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Wiki source code of ThingsBoard

Version 61.1 by Dilisi S on 2025/03/06 13:08
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1 **Table of Contents:**
2
3 {{toc/}}
4
5 {{warning}}
6 Draft Document
7 {{/warning}}
8
9 = Introduction =
10
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.
12
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**.
14
15
16 = Add New Device =
17
18 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.
19
20 In the left navigation, click **Entities** and then click **Devices**.
21
22
23 [[image:device-list-empty.png]]
24
25
26 On the **Devices **page, click on the ‘**+**’ button, and then click on the **Add new device **from the dropdown menu.
27
28
29 [[image:ThingsBoard-add-new-device.png||height="279" width="500"]]
30
31
32 The **Add new device** window appears. Name the device, for example '**Virtual NB/CB device**'.
33
34 Click on the **Next: Credentials** button.
35
36
37 [[image:new-device-device-details.png||height="529" width="500"]]
38
39
40 Click the **Access token** button if it is not selected by default.
41
42 Copy the **Access token** to a text editor, as you will need it in the section **'Sending data from an MQTT client'**.
43
44 Click on the **Add** button.
45
46 [[image:new-device-access-token.png||height="528" width="500"]]
47
48
49 Click on the **MQTT** button.
50
51 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.
52
53 Copy the MQTT pub command in the '**Execute the following command**' section.
54
55 {{code language="none"}}
56 mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/me/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:25}"
57 {{/code}}
58
59 Note that the **State** is still shown as **'Inactive'** in the **Latest telemetry** section.
60
61 [[image:new-device-check-connectivity.png||height="522" width="500"]]
62
63
64 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.
65
66
67 [[image:mqtt-command-1.png||height="228" width="700"]]
68
69
70 If the command is successful, you can see the telemetry data you sent under the **Latest telemetry** section.
71
72
73 [[image:new-device-telemetry-test.png||height="520" width="500"]]
74
75
76 Send the same command again, only changing the **temperature** value, to see how the **Latest telemetry** section updates its data.
77
78 Once you are done experimenting with this, close the window by clicking the **Close** button.
79
80
81 [[image:mqtt-command-2.png||height="227" width="700"]]
82
83
84 = Data Converters =
85
86 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.
87
88
89 == Uplink ==
90
91 In the left navigation, click **Integrations center**, and then click **Data converters**.
92
93
94 [[image:data-converter-list-page.png]]
95
96
97 On the **Data converters** page, click on the ‘+’ button, and then click on the **Create new converter** from the dropdown menu.
98
99
100 [[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
101
102
103 The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
104
105 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.
106
107 {{code language="JavaScript"}}
108 //Version: 0.1
109 // decode payload to string
110 var payloadStr = decodeToString(payload);
111
112 // decode payload to JSON
113 var objdata = {};
114 var obj1 = {};
115 var data = decodeToJson(payload);
116 var deviceName = data.IMEI;
117 delete data.IMEI;
118 var modelname = "Dragino " + data.Model;
119 //var mod = data.mod
120 delete data.Model;
121 //delete data.mod
122 var timestamp = new Date().getTime();
123
124 for (var key in data) {
125
126 if (Number(key)) {
127 obj1[key] = data[key];
128 obj1[key][obj1[key].length - 1] = Number(new Date(
129 obj1[key][obj1[key].length - 1]));
130
131 }
132 //Alec submitted25/02/25
133 //turn old key into new
134 else if (key === "Reading") {
135 objdata["reading"] = data[key];
136 } else if (key === "work mode") {
137 objdata["work_mode"] = data[key];
138 } else if (key === "hum") {
139 objdata["humidity"] = data[key];
140 }else if (key === "hum2") {
141 objdata["humidity2"] = data[key];
142 } else if (key === "hum3") {
143 objdata["humidity3"] = data[key];
144 } else if (key === "tem") {
145 objdata["temperature"] = data[key];
146 } else if (key === "tem2") {
147 objdata["temperature2"] = data[key];
148 } else if (key === "tem3") {
149 objdata["temperature3"] = data[key];
150 } else if (key === "DS18B20_Temp") {
151 objdata["temperature_pro"] = data[key];
152 } else if (key === "ds18b20_temperature") {
153 objdata["temperature_pro"] = data[key];
154 } else if (key === "DS18B20_temperature_pro") {
155 objdata["temperature_pro"] = data[key];
156 } else if (key === "tdc send flag") {
157 objdata["tdc_send_flag"] = data[key];
158 } else if (key === "trigger mode") {
159 objdata["trigger_mode"] = data[key];
160 } else if (key === "soil dielectric constant") {
161 objdata["soil_dielectric_constant"] = data[key];
162 } else if (key === "door open num") {
163 objdata["door_open_num"] = data[key];
164 } else if (key === "door duration") {
165 objdata["door_duration"] = data[key];
166 } else if (key === "count time") {
167 objdata["count_time"] = data[key];
168 } else if (key === "last open time2") {
169 objdata["last_open_time2"] = data[key];
170 } else if (key === "last open time3") {
171 objdata["last_open_time3"] = data[key];
172 }
173 //Alec submitted25/02/25
174 else {
175 objdata[key] = data[key]
176 }
177 }
178 var listdata = [{
179 "ts": timestamp,
180 "values": objdata
181 }]
182 for (var key1 in obj1) {
183 if (modelname == "Dragino RS485-NB") {
184 listdata.push({
185 "ts": obj1[key1][obj1[key1].length - 1],
186 "values": {
187 "Payload": obj1[key1][0],
188 }
189 })
190 } else {
191 listdata.push({
192 "ts": obj1[key1][obj1[key1].length - 1],
193 "values": {
194 "values": obj1[key1]
195 },
196 })
197 }
198 }
199 var result = {
200
201 deviceName: deviceName,
202 deviceType: modelname,
203 attributes: {
204 model: modelname,
205 //customerName: "NB-CB",
206 //groupName: "NB-CB",
207 //integrationName: metadata['integrationName']
208
209 },
210 telemetry: listdata
211 }
212
213 function decodeToString(payload) {
214 return String.fromCharCode.apply(String, payload);
215 }
216
217 function decodeToJson(payload) {
218 // covert payload to string.
