Last modified by Mengting Qiu on 2025/03/08 11:33
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... ... @@ -303,7 +303,7 @@ 303 303 304 304 (% style="color:blue" %)**Subscribe** 305 305 306 -Data is published according to the following structure: **dtck~/~// ** 306 +Data is published according to the following structure: (% style="color:blue" %)**dtck~/~//**(%%)** ** 307 307 308 308 Subscribe to topics using this structure to receive messages via MQTT when readings (via API or MQTT) arrive in the Datacake Cloud. Messages are published whenever there is a change to a corresponding database field. 309 309 ... ... @@ -352,8 +352,10 @@ 352 352 353 353 === 3.5.1 Configure Node-Red === 354 354 355 + 355 355 [[image:image-20230802112413-29.png]] 356 356 358 + 357 357 [[image:image-20230802112413-30.png]] 358 358 359 359 ... ... @@ -366,7 +366,7 @@ 366 366 === 3.5.3 Configure NB-IoT Sensors === 367 367 368 368 369 -* (% style="color:blue" %)**AT+PRO=3,0(hex format) or 3,5(json format)**(%%) ~/~/Set to mqtt Server and Payload 371 +* (% style="color:blue" %)**AT+PRO=3,0(hex format) or 3,5(json format)**(%%) ~/~/ Set to mqtt Server and Payload 370 370 371 371 * (% style="color:blue" %)**AT+CLIENT=any value** 372 372 ... ... @@ -378,6 +378,8 @@ 378 378 379 379 * (% style="color:blue" %)**AT+SUBTOPIC=any value** 380 380 383 + 384 + 381 381 == 3.6 ThingsBoard.Cloud (via MQTT) == 382 382 383 383 === 3.6.1 Configure ThingsBoard === ... ... @@ -384,6 +384,7 @@ 384 384 385 385 ==== 3.6.1.1 Create Device ==== 386 386 391 + 387 387 Create a New Device in [[ThingsBoard>>url:https://thingsboard.cloud/]]. 388 388 389 389 [[image:image-20230802112413-32.png]] ... ... @@ -391,13 +391,14 @@ 391 391 392 392 ==== 3.6.1.2 Create Uplink & Downlink Converter ==== 393 393 399 + 394 394 (% style="color:blue" %)**Uplink Converter** 395 395 396 396 The purpose of the decoder function is to parse the incoming data and metadata to a format that ThingsBoard can consume. deviceName and deviceType are required, while attributes and telemetry are optional. Attributes and telemetry are flat key-value objects. Nested objects are not supported. 397 397 398 -To create an uplink converter go to the Integrations center -> Data converters page and click “plus” button. Name it “MQTT Uplink Converter” and select type 404 +To create an uplink converter go to the **Integrations center** -> **Data converters** page and click **“plus”** button. Name it **“MQTT Uplink Converter”** and select type "**Uplink"**. Use debug mode for now. 399 399 400 -[[image:image-20230802112413-33.png]] 406 +[[image:image-20230802112413-33.png||height="732" width="1302"]] 401 401 402 402 403 403 (% style="color:blue" %)**Downlink Converter** ... ... @@ -404,7 +404,7 @@ 404 404 405 405 The Downlink converter transforming outgoing RPC message and then the Integration sends it to external MQTT broke 406 406 407 -[[image:image-20230802112413-34.png]] 413 +[[image:image-20230802112413-34.png||height="734" width="1305"]] 408 408 409 409 (% style="color:red" %)**Note:Our device payload is already human readable data. Therefore, users do not need to write decoders. Simply create by default.** 410 410 ... ... @@ -412,15 +412,16 @@ 412 412 ==== 3.6.1.3 MQTT Integration Setup ==== 413 413 414 414 415 -Go to the Integrations center -> Integrations page and click **“plus”** icon to add a new integration. Name it “MQTT Integration”, select type MQTT; 421 +Go to the **Integrations center** -> **Integrations page** and click **“plus”** icon to add a new integration. Name it **“MQTT Integration”**, select type MQTT; 416 416 417 -[[image:image-20230802112413-35.png]] 423 +[[image:image-20230802112413-35.png||height="738" width="1312"]] 418 418 425 + 419 419 * The next steps is to add the recently created uplink and downlink converters; 420 420 421 -[[image:image-20230802112413-36.png]] 428 +[[image:image-20230802112413-36.png||height="736" width="1308"]] 422 422 423 -[[image:image-20230802112413-37.png]] 430 +[[image:image-20230802112413-37.png||height="735" width="1307"]] 424 424 425 425 (% style="color:blue" %)**Add a topic filter:** 426 426 ... ... @@ -429,11 +429,12 @@ 429 429 430 430 You can also select an MQTT QoS level. We use MQTT QoS level 0 (At most once) by default; 431 431 432 -[[image:image-20230802112413-38.png]] 439 +[[image:image-20230802112413-38.png||height="731" width="1300"]] 433 433 434 434 435 435 === 3.6.2 Simulate with MQTT.fx === 436 436 444 + 437 437 [[image:image-20230802112413-39.png]] 438 438 439 439 [[image:image-20230802112413-40.png]]