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Last modified by Dilisi S on 2025/04/23 19:23
From version 156.1
edited by Dilisi S
on 2025/03/17 00:34
Change comment: Uploaded new attachment "mqtt-uplink.png", version {1}
To version 92.1
edited by Dilisi S
on 2025/03/08 03:57
Change comment: Uploaded new attachment "data-converters-list.png", version {1}

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... ... @@ -17,154 +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 -(% class="wikigeneratedid" %)
71 -== 2.2 HiveMQ Cloud ==
72 72  
73 -=== 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.
74 74  
75 75  
76 -Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
75 +[[image:new-device-telemetry-test.png||height="520" width="500"]]
77 77  
78 -Click on the **Start Free** button.
79 79  
80 -[[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.
81 81  
80 +Once you are done experimenting with this, close the window by clicking the **Close** button.
82 82  
83 -Click on the **Sign Up FREE Now** button in the **HIVEMQ CLOUD** section.
84 84  
85 -[[image:hivemq-2.png]]
83 +[[image:mqtt-command-2.png||height="227" width="700"]]
86 86  
87 87  
88 -Click on the **Sign Up** button.
89 89  
90 -You can sign up with HiveMQ using your **GitHub**, **Google**, or **LinkedIn** account.
87 +[[image:virtual-device-active.png]]
91 91  
92 -If not, provide your **email address** and a **password** to create an account by clicking on the **Sign Up** button.
93 93  
94 -
95 -[[image:hivemq-3.png]]
96 -
97 -
98 -You will receive an email to verify your email address. Click on the **Confirm my account** button.
99 -
100 -
101 -[[image:hivemq-4.jpg||height="889" width="400"]]
102 -
103 -
104 -You will be redirected to a page asking you to complete your profile. Once done, click the **Continue** button.
105 -
106 -
107 -[[image:hivemq-5.png||height="655" width="700"]]
108 -
109 -
110 -Select the CloudMQ Cloud plan you need. For testing purposes, select the **Serverless FREE** plan by clicking on the **Create Serverless Cluster** button.
111 -
112 -
113 -[[image:hivemq-6.png]]
114 -
115 -
116 -You will be navigated to the **Your Clusters** page. Click on the **Manage Cluster** button.
117 -
118 -[[image:hivemq-7.png]]
119 -
120 -
121 -In your cluster page, you can find some useful parameters you need to create a MQTT connection.
122 -
123 -**URL**: This is the host name. Click on the copy button to copy it.
124 -
125 -**Port**: 8883
126 -
127 -
128 -Click on the **Getting Started** tab to setup the username and the password as the connection credentials.
129 -
130 -
131 -[[image:hivemq-8.png]]
132 -
133 -
134 -In the '**Create Connection Credentials**' section, provide a **username** and **password**, then click the **Add** button.
135 -
136 -
137 -[[image:hivemq-9.png]]
138 -
139 -
140 -
141 -If everything is successful, you will see the following message.
142 -
143 -
144 -[[image:hivemq-10.png||height="206" width="500"]]
145 -
146 -
147 -You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
148 -
149 -
150 -=== 2.2.2 emqx ===
151 -
152 -
153 -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.
154 -
155 -
156 -[[image:emqx.png||height="420" width="500"]]
157 -
158 -
159 -=== 2.2.3 Ins1.thingseye.io ===
160 -
161 -[[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.
162 -
163 -If customers need to use this MQTT connection with ThingsBoard, they need to contact the TE team to obtain three license files.
164 -
165 -[[image:ins1.png||height="310" width="500"]]
166 -
167 -
168 168  = 3. Data Converters =
169 169  
170 170  
... ... @@ -176,112 +176,188 @@
176 176  
177 177  In the left navigation, click **Integrations center**, and then click **Data converters**.
178 178  
101 +[[image:data-converter-list-page.png]]
179 179  
180 180  
181 -[[image:data-converters-list-empty.png]]
104 +On the **Data converters** page, click on the ‘+’ button, and then click on the **Create new converter** from the dropdown menu.
