Changes for page ThingsBoard
Last modified by Dilisi S on 2025/04/02 02:09
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... ... @@ -384,7 +384,6 @@ 384 384 385 385 == 5.1 How does it work? == 386 386 387 - 388 388 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. 389 389 390 390 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. ... ... @@ -398,12 +398,12 @@ 398 398 For example, if you send two MQTT messages with different device names in the topic: 399 399 400 400 1. v1/devices/**S31B-NB**/telemetry 401 -1. v1/devices/** LDS25-NB**/telemetry400 +1. v1/devices/**S31B-CB**/telemetry 402 402 403 -ThingsBoard will create two devices named **S31B-NB** and LDS25-NB** in the **//Devices//** section.402 +ThingsBoard will create two devices named **S31B-NB** and **S31B-CB** in the **//Devices//** section. 404 404 405 405 406 -The MQTT payload format is as follows, which is commonfor all ~-~-NB and ~-~-CB series devices:405 +The MQTT payload format is as follows, for example: 407 407 408 408 {{code language="none"}} 409 409 {"temperature":10.4, "humidity":85} ... ... @@ -416,73 +416,7 @@ 416 416 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. 417 417 418 418 {{code language="none"}} 419 -mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/S 31B-NB/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":10.4, "humidity":85}'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}' 420 420 {{/code}} 421 421 422 -If the integration was performed without errors, the status of the integration changes to 'Active' after the first telemetry transmission. 423 - 424 - 425 -[[image:integration-active.png]] 426 - 427 - 428 -Also, a new device named **S31B-NB** will appear under **//Entities -> Devices -> All//**. This means the first MQTT message triggers ThingsBoard to provision a device named **S31B-NB**. 429 - 430 - 431 -[[image:device-provision-1.png]] 432 - 433 - 434 -Click on the device S31B-NB on the devices list to see its details. 435 - 436 -Then go to the **Latest telemetry** tab. 437 - 438 -You can see the fields temperature and humidity with the values you previously sent using the MQTT message. 439 - 440 - 441 -[[image:telemetry-1.png]] 442 - 443 - 444 -Now, change the values of the fields and send the MQTT message again. For example, set temperature to 20 and humidity to 70. Observe how the values update in //Latest Telemetry//. 445 - 446 - 447 -[[image:telemetry-2.png]] 448 - 449 - 450 -Let's provision the second device named **LDS25-NB **with initial telemetry. Use the following MQTT message. 451 - 452 - 453 -{{code language="none"}} 454 -mosquitto_pub -d -q 1 -h 011731f7928541588a6cdfbbedfc63f4.s1.eu.hivemq.cloud -p 8883 -t "tb/mqtt-integration-tutorial/sensors/LDS25-NB/telemetry" -u "pradeeka" -P "Kalpani123@" -m '{"temperature":11, "humidity":87}' 455 -{{/code}} 456 - 457 -Now, refresh the **Devices** page, and you will see the second device, **LDS25-NB**, which was recently provisioned. 458 - 459 - 460 -[[image:device-provision-2.png]] 461 - 462 - 463 -= 6. Creating a Dashboard = 464 - 465 - 466 -In ThingsBoard, from the left navigation menu, click **Dashboards**. Then, click the **+** button and select **Create new dashboard** from the dropdown menu. 467 - 468 - 469 -[[image:dashboard-1.png]] 470 - 471 - 472 -In the **Title** text box, enter **NB/CB Test Dashboard** as the title of the dashboard. 473 - 474 -Click on the **Add** button. 475 - 476 - 477 -[[image:dashboard-2.png||height="526" width="500"]] 478 - 479 - 480 -Click on the **Add widget / Add new widget** button. 481 - 482 - 483 -[[image:dashboard-3.png]] 484 - 485 - 486 - 487 - 488 - 421 +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.