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Last modified by Dilisi S on 2025/04/23 19:23
From version 62.1
edited by Dilisi S
on 2025/03/06 13:28
Change comment: Uploaded new attachment "virtual-device-active.png", version {1}
To version 9.1
edited by Dilisi S
on 2025/03/03 02:28
Change comment: Uploaded new attachment "ThingsBoard-add-data-converter-downlink.png", version {1}

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2 2  
3 3  {{toc/}}
4 4  
5 -{{warning}}
6 -Draft Document
7 -{{/warning}}
8 8  
9 9  = Introduction =
10 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.
8 +This document guides you on integrating Dragino -NB and -CB series devices 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 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('');
264 264  
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.
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