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Last modified by Dilisi S on 2025/04/23 19:23
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edited by Dilisi S
on 2025/03/08 20:12
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edited by Dilisi S
on 2025/03/08 22:34
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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 20  
22 +To complete this tutorial, you need to have the following:
21 21  
24 +* ThingsBoard cloud account
25 +* HiveMQ Cloud account
22 22  
23 -= 2. Data Converters =
27 +== 2.1 ThingsBoard Cloud ==
24 24  
25 25  
30 +Go to [[https:~~/~~/thingsboard.io/>>https://thingsboard.io/]]
31 +
32 +Click on the **Try it now**.
33 +
34 +
35 +[[image:thingsboard-1.png]]
36 +
37 +
38 +Select either the **North America** or **Europe** region. Here, we use the Europe region.
39 +
40 +[[image:thingsboard-2.png]]
41 +
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**.
44 +
45 +Click on the **Sign up** button.
46 +
47 +[[image:thingsboard-3.png||height="651" width="500"]]
48 +
49 +
50 +You will be navigated to the following page.
51 +
52 +[[image:thingsboard-5.png||height="109" width="500"]]
53 +
54 +
55 +simultaneously, you will receive an email to confirm your email address. Click on the **Activate Your Account** button.
56 +
57 +
58 +[[image:thingsboard-4.png||height="249" width="500"]]
59 +
60 +
61 +Now losing to the account using your credentials:
62 +
63 +
64 +[[image:thingsboard-6.png||height="244" width="500"]]
65 +
66 +
67 +== 2.2 HiveMQ Cloud ==
68 +
69 +
70 +Go to [[https:~~/~~/www.hivemq.com>>https://www.hivemq.com]]
71 +
72 +Click on the **Start Free** button.
73 +
74 +[[image:hivwmq-1.png]]
75 +
76 +
77 +Click on the **Sign Up FREE Now** button in the **HIVEMQ CLOUD** section.
78 +
79 +[[image:hivemq-2.png]]
80 +
81 +
82 +Click on the **Sign Up** button.
83 +
84 +You can sign up with HiveMQ using your **GitHub**, **Google**, or **LinkedIn** account.
85 +
86 +If not, provide your **email address** and a **password** to create an account by clicking on the **Sign Up** button.
87 +
88 +
89 +[[image:hivemq-3.png]]
90 +
91 +
92 +You will receive an email to verify your email address. Click on the **Confirm my account** button.
93 +
94 +
95 +[[image:hivemq-4.jpg||height="889" width="400"]]
96 +
97 +
98 +You will be redirected to a page asking you to complete your profile. Once done, click the **Continue** button.
99 +
100 +
101 +[[image:hivemq-5.png||height="655" width="700"]]
102 +
103 +
104 +Select the CloudMQ Cloud plan you need. For testing purposes, select the **Serverless FREE** plan by clicking on the **Create Serverless Cluster** button.
105 +
106 +
107 +[[image:hivemq-6.png]]
108 +
109 +
110 +You will be navigated to the **Your Clusters** page. Click on the **Manage Cluster** button.
111 +
112 +[[image:hivemq-7.png]]
113 +
114 +
115 +In your cluster page, you can find some useful parameters you need to create a MQTT connection.
116 +
117 +**URL**: This is the host name. Click on the copy button to copy it.
118 +
119 +**Port**: 8883
120 +
121 +
122 +Click on the **Getting Started** tab to setup the username and the password as the connection credentials.
123 +
124 +
125 +[[image:hivemq-8.png]]
126 +
127 +
128 +In the '**Create Connection Credentials**' section, provide a **username** and **password**, then click the **Add** button.
129 +
130 +
131 +[[image:hivemq-9.png]]
132 +
133 +
134 +
135 +If everything is successful, you will see the following message.
136 +
137 +
138 +[[image:hivemq-10.png||height="206" width="500"]]
139 +
140 +
141 +You will need these MQTT connection parameters when configuring the MQTT integration in the '**Add Integration**' section.
142 +
143 +
144 += 3. Data Converters =
145 +
146 +
26 26  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.
27 27  
28 28  
29 -== 2.1 Uplink ==
150 +== 3.1 Uplink ==
30 30  
31 31  
32 32  In the left navigation, click **Integrations center**, and then click **Data converters**.
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156 156  
157 157  [[image:data-converters-list.png]]
158 158  
159 -(% class="wikigeneratedid" %)
160 160  
161 161  
162 -= 3. Add Integration =
282 += 4. Add Integration =
163 163  
164 164  
165 165  In the left navigation, click **Integrations center**, and then click **Integrations**.
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225 225  * **Topic:** tb/mqtt-integration-tutorial/sensors/+/telemetry (the + replaces any 'device name' and creates devices in the Entities -> Devices)
226 226  * **QoS:** 0-At most once
227 227  
228 -
229 229  [[image:add-integration-connection.png||height="511" width="500"]]
230 230  
231 231  
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240 240  Click on the **Check connection** button to verify the MQTT connection using the provided parameters.
241 241  
242 242  
243 -
244 244  [[image:check-connection.png||height="83" width="300"]]
245 245  
246 246  
247 -If the connection is successful, you will see the **Connected** message.
365 +If the connection is successful, you will see the **Connected** message. If not, check your connection parameters again.
248 248  
249 249  
250 250  [[image:connection-success.png||height="511" width="500"]]
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252 252  
253 253  Click on the **Add** button.
254 254  
255 -
256 -
257 257  You should see that the newly added integration is listed on the **Integrations** page.
258 258  
259 259  Since we haven't received data from a device yet, the integration **Status** is shown as **Pending.**
260 260  
261 -[[image:integrations-list-added-pending.png]]
262 262  
263 263  
264 -= 5. Verifying the receipt of data from the device =
379 +[[image:new-integration-pending.png]]
265 265  
266 266  
267 -On the terminal, issue the following MQTT command which simulates the device S31B-NB.
382 += 5. Verifying the receipt of data from virtual devices =
268 268  
384 +
385 +== 5.1 How does it work? ==
386 +
387 +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.
388 +
389 +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.
390 +
391 +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.
392 +
393 +
394 +**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.**
395 +
396 +
397 +For example, if you send two MQTT messages with different device names in the topic:
398 +
399 +1. v1/devices/**S31B-NB**/telemetry
400 +1. v1/devices/**S31B-CB**/telemetry
401 +
402 +ThingsBoard will create two devices named **S31B-NB** and **S31B-CB** in the **//Devices//** section.
403 +
404 +
405 +The MQTT payload format is as follows, for example:
406 +
269 269  {{code language="none"}}
270 -mosquitto_pub -d -q 1 -h mqtt.eu.thingsboard.cloud -p 1883 -t v1/devices/S31B-NB/telemetry -u "24vk3w9h7sqdld1me5eh" -m "{temperature:20}"
408 +{"temperature":10.4, "humidity":85}
271 271  {{/code}}
272 272  
411 +
412 +== 5.2 Sending messages ==
413 +
414 +
415 +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.
416 +
417 +{{code language="none"}}
418 +mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/SN-001/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":10.4, "humidity":85}'
419 +{{/code}}
420 +
273 273  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.
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