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Last modified by Dilisi S on 2025/04/23 19:23
From version 63.1
edited by Dilisi S
on 2025/03/06 13:29
Change comment: Mar 6 edits - part 2
To version 8.1
edited by Dilisi S
on 2025/03/03 02:26
Change comment: Uploaded new attachment "ThingsBoard-add-data-converter-uplink.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. Note that the **State** is now **'Active'** in 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 -
85 -[[image:virtual-device-active.png]]
86 -
87 -
88 -= Data Converters =
89 -
90 -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.
91 -
92 -
93 -== Uplink ==
94 -
95 -In the left navigation, click **Integrations center**, and then click **Data converters**.
96 -
97 -
98 -[[image:data-converter-list-page.png]]
99 -
100 -
101 -On the **Data converters** page, click on the ‘+’ button, and then click on the **Create new converter** from the dropdown menu.
102 -
103 -
104 -[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
105 -
106 -
107 -The **Add data converter** window will appear. Name it ‘**MQTT Uplink Converter NB/CB**’ and select the Type as **Uplink**.
108 -
109 -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.
110 -
111 -{{code language="JavaScript"}}
112 -//Version: 0.1
113 -// decode payload to string
114 -var payloadStr = decodeToString(payload);
115 -
116 -// decode payload to JSON
117 -var objdata = {};
118 -var obj1 = {};
119 -var data = decodeToJson(payload);
120 -var deviceName = data.IMEI;
121 -delete data.IMEI;
122 -var modelname = "Dragino " + data.Model;
123 -//var mod = data.mod
124 -delete data.Model;
125 -//delete data.mod
126 -var timestamp = new Date().getTime();
127 -
128 -for (var key in data) {
129 -
130 - if (Number(key)) {
131 - obj1[key] = data[key];
132 - obj1[key][obj1[key].length - 1] = Number(new Date(
133 - obj1[key][obj1[key].length - 1]));
134 -
135 - }
136 -//Alec submitted25/02/25
137 -//turn old key into new
138 - else if (key === "Reading") {
139 - objdata["reading"] = data[key];
140 - } else if (key === "work mode") {
141 - objdata["work_mode"] = data[key];
142 - } else if (key === "hum") {
143 - objdata["humidity"] = data[key];
144 - }else if (key === "hum2") {
145 - objdata["humidity2"] = data[key];
146 - } else if (key === "hum3") {
147 - objdata["humidity3"] = data[key];
148 - } else if (key === "tem") {
149 - objdata["temperature"] = data[key];
150 - } else if (key === "tem2") {
151 - objdata["temperature2"] = data[key];
152 - } else if (key === "tem3") {
153 - objdata["temperature3"] = data[key];
154 - } else if (key === "DS18B20_Temp") {
155 - objdata["temperature_pro"] = data[key];
156 - } else if (key === "ds18b20_temperature") {
157 - objdata["temperature_pro"] = data[key];
158 - } else if (key === "DS18B20_temperature_pro") {
159 - objdata["temperature_pro"] = data[key];
160 - } else if (key === "tdc send flag") {
161 - objdata["tdc_send_flag"] = data[key];
162 - } else if (key === "trigger mode") {
163 - objdata["trigger_mode"] = data[key];
164 - } else if (key === "soil dielectric constant") {
165 - objdata["soil_dielectric_constant"] = data[key];
166 - } else if (key === "door open num") {
167 - objdata["door_open_num"] = data[key];
168 - } else if (key === "door duration") {
169 - objdata["door_duration"] = data[key];
170 - } else if (key === "count time") {
171 - objdata["count_time"] = data[key];
172 - } else if (key === "last open time2") {
173 - objdata["last_open_time2"] = data[key];
174 - } else if (key === "last open time3") {
175 - objdata["last_open_time3"] = data[key];
176 - }
177 -//Alec submitted25/02/25
178 - else {
179 - objdata[key] = data[key]
180 - }
181 -}
182 -var listdata = [{
183 - "ts": timestamp,
184 - "values": objdata
185 -}]
186 -for (var key1 in obj1) {
187 - if (modelname == "Dragino RS485-NB") {
188 - listdata.push({
189 - "ts": obj1[key1][obj1[key1].length - 1],
190 - "values": {
191 - "Payload": obj1[key1][0],
192 - }
193 - })
194 - } else {
195 - listdata.push({
196 - "ts": obj1[key1][obj1[key1].length - 1],
197 - "values": {
198 - "values": obj1[key1]
199 - },
200 - })
201 - }
202 -}
203 -var result = {
204 -
205 - deviceName: deviceName,
206 - deviceType: modelname,
207 - attributes: {
208 - model: modelname,
209 - //customerName: "NB-CB",
210 - //groupName: "NB-CB",
211 - //integrationName: metadata['integrationName']
212 -
213 - },
214 - telemetry: listdata
215 -}
216 -
217 -function decodeToString(payload) {
218 - return String.fromCharCode.apply(String, payload);
219 -}
220 -
221 -function decodeToJson(payload) {
222 - // covert payload to string.
