-5.png||height="109" width="500"]]
50 +Click on the ‘JavaScript’ button. Now copy and paste the following script to the ‘Decoder function’ section:
56 56  
57 -
58 -simultaneously, you will receive an email to confirm your email address. Click on the **Activate Your Account** button.
59 -
60 -
61 -[[image:thingsboard-4.png||height="249" width="500"]]
62 -
63 -
64 -Now losing to the account using your credentials:
65 -
66 -
67 -[[image:thingsboard-6.png||height="244" width="500"]]
68 -
69 -
70 -== 2.2 HiveMQ Cloud ==
71 -
72 -=== 2.2.1 HiveMQ Cloud ===
73 -
74 -
75 -Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
76 -
77 -Click on the **Start Free** button.
78 -
79 -[[image:hivwmq-1.png]]
80 -
81 -
82 -Click on the **Sign Up FREE Now** button in the **HIVEMQ CLOUD** section.
83 -
84 -[[image:hivemq-2.png]]
85 -
86 -
87 -Click on the **Sign Up** button.
88 -
89 -You can sign up with HiveMQ using your **GitHub**, **Google**, or **LinkedIn** account.
90 -
91 -If not, provide your **email address** and a **password** to create an account by clicking on the **Sign Up** button.
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 -= 3. Data Converters =
168 -
169 -
170 -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.
171 -
172 -
173 -== 3.1 Uplink ==
174 -
175 -
176 -In the left navigation, click **Integrations center**, and then click **Data converters**.
177 -
178 -
179 -[[image:data-converters-list-empty.png]]
180 -
181 -
182 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
183 -
184 -
185 -
186 -[[image:create-new-converter-menu.png||height="259" width="500"]]
187 -
188 -
189 -The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
190 -
191 -Click on the **JavaScript** button.
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 -
196 196  {{code language="JavaScript"}}
197 197  //Version: 0.1
198 198  // decode payload to string
... ... @@ -313,69 +313,54 @@
313 313  }
314 314  
315 315  return result;
172 +
316 316  {{/code}}
317 317  
175 +Click on the ‘Add’ button.
318 318  
319 -Click on the **Add** button.
320 320  
178 +[[image:ThingsBoard-add-data-converter-uplink.png||width="500"]]
321 321  
322 -[[image:mqtt-uplink.png||width="500"]]
323 323  
181 +The uplink data converter is added to ThingsBoard and appears on the ‘Data Converters’ page
324 324  
325 325  
326 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
184 +== Downlink ==
327 327  
186 +On the ‘Data converters’ page, click on the ‘+’ button, and then click on the ‘Create new converter’ from the dropdown menu.
328 328  
329 -[[image:data-converter-list-showing-uplink-dc.png]]
330 330  
189 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
331 331  
332 -== 3.2 Downlink ==
333 333  
192 +The ‘**Add data converter**’ window will appear. Name it ‘**UDP Downlink Converter NB/CB**’ and select the Type as ‘**Downlink**’.
334 334  
335 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
194 +Click on the ‘**JavaScript**’ button. Now copy and paste the following script to the ‘**Encoder function**’ section:
336 336  
337 337  
338 -[[image:create-new-converter-menu.png||width="500"]]
339 -
340 -
341 -
342 -The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
343 -
344 -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.
345 -
346 -
347 347  {{code language="JavaScript"}}
348 -// Encode downlink data from incoming Rule Engine message
198 +function hexToBase64(hexString) {
199 + // 将16进制字符串两个字符转换为一个字节
200 + var bytes = hexString.match(/.{2}/g);
201 + // 对每个字节进行解析，并转换为对应的字符
202 + var binaryString = bytes.map(function(byte) {
203 + return String.fromCharCode(parseInt(byte, 16));
204 + }).join('');
205 +
206 + // 使用btoa进行base64编码
207 + return btoa(binaryString);
208 +}
349 349  
350 -// msg - JSON message payload downlink message json
351 -// msgType - type of message, for ex. 'ATTRIBUTES_UPDATED', 'POST_TELEMETRY_REQUEST', etc.
352 -// metadata - list of key-value pairs with additional data about the message
353 -// integrationMetadata - list of key-value pairs with additional data defined in Integration executing this converter
354 -
355 -/** Encoder **/
356 -
357 -var data = {};
358 -
359 -// Process data from incoming message and metadata
360 -
361 -data.tempFreq = msg.temperatureUploadFrequency;
362 -data.humFreq = msg.humidityUploadFrequency;
363 -
364 -data.devSerialNumber = metadata['ss_serialNumber'];
365 -
366 366  // Result object with encoded downlink payload
367 367  var result = {
368 -
369 369   // downlink data content type: JSON, TEXT or BINARY (base64 format)
370 - contentType: "JSON",
213 + contentType: "BINARY",
371 371  
372 372   // downlink data
373 - data: JSON.stringify(data),
216 + data:hexToBase64(metadata.shared_value)
374 374  
375 375   // Optional metadata object presented in key/value format
376 - metadata: {
377 - topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
378 - }
219 + //metadata: {}
379 379  
380 380  };
381 381  
... ... @@ -386,38 +386,27 @@
386 386  Click on the **Add** button.