182 182  
106 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
183 183  
184 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
185 185  
186 -
187 -
188 -[[image:create-new-converter-menu.png||height="259" width="500"]]
189 -
190 -
191 191  The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
192 192  
193 -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.
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.
194 194  
195 195  {{code language="JavaScript"}}
196 -/** Decoder **/
197 -
114 +//Version: 0.1
198 198  // decode payload to string
199 199  var payloadStr = decodeToString(payload);
200 -var data = JSON.parse(payloadStr);
201 201  
202 -var deviceName = metadata.topic.split("/")[3];
203 203  // decode payload to JSON
204 -var deviceType = 'sensor';
119 +var objdata = {};
120 +var obj1 = {};
121 +var data = decodeToJson(payload);
122 +var deviceName = data.IMEI;
123 +delete data.IMEI;
124 +var modelname = "Dragino " + data.Model;
125 +//var mod = data.mod
126 +delete data.Model;
127 +//delete data.mod
128 +var timestamp = new Date().getTime();
205 205  
206 -// Result object with device attributes/telemetry data
130 +for (var key in data) {
131 +
132 + if (Number(key)) {
133 + obj1[key] = data[key];
134 + obj1[key][obj1[key].length - 1] = Number(new Date(
135 + obj1[key][obj1[key].length - 1]));
136 +
137 + }
138 +//Alec submitted25/02/25
139 +//turn old key into new
140 + else if (key === "Reading") {
141 + objdata["reading"] = data[key];
142 + } else if (key === "work mode") {
143 + objdata["work_mode"] = data[key];
144 + } else if (key === "hum") {
145 + objdata["humidity"] = data[key];
146 + }else if (key === "hum2") {
147 + objdata["humidity2"] = data[key];
148 + } else if (key === "hum3") {
149 + objdata["humidity3"] = data[key];
150 + } else if (key === "tem") {
151 + objdata["temperature"] = data[key];
152 + } else if (key === "tem2") {
153 + objdata["temperature2"] = data[key];
154 + } else if (key === "tem3") {
155 + objdata["temperature3"] = data[key];
156 + } else if (key === "DS18B20_Temp") {
157 + objdata["temperature_pro"] = data[key];
158 + } else if (key === "ds18b20_temperature") {
159 + objdata["temperature_pro"] = data[key];
160 + } else if (key === "DS18B20_temperature_pro") {
161 + objdata["temperature_pro"] = data[key];
162 + } else if (key === "tdc send flag") {
163 + objdata["tdc_send_flag"] = data[key];
164 + } else if (key === "trigger mode") {
165 + objdata["trigger_mode"] = data[key];
166 + } else if (key === "soil dielectric constant") {
167 + objdata["soil_dielectric_constant"] = data[key];
168 + } else if (key === "door open num") {
169 + objdata["door_open_num"] = data[key];
170 + } else if (key === "door duration") {
171 + objdata["door_duration"] = data[key];
172 + } else if (key === "count time") {
173 + objdata["count_time"] = data[key];
174 + } else if (key === "last open time2") {
175 + objdata["last_open_time2"] = data[key];
176 + } else if (key === "last open time3") {
177 + objdata["last_open_time3"] = data[key];
178 + }
179 +//Alec submitted25/02/25
180 + else {
181 + objdata[key] = data[key]
182 + }
183 +}
184 +var listdata = [{
185 + "ts": timestamp,
186 + "values": objdata
187 +}]
188 +for (var key1 in obj1) {
189 + if (modelname == "Dragino RS485-NB") {
190 + listdata.push({
191 + "ts": obj1[key1][obj1[key1].length - 1],
192 + "values": {
193 + "Payload": obj1[key1][0],
194 + }
195 + })
196 + } else {
197 + listdata.push({
198 + "ts": obj1[key1][obj1[key1].length - 1],
199 + "values": {
200 + "values": obj1[key1]
201 + },
202 + })
203 + }
204 +}
207 207  var result = {
206 +
208 208   deviceName: deviceName,
209 - deviceType: deviceType,
208 + deviceType: modelname,
210 210   attributes: {
211 - integrationName: metadata['integrationName'],
210 + model: modelname,
211 + //customerName: "NB-CB",
212 + //groupName: "NB-CB",
213 + //integrationName: metadata['integrationName']
214 +
212 212   },
213 - telemetry: {
214 - temperature: data.temperature,
215 - humidity: data.humidity,
216 - }
217 -};
216 + telemetry: listdata
217 +}
218 218  
219 -/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
219 +function decodeToString(payload) {
220 + return String.fromCharCode.apply(String, payload);
221 +}
220 220  
223 +function decodeToJson(payload) {
224 + // covert payload to string.
