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Last modified by Dilisi S on 2025/04/23 19:23
From version 195.1
edited by Dilisi S
on 2025/03/28 00:38
Change comment: Mar 17 edits - part 3
To version 111.1
edited by Dilisi S
on 2025/03/08 19:52
Change comment: Uploaded new attachment "hivemq-5.png", version {1}

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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 =
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.
29 29  
30 -== 2.1 ThingsBoard Cloud ==
23 += 2. Data Converters =
31 31  
32 32  
33 -Go to [[https:~~/~~/thingsboard.io/>>https://thingsboard.io/]]
26 +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.
34 34  
35 -Click on the **Try it now**.
36 36  
29 +== 2.1 Uplink ==
37 37  
38 -[[image:thingsboard-1.png]]
39 39  
32 +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]]
44 44  
36 +[[image:data-converters-list-empty.png]]
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**.
47 47  
48 -Click on the **Sign up** button.
39 +On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
49 49  
50 -[[image:thingsboard-3.png||height="651" width="500"]]
51 51  
52 52  
53 -You will be navigated to the following page.
43 +[[image:create-new-converter-menu.png||height="259" width="500"]]
54 54  
55 -[[image:thingsboard-5.png||height="109" width="500"]]
56 56  
46 +The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
57 57  
58 -simultaneously, you will receive an email to confirm your email address. Click on the **Activate Your Account** button.
48 +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.
59 59  
50 +{{code language="JavaScript"}}
51 +/** Decoder **/
60 60  
61 -[[image:thingsboard-4.png||height="249" width="500"]]
53 +// decode payload to string
54 +var payloadStr = decodeToString(payload);
55 +var data = JSON.parse(payloadStr);
62 62  
57 +var deviceName = metadata.topic.split("/")[3];
58 +// decode payload to JSON
59 +var deviceType = 'sensor';
63 63  
64 -Now losing to the account using your credentials:
61 +// Result object with device attributes/telemetry data
62 +var result = {
63 + deviceName: deviceName,
64 + deviceType: deviceType,
65 + attributes: {
66 + integrationName: metadata['integrationName'],
67 + },
68 + telemetry: {
69 + temperature: data.temperature,
70 + humidity: data.humidity,
71 + }
72 +};
65 65  
74 +/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
66 66  
67 -[[image:thingsboard-6.png||height="244" width="500"]]
76 +return result;
77 +{{/code}}
68 68  
69 69  
70 -== 2.2 HiveMQ Cloud ==
80 +Click on the **Add** button.
71 71  
72 -=== 2.2.1 HiveMQ Cloud ===
73 73  
74 74  
75 -Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
84 +[[image:add-uplink-data-converter.png||height="529" width="500"]]
76 76  
77 -Click on the **Start Free** button.
78 78  
79 -[[image:hivwmq-1.png]]
87 +You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
80 80  
89 +[[image:data-converter-list-showing-uplink-dc.png]]
81 81  
82 -Click on the **Sign Up FREE Now** button in the **HIVEMQ CLOUD** section.
83 83  
84 -[[image:hivemq-2.png]]
85 85  
93 +== 3.2 Downlink ==
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.
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. Creating Devices (Optional) =
168 -
169 -{{info}}
170 -**The following procedure is optional. If you haven't created any device in ThingsBoard first, ThingsBoard will automatically create a device for you based on the integration settings (the device name defined in the uplink decoder) just after it receives the first uplink from your device.Type your information message here.**
171 -{{/info}}
172 -
173 -First, you need to create devices in ThingsBoard to represent your physical devices. For example, you can name it **Device A**, and the second device could be **Device B** or any name you prefer. The device name should be unique within the **Devices** space.
174 -
175 -
176 -In the left navigation, click **Entities -> Devices**.
177 -
178 -Click the **Add Device** button (the button with the **+** sign), and from the dropdown menu, click **Add new device**.
179 -
180 -In the **Add new device** dialog box, enter the device name in the **Name** text box. For example, we will use **Device A**.
181 -
182 -Click the **Add** button.
183 -
184 -Skip the **connectivity testing** by clicking the **Close** button.
185 -
186 -The device is created and listed on the **Devices** page. Note that its initial state is **Inactive** because it has not received any data yet.
187 -
188 -
189 -= 4. Data Converters =
190 -
191 -
192 -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.
193 -
194 -
195 -== 4.1 Uplink ==
196 -
197 -
198 -In the left navigation, click **Integrations center**, and then click **Data converters**.
199 -
200 -
201 -[[image:data-converters-list-empty.png]]
202 -
203 -
204 204  On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
205 205  
206 206  
99 +[[image:create-new-converter-menu.png||width="500"]]
207 207  
208 -[[image:create-new-converter-menu.png||height="259" width="500"]]
209 209  
210 210  
211 -The **Add data converter** window will appear.