223 - var str = decodeToString(payload);
224 -
225 - // parse string to JSON
226 - var data = JSON.parse(str);
227 - return data;
228 -}
229 -
230 -return result;
231 -
232 -{{/code}}
233 -
234 -Click on the **Add** button.
235 -
236 -
237 -[[image:uplink-data-converter.png||height="529" width="500"]]
238 -
239 -
240 -
241 -You should see that the newly added **uplink data converter** is listed on the **Data Converters** page.
242 -
243 -
244 -[[image:data-converter-list-showing-uplink-dc.png]]
245 -
246 -
247 -== Downlink ==
248 -
249 -On the **Data converters** page, click on the ‘**+**’ button, and then click on the **Create new converter** from the dropdown menu.
250 -
251 -
252 -[[image:ThingsBoard-new-data-converter.png||height="282" width="500"]]
253 -
254 -
255 -The **Add data converter** window will appear. Name it ‘**MQTT Downlink Converter NB/CB**’ and select the Type as **Downlink**.
256 -
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.
258 -
259 -
260 -{{code language="JavaScript"}}
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('');
268 268  
269 - // 使用btoa进行base64编码
270 - return btoa(binaryString);
271 -}
272 -
273 -// Result object with encoded downlink payload
274 -var result = {
275 - // downlink data content type: JSON, TEXT or BINARY (base64 format)
276 - contentType: "BINARY",
277 -
278 - // downlink data
279 - data:hexToBase64(metadata.shared_value)
280 -
281 - // Optional metadata object presented in key/value format
282 - //metadata: {}
283 -
284 -};
285 -
286 -return result;
287 -{{/code}}
288 -
289 -
290 -Click on the **Add** button.
291 -
292 -
293 -[[image:downlink-data-converter.png||height="530" width="500"]]
294 -
295 -
296 -
297 -You should see that the newly added **downlink data converter** is listed on the **Data Converters** page.
298 -
299 -
300 -[[image:data-converter-list.png]]
301 -
302 -
303 -= Add Integration =
304 -
305 -In the left navigation, click **Integrations center**, and then click **Integrations**.
306 -
307 -On the **Integrations** page, click on the '**+**' button.
308 -
309 -
310 -[[image:data-converter-list-page.png]]
311 -
312 -
313 -The **Add integration** window appears.
314 -
315 -In the **Add integration** window, configure the following settings:
316 -
317 -
318 -**Basic settings:**
319 -
320 -* **Integration type**: MQTT
321 -* **Name**: MQTT integration NB/CB
322 -
323 -Click **Next** button.
324 -
325 -
326 -[[image:add-integration-basic-settings.png||height="511" width="500"]]
327 -
328 -
329 -
330 -**Uplink data converter:**
331 -
332 -* Click on the **Select existing** button.
333 -* **Uplink data converter**: Select **MQTT Uplink Converter NB/CB **from the dropdown list.
334 -
335 -Click **Next** button.
336 -
337 -
338 -[[image:add-integration-uplink-data-converter.png||width="500"]]
339 -
340 -
341 -
342 -**Downlink data converter:**
343 -
344 -* Click on the **Select existing** button.
345 -* **Downlink data converter**: Select **MQTT Downlink Converter NB/CB **from the dropdown list.
346 -
347 -Click **Next** button.
348 -
349 -
350 -[[image:add-integration-downlink-data-converter.png||height="510" width="500"]]
351 -
352 -
353 -
354 -**Connection:**
355 -
356 -* **Host**: mqtt.eu.thingsboard.cloud (This is the host name you copied from the device - See section xxxxx for more information)
357 -* **Port**: 1883 (This is the port number you copied from the device - See section xxxxx for more information)
358 -* **Credentials**: Basic
359 -* **Username**: Access token (This is the access token you copied from the device)
360 -* **Password** - Leave it as blank
361 -* **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')
362 -* **QoS** - 0-At most once
363 -
364 -Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
365 -
366 -
367 -[[image:add-integration-connection.png||width="500"]]
368 -
369 -
370 -If the connection is successful, you will see the **Connected** message.
371 -
372 -Click on the **Add** button.
373 -
374 -
375 -[[image:add-connection-success.png||height="511" width="500"]]
376 -
377 -
378 -You should see that the newly added integration is listed on the **Integrations** page.
379 -
380 -Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
381 -
382 -
383 -
384 -[[image:integrations-list-added-pending.png]]
385 -
386 -
387 -= Verifying the receipt of data from the device =
388 -
389 -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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