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Last modified by Dilisi S on 2025/04/23 19:23
From version 125.1
edited by Dilisi S
on 2025/03/08 20:47
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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 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 -* HiveMQ Cloud account
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.
26 26  
27 -== 2.1 ThingsBoard Cloud ==
25 +In the left navigation, click **Entities** and then click **Devices**.
28 28  
27 +[[image:device-list-empty.png]]
29 29  
30 -Go to [[https:~~/~~/thingsboard.io/>>https://thingsboard.io/]]
31 31  
32 -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.
33 33  
32 +[[image:ThingsBoard-add-new-device.png||height="279" width="500"]]
34 34  
35 -[[image:thingsboard-1.png]]
36 36  
35 +The **Add new device** window appears. Name the device, for example '**Virtual NB/CB device**'.
37 37  
38 -Select either the **North America** or **Europe** region. Here, we use the Europe region.
37 +Click on the **Next: Credentials** button.
39 39  
40 -[[image:thingsboard-2.png]]
39 +[[image:new-device-device-details.png||height="529" width="500"]]
41 41  
42 42  
43 -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.
44 44  
45 -[[image:thingsboard-3.png||height="651" width="500"]]
44 +Copy the **Access token** to a text editor, as you will need it in the section **'Sending data from an MQTT client'**.
46 46  
46 +Click on the **Add** button.
47 47  
48 -== 2.2 HiveMQ Cloud ==
48 +[[image:new-device-access-token.png||height="528" width="500"]]
49 49  
50 50  
51 -Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
51 +Click on the **MQTT** button.
52 52  
53 -Click on the **Start Free** button.
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.
54 54  
55 -[[image:hivwmq-1.png]]
55 +Copy the MQTT pub command in the '**Execute the following command**' section.
56 56  
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}}
57 57  
58 -Click on the **Sign Up FREE Now** button in the **HIVEMQ CLOUD** section.
61 +Note that the **State** is still shown as **'Inactive'** in the **Latest telemetry** section.
59 59  
60 -[[image:hivemq-2.png]]
63 +[[image:new-device-check-connectivity.png||height="522" width="500"]]
61 61  
62 62  
63 -Click on the **Sign Up** button.
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.
64 64  
65 -You can sign up with HiveMQ using your **GitHub**, **Google**, or **LinkedIn** account.
66 66  
67 -If not, provide your **email address** and a **password** to create an account by clicking on the **Sign Up** button.
69 +[[image:mqtt-command-1.png||height="228" width="700"]]
68 68  
69 69  
70 -[[image:hivemq-3.png]]
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.
71 71  
72 72  
73 -You will receive an email to verify your email address. Click on the **Confirm my account** button.
75 +[[image:new-device-telemetry-test.png||height="520" width="500"]]
74 74  
75 75  
76 -[[image:hivemq-4.jpg||height="889" width="400"]]
78 +Send the same command again, only changing the **temperature** value, to see how the **Latest telemetry** section updates its data.
77 77  
80 +Once you are done experimenting with this, close the window by clicking the **Close** button.
78 78  
79 -You will be redirected to a page asking you to complete your profile. Once done, click the **Continue** button.
80 80  
83 +[[image:mqtt-command-2.png||height="227" width="700"]]
81 81  
82 -[[image:hivemq-5.png||height="655" width="700"]]
83 83  
84 84  
85 -Select the CloudMQ Cloud plan you need. For testing purposes, select the **Serverless FREE** plan by clicking on the **Create Serverless Cluster** button.
87 +[[image:virtual-device-active.png]]
86 86  
87 87  
88 -[[image:hivemq-6.png]]
89 -
90 -
91 -You will be navigated to the **Your Clusters** page. Click on the **Manage Cluster** button.
92 -
93 -[[image:hivemq-7.png]]
94 -
95 -
96 -In your cluster page, you can find some useful parameters you need to create a MQTT connection.
97 -
98 -**URL**: This is the host name. Click on the copy button to copy it.
99 -
100 -**Port**: 8883
101 -
102 -
103 -Click on the **Getting Started** tab to setup the username and the password as the connection credentials.