103 +The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
212 212  
213 -Let's create an uplink data converter for the device named '**Device A**'. Name it ‘**MQTT Uplink Converter - Device A**’ and select the Type as **Uplink**.
105 +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.
214 214  
215 -Click on the **TBEL** button if it has not been selected by default.
216 216  
217 -Modify the default TBEL function to match with your device as described below:
108 +{{code language="JavaScript"}}
109 +// Encode downlink data from incoming Rule Engine message
218 218  
111 +// msg - JSON message payload downlink message json
112 +// msgType - type of message, for ex. 'ATTRIBUTES_UPDATED', 'POST_TELEMETRY_REQUEST', etc.
113 +// metadata - list of key-value pairs with additional data about the message
114 +// integrationMetadata - list of key-value pairs with additional data defined in Integration executing this converter
219 219  
220 -* Uncomment** line 11**:
116 +/** Encoder **/
221 221  
222 -//var data = decodeToJson(payload)//
118 +var data = {};
223 223  
120 +// Process data from incoming message and metadata
224 224  
225 -* **Line 13**: Assign your device name to the **deviceName** field. - We used **Device A** as it is to match with our device, **Device A **in the Devices section.
226 -* From **line 38**: Modify the telemetry section to allow parsed data to be assigned to the fields.
122 +data.tempFreq = msg.temperatureUploadFrequency;
123 +data.humFreq = msg.humidityUploadFrequency;
227 227  
228 -//telemetry: {
229 - temperature: data.temperature,
230 - humidity: data.humidity,
231 - rawData: payloadStr
232 - }//
125 +data.devSerialNumber = metadata['ss_serialNumber'];
233 233  
127 +// Result object with encoded downlink payload
128 +var result = {
234 234  
235 -The modified uplink decoder function to match with **Device A** is shown below.
130 + // downlink data content type: JSON, TEXT or BINARY (base64 format)
131 + contentType: "JSON",
236 236  
237 -{{code language="JavaScript"}}
238 -// Decode an uplink message from a buffer
239 -// payload - array of bytes
240 -// metadata - key/value object
133 + // downlink data
134 + data: JSON.stringify(data),
241 241  
242 -/** Decoder **/
136 + // Optional metadata object presented in key/value format
137 + metadata: {
138 + topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
139 + }
243 243  
244 -// decode payload to string
245 -var payloadStr = decodeToString(payload);
246 -
247 -// decode payload to JSON
248 -var data = decodeToJson(payload);
249 -
250 -var deviceName = 'Device A';
251 -var deviceType = 'thermostat';
252 -var customerName = 'Customer C';
253 -var groupName = 'thermostat devices';
254 -var manufacturer = 'Example corporation';
255 -// use assetName and assetType instead of deviceName and deviceType
256 -// to automatically create assets instead of devices.
257 -// var assetName = 'Asset A';
258 -// var assetType = 'building';
259 -
260 -// Result object with device/asset attributes/telemetry data
261 -var result = {
262 -// Use deviceName and deviceType or assetName and assetType, but not both.
263 - deviceName: deviceName,
264 - deviceType: deviceType,
265 -// assetName: assetName,
266 -// assetType: assetType,
267 -// customerName: customerName,
268 - groupName: groupName,
269 - attributes: {
270 - model: 'Model A',
271 - serialNumber: 'SN111',
272 - integrationName: metadata['integrationName'],
273 - manufacturer: manufacturer
274 - },
275 - telemetry: {
276 - temperature: data.temperature,
277 - humidity: data.humidity,
278 - rawData: payloadStr
279 - }
280 280  };
281 281  
282 -/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
283 -
284 284  return result;
285 285  {{/code}}
286 286  
287 287  
288 -Once you modify the decoder function, click on the **Add** button.
147 +Click on the **Add** button.
289 289  
290 290  
291 291  
292 -[[image:ul-data-converter-device-a.png||height="524" width="500"]]
151 +[[image:add-downlink-data-converter.png||height="529" width="500"]]
293 293  
294 294  
295 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
154 +You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
296 296  
297 297  
298 -[[image:ul-data-converter-added.png||height="257"]]
157 +[[image:data-converters-list.png]]
299 299  
159 +(% class="wikigeneratedid" %)
300 300  
301 301  
302 -= 5. Add Integration =
162 += 3. Add Integration =
303 303  
304 304  
305 305  In the left navigation, click **Integrations center**, and then click **Integrations**.