225 + var str = decodeToString(payload);
226 +
227 + // parse string to JSON
228 + var data = JSON.parse(str);
229 + return data;
230 +}
231 +
221 221  return result;
233 +
222 222  {{/code}}
223 223  
224 224  
225 225  Click on the **Add** button.
226 226  
239 +[[image:uplink-data-converter.png||height="529" width="500"]]
227 227  
228 228  
229 -[[image:add-uplink-data-converter.png||height="529" width="500"]]
242 +You should see that the newly added **uplink data converter** is listed on the **Data Converters** page.
230 230  
231 -
232 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
233 -
234 234  [[image:data-converter-list-showing-uplink-dc.png]]
235 235  
236 236  
237 -
238 238  == 3.2 Downlink ==
239 239  
240 240  
241 241  On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
242 242  
252 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
243 243  
244 -[[image:create-new-converter-menu.png||width="500"]]
245 245  
246 -
247 -
248 248  The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
249 249  
250 -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.
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.
251 251  
252 252  
253 253  {{code language="JavaScript"}}
254 -// Encode downlink data from incoming Rule Engine message
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 +}
255 255  
256 -// msg - JSON message payload downlink message json
257 -// msgType - type of message, for ex. 'ATTRIBUTES_UPDATED', 'POST_TELEMETRY_REQUEST', etc.
258 -// metadata - list of key-value pairs with additional data about the message
259 -// integrationMetadata - list of key-value pairs with additional data defined in Integration executing this converter
260 -
261 -/** Encoder **/
262 -
263 -var data = {};
264 -
265 -// Process data from incoming message and metadata
266 -
267 -data.tempFreq = msg.temperatureUploadFrequency;
268 -data.humFreq = msg.humidityUploadFrequency;
269 -
270 -data.devSerialNumber = metadata['ss_serialNumber'];
271 -
272 272  // Result object with encoded downlink payload
273 273  var result = {
274 -
275 275   // downlink data content type: JSON, TEXT or BINARY (base64 format)
276 - contentType: "JSON",
276 + contentType: "BINARY",
277 277  
278 278   // downlink data
279 - data: JSON.stringify(data),
279 + data:hexToBase64(metadata.shared_value)
280 280  
281 281   // Optional metadata object presented in key/value format
282 - metadata: {
283 - topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
284 - }
282 + //metadata: {}
285 285  
286 286  };
287 287  
... ... @@ -291,30 +291,24 @@
291 291  
292 292  Click on the **Add** button.
293 293  
292 +[[image:downlink-data-converter.png||height="530" width="500"]]
294 294  
295 295  
296 -[[image:add-downlink-data-converter.png||height="529" width="500"]]
295 +You should see that the newly added **downlink data converter** is listed on the **Data Converters** page.
297 297  
297 +[[image:data-converter-list.png]]
298 298  
299 -You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
300 300  
301 -
302 -[[image:data-converters-list.png]]
303 -
304 -
305 -
306 306  = 4. Add Integration =
307 307  
308 308  
309 309  In the left navigation, click **Integrations center**, and then click **Integrations**.
310 310  
311 -
312 -[[image:integrations-list-empty.png]]
313 -
314 -
315 315  On the **Integrations** page, click on the '**+**' button.
316 316  
307 +[[image:data-converter-list-page.png]]
317 317  
309 +
318 318  The **Add integration** window appears.