387 387  
388 388  
389 -[[image:add-downlink-data-converter.png||height="529" width="500"]]
230 +[[image:ThingsBoard-add-data-converter-downlink.png||height="532" width="500"]]
390 390  
391 391  
392 -You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
233 += Add Integration =
393 393  
235 +In the left navigation, click ‘Integrations center’, and then click ‘Integrations’.
394 394  
395 -[[image:data-converters-list.png]]
237 +On the ‘Integrations’ page, click on the “+” button.
396 396  
397 397  
398 -= 4. Add Integration =
240 +[[image:ThingsBoard-add-integration.png]]
399 399  
400 400  
401 -In the left navigation, click **Integrations center**, and then click **Integrations**.
243 +The ‘Add integration’ window appears.
402 402  
245 +In the Add Integration window, configure the following settings:
403 403  
404 -[[image:integrations-list-empty.png]]
405 -
406 -
407 -On the **Integrations** page, click on the '**+**' button.
408 -
409 -
410 -The **Add integration** window appears.
411 -
412 -In the **Add integration** window, configure the following settings:
413 -
414 -
415 415  **Basic settings:**
416 416  
417 -* **Integration type**: MQTT
418 -* **Name**: MQTT integration NB/CB
419 -* **Enable integration**: YES
420 -* **Allows create devices or assets**: YES
249 +* **Integration type**: UDP
250 +* **Name**: UDP Integration NB/CB
421 421  
422 422  Click **Next** button.
423 423  
... ... @@ -427,8 +427,8 @@
427 427  
428 428  **Uplink data converter:**
429 429  
430 -* Click on the **Select existing** button.
431 -* **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
260 +* Click on the ‘**Select existing**’ button.
261 +* Uplink data converter: Select ‘**UDP Uplink Converter NB/CB**’ from the dropdown list.
432 432  
433 433  Click **Next** button.
434 434  
... ... @@ -438,235 +438,38 @@
438 438  
439 439  **Downlink data converter:**
440 440  
441 -* Click on the **Select existing** button.
442 -* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
271 +* Click on the ‘**Select existing**’ button.
272 +* Downlink data converter: Select ‘**UDP Downlink Converter NB/CB**’ from the dropdown list.
443 443  
444 444  Click **Next** button.
445 445  
446 446  
447 -[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
277 +[[image:add-integration-downlink-data-converter.png||height="512" width="500"]]
448 448  
449 449  
450 450  **Connection:**
451 451  
452 -* **Host**: Cluster URL (Eg. 011731f7xxxxxxxxxxxfbbedfc63f4.s1.eu.hivemq.cloud)
453 -* **Port**: 8883
454 -* **Credentials**: Basic
455 -* **Enable SSL**: YES
456 -* **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
457 -* **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
458 -* **Topic: v1/devices/+/telemetry** (the + replaces any 'device name' will create a device in the Entities -> Devices)
459 -* **QoS:** 0-At most once
282 +**Port**: 11582
460 460  
461 -[[image:add-integration-connection.png||height="511" width="500"]]
284 +**Size of the buffer for inbound socket (in KB)**: 64
462 462  
286 +**Cache Size**: 10000000
463 463  
464 -Click on the **Advanced settings** button.
288 +**Cache time to live in minutes**: 1440
465 465  
466 -* **Clean session:** YES
467 -* **Retained**: YES
468 468  
469 -[[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
291 +Copy the two keys, **Integration key** and **Integration secret** into a text editor, as you will need them in the section ‘xxxxx’.
470 470  
471 -
472 -Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
473 -
474 -
475 -[[image:check-connection.png||height="83" width="300"]]
476 -
477 -
478 -If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
479 -
480 -
481 -[[image:connection-success.png||height="511" width="500"]]
482 -
483 -
484 484  Click on the **Add** button.
485 485  
486 -You should see that the newly added integration is listed on the **Integrations** page.
487 487  
488 -Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
296 +[[image:add-integration-connection.png||height="511" width="500"]]
489 489  
490 490  
491 491  
492 -[[image:new-integration-pending.png]]
300 += Verifying the receipt of data from the device =
493 493  
302 +Connect **S31B-NB** to transfer information. If the integration was performed without errors, after the transmission of the first telemetry, a new device with the name “xxxxx” 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.