... ... @@ -319,7 +319,7 @@
319 319  **Basic settings:**
320 320  
321 321  * **Integration type**: MQTT
322 -* **Name**: MQTT integration - Device A
182 +* **Name**: MQTT integration NB/CB
323 323  * **Enable integration**: YES
324 324  * **Allows create devices or assets**: YES
325 325  
... ... @@ -326,11 +326,10 @@
326 326  Click **Next** button.
327 327  
328 328  
329 -[[image:add-integration-basic-settings.png||height="504" width="500"]]
330 330  
190 +[[image:add-integration-basic-settings.png||height="511" width="500"]]
331 331  
332 332  
333 -
334 334  **Uplink data converter:**
335 335  
336 336  * Click on the **Select existing** button.
... ... @@ -339,41 +339,41 @@
339 339  Click **Next** button.
340 340  
341 341  
342 -[[image:add-integration-ul-data-converter.png||height="505" width="500"]]
343 343  
202 +[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
344 344  
345 345  
346 346  **Downlink data converter:**
347 347  
348 -Dragino NB/CB devices don't require a downlink data converter to decode their payloads, so you can skip this step.
207 +* Click on the **Select existing** button.
208 +* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
349 349  
350 -* Click on the **Skip **button in the Downlink data converter section.
210 +Click **Next** button.
351 351  
352 -Click **Skip** button.
353 353  
354 354  
355 -[[image:integration-dl-skip.png||height="511" width="500"]]
214 +[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
356 356  
357 357  
358 -
359 359  **Connection:**
360 360  
361 -* **Host**: Host URL (Eg. **//011731f7xxxxxxxxxxxfbbedfc63f4.s1.eu.hivemq.cloud//**)
219 +* **Host**: Cluster URL (Eg. 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud)
362 362  * **Port**: 8883
363 -* **Credentials type**: Basic
221 +* **Credentials**: Basic
222 +* **Enable SSL**: YES
364 364  * **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
365 365  * **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
366 -* **Enable SSL**: YES
367 -* **Topic: device/a** (The topic can be anything; you can even use just the device name.)
225 +* **Topic:** tb/mqtt-integration-tutorial/sensors/+/telemetry (the + replaces any 'device name' and creates devices in the Entities -> Devices)
368 368  * **QoS:** 0-At most once
369 369  
370 -[[image:add-integartion-connection.png||height="505" width="500"]]
371 371  
229 +[[image:add-integration-connection.png||height="511" width="500"]]
372 372  
231 +
373 373  Click on the **Advanced settings** button.
374 374  
375 -* **Clean session:** YES
376 -* **Retained**: YES
234 +* **Clean session:** NO
235 +* **Retained**: NO
377 377  
378 378  [[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
379 379  
... ... @@ -381,10 +381,11 @@
381 381  Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
382 382  
383 383  
243 +
384 384  [[image:check-connection.png||height="83" width="300"]]
385 385  
386 386  
387 -If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
247 +If the connection is successful, you will see the **Connected** message.
388 388  
389 389  
390 390  [[image:connection-success.png||height="511" width="500"]]
... ... @@ -392,209 +392,22 @@
392 392  
393 393  Click on the **Add** button.
394 394  
255 +
256 +
395 395  You should see that the newly added integration is listed on the **Integrations** page.
396 396  
397 397  Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
398 398  
261 +[[image:integrations-list-added-pending.png]]
399 399  
400 -[[image:integration-added.png]]
401 401  
264 += 5. Verifying the receipt of data from the device =
402 402  
403 403  
404 -= 6. Verifying the receipt of data from virtual devices =
267 +On the terminal, issue the following MQTT command which simulates the device S31B-NB.
405 405  
406 -
407 -== 6.1 How does it work? ==
408 -
409 -
410 -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.
411 -
412 -The Mosquitto client publishes messages (payloads) on the topic **/device/a**. Of course, you can use any topic for testing.
413 -
414 -(% id="cke_bm_37386S" style="display:none" %) (%%)The MQTT payload format is as follows:
415 -
416 416  {{code language="none"}}
417 -{"IMEI": "350693903995577", "temperature":25, "humidity":80, "pressure":1005}
270 +mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/S31B-NB/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:20}"
418 418  {{/code}}
419 419  
420 -Once ThingsBoard receives this message, it forwards this payload to the matching device through the integration.
421 -
422 -
423 -== 5.2 Sending messages ==
424 -
425 -
426 -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.
427 -
428 -{{code language="none"}}
429 -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}'
430 -{{/code}}
431 -
432 -If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
433 -
434 -
435 -[[image:integration-active.png]]
436 -
437 -
438 -== 6.3 Viewing messages ==
439 -
440 -
441 -Go back to the **Integrations** page.