319 319  
320 320  In the **Add integration** window, configure the following settings:
... ... @@ -324,13 +324,9 @@
324 324  
325 325  * **Integration type**: MQTT
326 326  * **Name**: MQTT integration NB/CB
327 -* **Enable integration**: YES
328 -* **Allows create devices or assets**: YES
329 329  
330 330  Click **Next** button.
331 331  
332 -
333 -
334 334  [[image:add-integration-basic-settings.png||height="511" width="500"]]
335 335  
336 336  
... ... @@ -341,11 +341,9 @@
341 341  
342 342  Click **Next** button.
343 343  
332 +[[image:add-integration-uplink-data-converter.png||width="500"]]
344 344  
345 345  
346 -[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
347 -
348 -
349 349  **Downlink data converter:**
350 350  
351 351  * Click on the **Select existing** button.
... ... @@ -353,231 +353,47 @@
353 353  
354 354  Click **Next** button.
355 355  
342 +[[image:add-integration-downlink-data-converter.png||height="510" width="500"]]
356 356  
357 357  
358 -[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
359 -
360 -
361 361  **Connection:**
362 362  
363 -* **Host**: Cluster URL (Eg. 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud)
364 -* **Port**: 8883
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)
365 365  * **Credentials**: Basic
366 -* **Enable SSL**: YES
367 -* **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
368 -* **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
369 -* **Topic:** tb/mqtt-integration-tutorial/sensors/+/telemetry (the + replaces any 'device name' and creates devices in the Entities -> Devices)
370 -* **QoS:** 0-At most once
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
371 371  
372 -[[image:add-integration-connection.png||height="511" width="500"]]
373 -
374 -
375 -Click on the **Advanced settings** button.
376 -
377 -* **Clean session:** YES
378 -* **Retained**: YES
379 -
380 -[[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
381 -
382 -
383 383  Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
384 384  
357 +[[image:add-integration-connection.png||width="500"]]
385 385  
386 -[[image:check-connection.png||height="83" width="300"]]
387 387  
360 +If the connection is successful, you will see the **Connected** message.
388 388  
389 -If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
362 +Click on the **Add** button.
390 390  
364 +[[image:add-connection-success.png||height="511" width="500"]]
391 391  
392 -[[image:connection-success.png||height="511" width="500"]]
393 393  
394 -
395 -Click on the **Add** button.
396 -
397 397  You should see that the newly added integration is listed on the **Integrations** page.
398 398  
399 399  Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
400 400  
371 +[[image:integrations-list-added-pending.png]]
401 401  
402 402  
403 -[[image:new-integration-pending.png]]
374 += 5. Verifying the receipt of data from the device =
404 404  
405 405  
406 -= 5. Verifying the receipt of data from virtual devices =
377 +On the terminal, issue the following MQTT command which simulates the device S31B-NB.
407 407  
408 -
409 -== 5.1 How does it work? ==
410 -
411 -
412 -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.
413 -
414 -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.
415 -
416 -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.
417 -
418 -
419 -**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.**
420 -
421 -
422 -For example, if you send two MQTT messages with different device names in the topic:
423 -
424 -1. v1/devices/**S31B-NB**/telemetry
425 -1. v1/devices/**LDS25-NB**/telemetry
426 -
427 -ThingsBoard will create two devices named **S31B-NB** and **LDS25-NB** in the **//Devices//** section.
428 -
429 -
430 -The MQTT payload format is as follows, which is common for all ~-~-NB and ~-~-CB series devices:
431 -
432 432  {{code language="none"}}
433 -{"temperature":10.4, "humidity":85}
380 +mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/S31B-NB/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:20}"
434 434  {{/code}}
435 435  
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.
436 436  
437 -== 5.2 Sending messages ==
438 -
439 -
440 -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.
441 -
442 -{{code language="none"}}
443 -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}'
444 -{{/code}}
445 -
446 -If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission.
447 -
448 -
449 -[[image:integration-active.png]]
450 -
451 -
452 -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**.