104 -
105 -
106 -[[image:hivemq-8.png]]
107 -
108 -
109 -In the '**Create Connection Credentials**' section, provide a **username** and **password**, then click the **Add** button.
110 -
111 -
112 -[[image:hivemq-9.png]]
113 -
114 -
115 -
116 -If everything is successful, you will see the following message.
117 -
118 -
119 -[[image:hivemq-10.png||height="206" width="500"]]
120 -
121 -
122 -You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
123 -
124 -
125 125  = 3. Data Converters =
126 126  
127 127  
... ... @@ -133,112 +133,188 @@
133 133  
134 134  In the left navigation, click **Integrations center**, and then click **Data converters**.
135 135  
101 +[[image:data-converter-list-page.png]]
136 136  
137 137  
138 -[[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.
139 139  
106 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
140 140  
141 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
142 142  
143 -
144 -
145 -[[image:create-new-converter-menu.png||height="259" width="500"]]
146 -
147 -
148 148  The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
149 149  
150 -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.
151 151  
152 152  {{code language="JavaScript"}}
153 -/** Decoder **/
154 -
114 +//Version: 0.1
155 155  // decode payload to string
156 156  var payloadStr = decodeToString(payload);
157 -var data = JSON.parse(payloadStr);
158 158  
159 -var deviceName = metadata.topic.split("/")[3];
160 160  // decode payload to JSON
161 -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();
162 162  
163 -// 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 +}
164 164  var result = {
206 +
165 165   deviceName: deviceName,
166 - deviceType: deviceType,
208 + deviceType: modelname,
167 167   attributes: {
168 - integrationName: metadata['integrationName'],
210 + model: modelname,
211 + //customerName: "NB-CB",
212 + //groupName: "NB-CB",
213 + //integrationName: metadata['integrationName']
214 +
169 169   },
170 - telemetry: {
171 - temperature: data.temperature,
172 - humidity: data.humidity,
173 - }
174 -};
216 + telemetry: listdata
217 +}
175 175  
176 -/** Helper functions 'decodeToString' and 'decodeToJson' are already built-in **/
219 +function decodeToString(payload) {
220 + return String.fromCharCode.apply(String, payload);
221 +}
177 177  
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 +
178 178  return result;
233 +
179 179  {{/code}}
180 180  
181 181  
182 182  Click on the **Add** button.
183 183  
239 +[[image:uplink-data-converter.png||height="529" width="500"]]
184 184  
185 185  
186 -[[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.
187 187  
188 -
189 -You should see that the newly added **MQTT Uplink converter **NB/CB is listed on the **Data Converters** page.
190 -
191 191  [[image:data-converter-list-showing-uplink-dc.png]]
192 192  
193 193  
194 -
195 195  == 3.2 Downlink ==
196 196  
197 197  
198 198  On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
199 199  
252 +[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
200 200  
201 -[[image:create-new-converter-menu.png||width="500"]]
202 202  
203 -
204 -
205 205  The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
206 206  
207 -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.
208 208  
209 209  
210 210  {{code language="JavaScript"}}
211 -// 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 +}
212 212  
213 -// msg - JSON message payload downlink message json
214 -// msgType - type of message, for ex. 'ATTRIBUTES_UPDATED', 'POST_TELEMETRY_REQUEST', etc.
215 -// metadata - list of key-value pairs with additional data about the message
216 -// integrationMetadata - list of key-value pairs with additional data defined in Integration executing this converter
217 -
218 -/** Encoder **/
219 -
220 -var data = {};
221 -
222 -// Process data from incoming message and metadata
223 -
224 -data.tempFreq = msg.temperatureUploadFrequency;
225 -data.humFreq = msg.humidityUploadFrequency;
226 -
227 -data.devSerialNumber = metadata['ss_serialNumber'];
228 -
229 229  // Result object with encoded downlink payload
230 230  var result = {
231 -
232 232   // downlink data content type: JSON, TEXT or BINARY (base64 format)
233 - contentType: "JSON",
276 + contentType: "BINARY",
234 234  
235 235   // downlink data
236 - data: JSON.stringify(data),
279 + data:hexToBase64(metadata.shared_value)
237 237  
238 238   // Optional metadata object presented in key/value format
239 - metadata: {
240 - topic: metadata['deviceType']+'/'+metadata['deviceName']+'/upload'
241 - }
282 + //metadata: {}
242 242  
243 243  };
244 244  
... ... @@ -248,30 +248,24 @@
248 248  
249 249  Click on the **Add** button.