442 -
443 -Click on the **MQTT integration NB/CB** in the **Integrations** page to see its details.
444 -
445 -Click on the **Edit** button (//**pen icon**//).
446 -
447 -Click on the **Disabled** button in the upper-right corner.
448 -
449 -Turn on the **All messages (15 min)** option. This will enable displaying all messages in the **Events** tab. This setting will expire in 15 minutes, and you will need to repeat the same steps if you want to view the messages in the Events tab later.
450 -
451 -Click on the **Apply** button.
452 -
453 -Then click on the **Apply changes** (//**tick icon**//) button.
454 -
455 -
456 -[[image:debug-enabled.png||height="301" width="700"]]
457 -
458 -
459 -
460 -
461 -Now go to the **Events** tab.
462 -
463 -Select the **Event type** as **Debug** from the dropdown list.
464 -
465 -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:
466 -
467 -{{code language="none"}}
468 -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}'
469 -{{/code}}
470 -
471 -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.
472 -
473 -
474 -[[image:Screenshot 2025-03-26 at 19.49.31.png]]
475 -
476 -
477 -
478 -Then click on the **three dots (...)** in the **Message** column. You can see the uplink message's **payload** in the **Message** window.
479 -
480 -
481 -[[image:Screenshot 2025-03-26 at 19.47.52.png]]
482 -
483 -
484 -
485 -
486 -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.
487 -
488 -
489 -= 7. Creating a Dashboard =
490 -
491 -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.
492 -
493 -
494 -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.
495 -
496 -
497 -First simulate a few messages using MQTT. This time, we have added the 'humidity' field to the payload. Eg:
498 -
499 -{{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}}
500 -
501 -
502 -In **ThingsBoard**, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu.
503 -
504 -
505 -[[image:dashboard-1.png]]
506 -
507 -
508 -In the **Title** text box, enter **NB/CB Test Dashboard** as the title of the dashboard.
509 -
510 -Click on the **Add** button.
511 -
512 -
513 -[[image:dashboard-2.png||height="526" width="500"]]
514 -
515 -
516 -Click on the **Add widget / Add new widget** button.
517 -
518 -
519 -[[image:dashboard-3.png]]
520 -
521 -
522 -In the **Select widgets bundle** window, click **Charts**.
523 -
524 -
525 -[[image:dashboard-4.png||height="537" width="700"]]
526 -
527 -
528 -
529 -In the **Charts: select widget** window, click **Time series chart**.
530 -
531 -
532 -[[image:dashboard-5.png||height="525" width="700"]]
533 -
534 -
535 -Configure the **Time series chart** widget as follows:
536 -
537 -* **Datasource** - select S31B-NB device you provisioned.
538 -* **Series**:
539 -** **temperature** - you can see this key by default.
540 -** **humidity** - Click **Add series** button. Then add the **humidity** for the key and then type **%** as its unit.
541 -* Click on the **Add** button.
542 -
543 -[[image:timeseries-1.png||height="491" width="700"]]
544 -
545 -
546 -The time-series chart will appear in edit mode. Resize it by clicking and dragging the lower-right corner.
547 -
548 -Click the **Save** button to add the widget to the dashboard.
549 -
550 -
551 -[[image:timeseries-3.png||height="347" width="700"]]
552 -
553 -
554 -Now send the following MQTT messages from the terminal to simulate the data.
555 -
556 -
557 -{{code language="none"}}
558 -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}'
559 -
560 -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}'
561 -
562 -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}'
563 -
564 -{{/code}}
565 -
566 -The chart will update with the values in realtime, as shown in the below image.
567 -
568 -
569 -[[image:timeseries-4.png||height="316" width="700"]]
570 -
571 -
572 -= 8. Configure NB-IoT Sensor =
573 -
574 -
575 -Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **TS01-NB**.
576 -
577 -First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
578 -
579 -
580 -**AT Commands**
581 -
582 -* **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
583 -* **AT+SUBTOPIC=<MQTT subscribe topic> Eg: TS01-NB**
584 -* **AT+PUBTOPIC=<MQTT publish topic> Eg: TS01-NB**
585 -* **AT+CLIENT=null**
586 -* **AT+UNAME=<MQTT Username>**
587 -* **AT+PWD=<MQTT Password>**
588 -* **AT+SERVADDR=<Broker address, Port>**
589 -
590 -Test your uplink by pressing the ACT button for 1 second.
591 -
592 -
593 -
594 -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**.
595 -
596 -{{info}}
597 -The ThingsBoard uses the device's IMEI number included in the payload to create a device in the Devices section.
598 -{{/info}}
599 -
600 -[[image:image-4.png]]
273 +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.
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