453 -
454 -
455 -[[image:device-provision-1.png]]
456 -
457 -
458 -Click on the device S31B-NB on the devices list to see its details.
459 -
460 -Then go to the **Latest telemetry** tab.
461 -
462 -You can see the fields temperature and humidity with the values you previously sent using the MQTT message.
463 -
464 -
465 -[[image:telemetry-1.png]]
466 -
467 -
468 -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//.
469 -
470 -
471 -[[image:telemetry-2.png]]
472 -
473 -
474 -Let's provision the second device named **LDS25-NB **with initial telemetry. Use the following MQTT message.
475 -
476 -
477 -{{code language="none"}}
478 -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}'
479 -{{/code}}
480 -
481 -Now, refresh the **Devices** page, and you will see the second device, **LDS25-NB**, which was recently provisioned.
482 -
483 -
484 -[[image:device-provision-2.png]]
485 -
486 -
487 -= 6. Creating a Dashboard =
488 -
489 -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.
490 -
491 -
492 -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.
493 -
494 -
495 -In **ThingsBoard**, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu.
496 -
497 -
498 -[[image:dashboard-1.png]]
499 -
500 -
501 -In the **Title** text box, enter **NB/CB Test Dashboard** as the title of the dashboard.
502 -
503 -Click on the **Add** button.
504 -
505 -
506 -[[image:dashboard-2.png||height="526" width="500"]]
507 -
508 -
509 -Click on the **Add widget / Add new widget** button.
510 -
511 -
512 -[[image:dashboard-3.png]]
513 -
514 -
515 -In the **Select widgets bundle** window, click **Charts**.
516 -
517 -
518 -[[image:dashboard-4.png||height="537" width="700"]]
519 -
520 -
521 -
522 -In the **Charts: select widget** window, click **Time series chart**.
523 -
524 -
525 -[[image:dashboard-5.png||height="525" width="700"]]
526 -
527 -
528 -Configure the **Time series chart** widget as follows:
529 -
530 -* **Datasource** - select S31B-NB device you provisioned.
531 -* **Series**:
532 -** **temperature** - you can see this key by default.
533 -** **humidity** - Click **Add series** button. Then add the **humidity** for the key and then type **%** as its unit.
534 -* Click on the **Add** button.
535 -
536 -[[image:timeseries-1.png||height="491" width="700"]]
537 -
538 -
539 -The time-series chart will appear in edit mode. Resize it by clicking and dragging the lower-right corner.
540 -
541 -Click the **Save** button to add the widget to the dashboard.
542 -
543 -
544 -[[image:timeseries-3.png||height="347" width="700"]]
545 -
546 -
547 -Now send the following MQTT messages from the terminal to simulate the data.
548 -
549 -
550 -{{code language="none"}}
551 -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}'
552 -
553 -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}'
554 -
555 -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}'
556 -
557 -{{/code}}
558 -
559 -The chart will update with the values in realtime, as shown in the below image.
560 -
561 -
562 -[[image:timeseries-4.png||height="316" width="700"]]
563 -
564 -
565 -= 7. Configure NB-IoT Sensor =
566 -
567 -
568 -Now, let's experiment with sending data to ThingsBoard using a real NB-IoT device. For example, we will use the **S31B-NB**.
569 -
570 -First, configure the NB-IoT device with the necessary MQTT settings using AT commands. Below is a list of AT commands you can use.
571 -
572 -
573 -**AT Commands**
574 -
575 -* **AT+PRO=3,3    **~/~/ Use MQTT to connect to ThingsBoard. Payload Type set to 3.
576 -* **AT+SUBTOPIC=<MQTT topic>**
577 -* **AT+PUBTOPIC=<MQTT topic>**
578 -* **AT+CLIENT=null**
579 -* **AT+UNAME=<MQTT Username>**
580 -* **AT+PWD=<MQTT Password>**
581 -* **AT+SERVADDR=<Broker address, Port>**
582 -
583 -Test your uplink by pressing the ACT button for 1 second.
385 +
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