219 var str = decodeToString(payload);
220
221 // parse string to JSON
222 var data = JSON.parse(str);
223 return data;
224 }
225
226 return result;
227
228 {{/code}}
229
230 Click on the **Add** button.
231
232
233 [[image:uplink-data-converter.png||height="529" width="500"]]
234
235
236
237 You should see that the newly added **uplink data converter** is listed on the **Data Converters** page.
238
239
240 [[image:data-converter-list-showing-uplink-dc.png]]
241
242
243 == Downlink ==
244
245 On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
246
247
248 [[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
249
250
251 The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
252
253 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.
254
255
256 {{code language="JavaScript"}}
257 function hexToBase64(hexString) {
258 // 将16进制字符串两个字符转换为一个字节
259 var bytes = hexString.match(/.{2}/g);
260 // 对每个字节进行解析，并转换为对应的字符
261 var binaryString = bytes.map(function(byte) {
262 return String.fromCharCode(parseInt(byte, 16));
263 }).join('');
264
265 // 使用btoa进行base64编码
266 return btoa(binaryString);
267 }
268
269 // Result object with encoded downlink payload
270 var result = {
271 // downlink data content type: JSON, TEXT or BINARY (base64 format)
272 contentType: "BINARY",
273
274 // downlink data
275 data:hexToBase64(metadata.shared_value)
276
277 // Optional metadata object presented in key/value format
278 //metadata: {}
279
280 };
281
282 return result;
283 {{/code}}
284
285
286 Click on the **Add** button.
287
288
289 [[image:downlink-data-converter.png||height="530" width="500"]]
290
291
292
293 You should see that the newly added **downlink data converter** is listed on the **Data Converters** page.
294
295
296 [[image:data-converter-list.png]]
297
298
299 = Add Integration =
300
301 In the left navigation, click **Integrations center**, and then click **Integrations**.
302
303 On the **Integrations** page, click on the '**+**' button.
304
305
306 [[image:data-converter-list-page.png]]
307
308
309 The **Add integration** window appears.
310
311 In the **Add integration** window, configure the following settings:
312
313
314 **Basic settings:**
315
316 * **Integration type**: MQTT
317 * **Name**: MQTT integration NB/CB
318
319 Click **Next** button.
320
321
322 [[image:add-integration-basic-settings.png||height="511" width="500"]]
323
324
325
326 **Uplink data converter:**
327
328 * Click on the **Select existing** button.
329 * **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
330
331 Click **Next** button.
332
333
334 [[image:add-integration-uplink-data-converter.png||width="500"]]
335
336
337
338 **Downlink data converter:**
339
340 * Click on the **Select existing** button.
341 * **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
342
343 Click **Next** button.
344
345
346 [[image:add-integration-downlink-data-converter.png||height="510" width="500"]]
347
348
349
350 **Connection:**
351
352 * **Host**: mqtt.eu.thingsboard.cloud (This is the host name you copied from the device - See section xxxxx for more information)
353 * **Port**: 1883 (This is the port number you copied from the device - See section xxxxx for more information)
354 * **Credentials**: Basic
355 * **Username**: Access token (This is the access token you copied from the device)
356 * **Password** - Leave it as blank
357 * **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')
358 * **QoS** - 0-At most once
359
360 Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
361
362
363 [[image:add-integration-connection.png||width="500"]]
364
365
366 If the connection is successful, you will see the **Connected** message.
367
368 Click on the **Add** button.
369
370
371 [[image:add-connection-success.png||height="511" width="500"]]
372
373
374 You should see that the newly added integration is listed on the **Integrations** page.
375
376 Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
377
378
379
380 [[image:integrations-list-added-pending.png]]
381
382
383 = Verifying the receipt of data from the device =
384
385 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.