494 494  
495 -= 5. Verifying the receipt of data from virtual devices =
496 496  
497 -
498 -== 5.1 How does it work? ==
499 -
500 -
501 -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.
502 -
503 -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.
504 -
505 -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.
506 -
507 -
508 -**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.**
509 -
510 -
511 -For example, if you send two MQTT messages with different device names in the topic:
512 -
513 -1. v1/devices/**S31B-NB**/telemetry
514 -1. v1/devices/**LDS25-NB**/telemetry
515 -
516 -ThingsBoard will create two devices named **S31B-NB** and **LDS25-NB** in the **//Devices//** section.
517 -
518 -
519 -The MQTT payload format is as follows, which is common for all ~-~-NB and ~-~-CB series devices:
520 -
521 -{{code language="none"}}
522 -{"temperature":10.4, "humidity":85}
523 -{{/code}}
524 -
525 -
526 -== 5.2 Sending messages ==
527 -
528 -
529 -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.
530 -
531 -{{code language="none"}}
532 -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}'
533 -{{/code}}
534 -
535 -If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
536 -
537 -
538 -[[image:integration-active.png]]
539 -
540 -
541 -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**.
542 -
543 -
544 -[[image:device-provision-1.png]]
545 -
546 -
547 -Click on the device S31B-NB on the devices list to see its details.
548 -
549 -Then go to the **Latest telemetry** tab.
550 -
551 -You can see the fields temperature and humidity with the values you previously sent using the MQTT message.
552 -
553 -
554 -[[image:telemetry-1.png]]
555 -
556 -
557 -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//.
558 -
559 -
560 -[[image:telemetry-2.png]]
561 -
562 -
563 -Let's provision the second device named **LDS25-NB **with initial telemetry. Use the following MQTT message.
564 -
565 -
566 -{{code language="none"}}
567 -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}'
568 -{{/code}}
569 -
570 -Now, refresh the **Devices** page, and you will see the second device, **LDS25-NB**, which was recently provisioned.
571 -
572 -
573 -[[image:device-provision-2.png]]
574 -
575 -
576 -= 6. Creating a Dashboard =
577 -
578 -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.
579 -
580 -
581 -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.
582 -
583 -
584 -In **ThingsBoard**, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu.
585 -
586 -
587 -[[image:dashboard-1.png]]
588 -
589 -
590 -In the **Title** text box, enter **NB/CB Test Dashboard** as the title of the dashboard.
591 -
592 -Click on the **Add** button.
593 -
594 -
595 -[[image:dashboard-2.png||height="526" width="500"]]
596 -
597 -
598 -Click on the **Add widget / Add new widget** button.
599 -
600 -
601 -[[image:dashboard-3.png]]
602 -
603 -
604 -In the **Select widgets bundle** window, click **Charts**.
605 -
606 -
607 -[[image:dashboard-4.png||height="537" width="700"]]
608 -
609 -
610 -
611 -In the **Charts: select widget** window, click **Time series chart**.
612 -
613 -
614 -[[image:dashboard-5.png||height="525" width="700"]]
615 -
616 -
617 -Configure the **Time series chart** widget as follows:
618 -
619 -* **Datasource** - select S31B-NB device you provisioned.
620 -* **Series**:
621 -** **temperature** - you can see this key by default.
622 -** **humidity** - Click **Add series** button. Then add the **humidity** for the key and then type **%** as its unit.
623 -* Click on the **Add** button.
624 -
625 -[[image:timeseries-1.png||height="491" width="700"]]
626 -
627 -
628 -The time-series chart will appear in edit mode. Resize it by clicking and dragging the lower-right corner.
629 -
630 -Click the **Save** button to add the widget to the dashboard.
631 -
632 -
633 -[[image:timeseries-3.png||height="347" width="700"]]
634 -
635 -
636 -Now send the following MQTT messages from the terminal to simulate the data.
637 -
638 -
639 -{{code language="none"}}
640 -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}'
641 -
642 -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}'
643 -
644 -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}'
645 -
646 -{{/code}}
647 -
648 -The chart will update with the values in realtime, as shown in the below image.
649 -
650 -
651 -[[image:timeseries-4.png||height="316" width="700"]]
652 -
653 -
654 -= 7. Configure NB-IoT Sensor =
655 -
656 -
657 -Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **S31B-NB**.
658 -
659 -First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
660 -
661 -
662 -**AT Commands**
663 -
664 -* **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
665 -* **AT+SUBTOPIC=<MQTT topic>**
666 -* **AT+PUBTOPIC=<MQTT topic>**
667 -* **AT+CLIENT=null**
668 -* **AT+UNAME=<MQTT Username>**
669 -* **AT+PWD=<MQTT Password>**
670 -* **AT+SERVADDR=<Broker address, Port>**
671 -
672 -Test your uplink by pressing the ACT button for 1 second.
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