250 250  
292 +[[image:downlink-data-converter.png||height="530" width="500"]]
251 251  
252 252  
253 -[[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.
254 254  
297 +[[image:data-converter-list.png]]
255 255  
256 -You should see that the newly added **MQTT Downlink** Converter NB/CB is listed on the **Data Converters** page.
257 257  
258 -
259 -[[image:data-converters-list.png]]
260 -
261 -
262 -
263 263  = 4. Add Integration =
264 264  
265 265  
266 266  In the left navigation, click **Integrations center**, and then click **Integrations**.
267 267  
268 -
269 -[[image:integrations-list-empty.png]]
270 -
271 -
272 272  On the **Integrations** page, click on the '**+**' button.
273 273  
307 +[[image:data-converter-list-page.png]]
274 274  
309 +
275 275  The **Add integration** window appears.
276 276  
277 277  In the **Add integration** window, configure the following settings:
... ... @@ -281,13 +281,9 @@
281 281  
282 282  * **Integration type**: MQTT
283 283  * **Name**: MQTT integration NB/CB
284 -* **Enable integration**: YES
285 -* **Allows create devices or assets**: YES
286 286  
287 287  Click **Next** button.
288 288  
289 -
290 -
291 291  [[image:add-integration-basic-settings.png||height="511" width="500"]]
292 292  
293 293  
... ... @@ -298,11 +298,9 @@
298 298  
299 299  Click **Next** button.
300 300  
332 +[[image:add-integration-uplink-data-converter.png||width="500"]]
301 301  
302 302  
303 -[[image:add-integration-uplink-data-converter.png||height="511" width="500"]]
304 -
305 -
306 306  **Downlink data converter:**
307 307  
308 308  * Click on the **Select existing** button.
... ... @@ -310,56 +310,38 @@
310 310  
311 311  Click **Next** button.
312 312  
342 +[[image:add-integration-downlink-data-converter.png||height="510" width="500"]]
313 313  
314 314  
315 -[[image:add-integration-downlink-data-converter.png||height="511" width="500"]]
316 -
317 -
318 318  **Connection:**
319 319  
320 -* **Host**: Cluster URL (Eg. 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud)
321 -* **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)
322 322  * **Credentials**: Basic
323 -* **Enable SSL**: YES
324 -* **Username**: Username (from your HiveMQ Cloud Cluster with your credentials)
325 -* **Password:** Password (from your HiveMQ Cloud Cluster with your credentials)
326 -* **Topic:** tb/mqtt-integration-tutorial/sensors/+/telemetry (the + replaces any 'device name' and creates devices in the Entities -> Devices)
327 -* **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
328 328  
329 -[[image:add-integration-connection.png||height="511" width="500"]]
330 -
331 -
332 -Click on the **Advanced settings** button.
333 -
334 -* **Clean session:** NO
335 -* **Retained**: NO
336 -
337 -[[image:add-integration-connection-advanced-settings.png||height="510" width="500"]]
338 -
339 -
340 340  Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
341 341  
357 +[[image:add-integration-connection.png||width="500"]]
342 342  
343 -[[image:check-connection.png||height="83" width="300"]]
344 344  
360 +If the connection is successful, you will see the **Connected** message.
345 345  
346 -If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
362 +Click on the **Add** button.
347 347  
364 +[[image:add-connection-success.png||height="511" width="500"]]
348 348  
349 -[[image:connection-success.png||height="511" width="500"]]
350 350  
351 -
352 -Click on the **Add** button.
353 -
354 354  You should see that the newly added integration is listed on the **Integrations** page.
355 355  
356 356  Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
357 357  
371 +[[image:integrations-list-added-pending.png]]
358 358  
359 359  
360 -[[image:new-integration-pending.png]]
361 -
362 -
363 363  = 5. Verifying the receipt of data from the device =
364 364  
365 365  
... ... @@ -370,3 +370,5 @@
370 370  {{/code}}
371 371  
372 372  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.
384 +
385 +
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