Last modified by Mengting Qiu on 2025/03/08 11:33
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... ... @@ -232,7 +232,7 @@ 232 232 233 233 == 3.4 Datacake == 234 234 235 -== 3.4.1 Define Product == 235 +=== 3.4.1 Define Product === 236 236 237 237 238 238 Firstly, we need to set the MQTT mode to datacake, and we need to run(% style="color:blue" %)** AT+PRO=3,2**(%%). This command is set to datacake. After running the command, the device automatically sets the server address, port. ... ... @@ -247,7 +247,7 @@ 247 247 248 248 In the second step you have to define the device which should be added to the product. 249 249 250 -[[image:image-20230802112413-15.png]] 250 +[[image:image-20230802112413-15.png||height="859" width="1290"]] 251 251 252 252 Enter a name here (such as "My First MQTT Device") and complete the creation of the device by clicking on the (% style="color:blue" %)**"Next"**(%%) button. 253 253 ... ... @@ -259,15 +259,15 @@ 259 259 260 260 You will then see a device view with an empty dashboard. Now, the first thing we want to do is navigate to the Device configuration. To do this, use the tab bar and click on (% style="color:blue" %)**"Configuration"**. 261 261 262 -[[image:image-20230802112413-16.png]] 262 +[[image:image-20230802112413-16.png||height="495" width="1310"]] 263 263 264 -[[image:image-20230802112413-17.png]] 264 +[[image:image-20230802112413-17.png||height="741" width="1303"]] 265 265 266 266 To create a first database field, please click on the (% style="color:blue" %)**"Add Field"**(%%) button as marked in the screenshot above. 267 267 268 268 This will open another modal asking for some required input for your first field. 269 269 270 -[[image:image-20230802112413-18.png]] 270 +[[image:image-20230802112413-18.png||height="878" width="1305"]] 271 271 272 272 [[image:image-20230802112413-19.png]] 273 273 ... ... @@ -303,10 +303,8 @@ 303 303 304 304 (% style="color:blue" %)**Subscribe** 305 305 306 -Data is published according to the following structure: 306 +Data is published according to the following structure: (% style="color:blue" %)**dtck~/~//**(%%)** ** 307 307 308 -dtck~/~// 309 - 310 310 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. 311 311 312 312 ... ... @@ -333,10 +333,8 @@ 333 333 334 334 To upload data into the Datacake Cloud and into a specific device, you publish the data to the respective topic structure. 335 335 336 -Due to the nature of MQTT, the topic prefix differs as follows: 334 +Due to the nature of MQTT, the topic prefix differs as follows: (% style="color:blue" %)**dtck-pub~/~//** 337 337 338 -dtck-pub~/~// 339 - 340 340 (% style="color:blue" %)**example:** 341 341 342 342 AT+SUBTOPIC=dtck/nbmattest/936c0db6-e9a5-4353-9fdb-3f63c8bfce7e/Temperature ... ... @@ -356,8 +356,10 @@ 356 356 357 357 === 3.5.1 Configure Node-Red === 358 358 355 + 359 359 [[image:image-20230802112413-29.png]] 360 360 358 + 361 361 [[image:image-20230802112413-30.png]] 362 362 363 363 ... ... @@ -370,7 +370,7 @@ 370 370 === 3.5.3 Configure NB-IoT Sensors === 371 371 372 372 373 -* (% 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 374 374 375 375 * (% style="color:blue" %)**AT+CLIENT=any value** 376 376 ... ... @@ -382,6 +382,8 @@ 382 382 383 383 * (% style="color:blue" %)**AT+SUBTOPIC=any value** 384 384 383 + 384 + 385 385 == 3.6 ThingsBoard.Cloud (via MQTT) == 386 386 387 387 === 3.6.1 Configure ThingsBoard === ... ... @@ -388,6 +388,7 @@ 388 388 389 389 ==== 3.6.1.1 Create Device ==== 390 390 391 + 391 391 Create a New Device in [[ThingsBoard>>url:https://thingsboard.cloud/]]. 392 392 393 393 [[image:image-20230802112413-32.png]] ... ... @@ -395,13 +395,14 @@ 395 395 396 396 ==== 3.6.1.2 Create Uplink & Downlink Converter ==== 397 397 399 + 398 398 (% style="color:blue" %)**Uplink Converter** 399 399 400 400 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. 401 401 402 -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. 403 403 404 -[[image:image-20230802112413-33.png]] 406 +[[image:image-20230802112413-33.png||height="732" width="1302"]] 405 405 406 406 407 407 (% style="color:blue" %)**Downlink Converter** ... ... @@ -408,7 +408,7 @@ 408 408 409 409 The Downlink converter transforming outgoing RPC message and then the Integration sends it to external MQTT broke 410 410 411 -[[image:image-20230802112413-34.png]] 413 +[[image:image-20230802112413-34.png||height="734" width="1305"]] 412 412 413 413 (% style="color:red" %)**Note:Our device payload is already human readable data. Therefore, users do not need to write decoders. Simply create by default.** 414 414 ... ... @@ -416,15 +416,16 @@ 416 416 ==== 3.6.1.3 MQTT Integration Setup ==== 417 417 418 418 419 -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; 420 420 421 -[[image:image-20230802112413-35.png]] 423 +[[image:image-20230802112413-35.png||height="738" width="1312"]] 422 422 425 + 423 423 * The next steps is to add the recently created uplink and downlink converters; 424 424 425 -[[image:image-20230802112413-36.png]] 428 +[[image:image-20230802112413-36.png||height="736" width="1308"]] 426 426 427 -[[image:image-20230802112413-37.png]] 430 +[[image:image-20230802112413-37.png||height="735" width="1307"]] 428 428 429 429 (% style="color:blue" %)**Add a topic filter:** 430 430 ... ... @@ -433,11 +433,12 @@ 433 433 434 434 You can also select an MQTT QoS level. We use MQTT QoS level 0 (At most once) by default; 435 435 436 -[[image:image-20230802112413-38.png]] 439 +[[image:image-20230802112413-38.png||height="731" width="1300"]] 437 437 438 438 439 439 === 3.6.2 Simulate with MQTT.fx === 440 440 444 + 441 441 [[image:image-20230802112413-39.png]] 442 442 443 443 [[image:image-20230802112413-40.png]]