Skip to Content

Changes for page DMT01

Last modified by Xiaoling on 2025/08/15 17:26
From version 47.17
edited by Mengting Qiu
on 2025/08/04 17:54
Change comment: There is no comment for this version
To version 51.2
edited by Mengting Qiu
on 2025/08/04 18:58
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -337,88 +337,91 @@
337 337  (% border="1" cellspacing="3" style="background-color:#f2f2f2; width:510px" %)
338 338  |=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
339 339  **Size(bytes)**
340 -)))|=(% style="width: 40px;background-color:#4F81BD;color:white" %)1|=(% style="width: 90px;background-color:#4F81BD;color:white" %)1|=(% style="width: 150px; background-color: #4F81BD;color:white" %)6|=(% style="width: 80px; background-color: #4F81BD;color:white" %)1|=(% style="width: 80px; background-color: #4F81BD;color:white" %)2|=(% style="width: 80px; background-color: #4F81BD;color:white" %)2|=(% style="width: 80px; background-color: #4F81BD;color:white" %)4
340 +)))|=(% style="width: 40px;background-color:#4F81BD;color:white" %)4|=(% style="width: 90px;background-color:#4F81BD;color:white" %)1|=(% style="width: 150px; background-color: #4F81BD;color:white" %)6|=(% style="width: 80px; background-color: #4F81BD;color:white" %)1|=(% style="width: 80px; background-color: #4F81BD;color:white" %)1|=(% style="width: 80px; background-color: #4F81BD;color:white" %)2|=(% style="width: 80px; background-color: #4F81BD;color:white" %)2
341 341  |(% style="width:99px" %)Value|(% style="width:69px" %)(((
342 -BoxBat
342 +Timestamp
343 343  
344 344  
345 345  )))|(% style="width:130px" %)DevMode|(% style="width:194px" %)MACaddr|(% style="width:106px" %)ProbeBat|(% style="width:97px" %)(((
346 -Food temperature
347 -)))|(% style="width:97px" %)Ambient temperature|(% style="width:97px" %)Timestamp
346 +BoxBat
347 +)))|(% style="width:97px" %)Food temperature|(% style="width:97px" %)Ambient temperature
348 348  
349 349  [[image:1754300947187-648.png||height="641" width="1351"]]
350 350  
351 351  
352 -==== ====
353 353  
354 -Sensor Battery Level.
353 +==== (% style="color:#4472c4" %)**Unit timestamp**(%%) ====
355 355  
356 -Ex1: 0x0B45 = 2885mV
355 +Unit TimeStamp Example: 689085D7(H) = 1754301911(D)
357 357  
358 -Ex2: 0x0B49 = 2889mV
357 +Put the decimal value into this link([[https:~~/~~/www.epochconverter.com)>>https://www.epochconverter.com]])to get the time.
359 359  
360 360  
361 -(% class="wikigeneratedid" id="HDevMode" %)
362 -(% style="color:#4472c4" %)**DevMode**
360 +==== (% style="color:#4472c4" %)**DevMode**(%%) ====
363 363  
362 +**Example**：
364 364  
364 +If payload is 0x01: BLE_LoRa
365 365  
366 -(% class="wikigeneratedid" id="HMACaddr" %)
367 -(% style="color:#4472c4" %)**MACaddr**
366 +If payload is 0x02: LoRa
368 368  
369 -Read:0x(0197)=412    Value:  407 / 10=40.7, So 40.7%
368 +If payload is 0x03: BLE
370 370  
371 371  
372 -(% class="wikigeneratedid" id="HProbeBat" %)
373 -(% style="color:#4472c4" %)**ProbeBat**
371 +==== (% style="color:#4472c4" %)**MACaddr**(%%) ====
374 374  
373 +**Example**:
374 +
375 +If the payload is C12309250F1A, the MACaddr is C12309250F1A
376 +
377 +
378 +==== (% style="color:#4472c4" %)**ProbeBat**(%%) ====
379 +
375 375  **Example:**
376 376  
377 -If payload & 0x01 = 0x01  **~-~->** This is an Alarm Message.It means that the temperature and humidity exceed the alarm value or trigger an interrupt.
382 +If payload is 0x64 = 100%
378 378  
379 -If payload & 0x01 = 0x00  **~-~->** This is a normal uplink message, no alarm.
380 380  
381 -If payload & 0x80>>7 = 0x01  **~-~->** The PA8 is low level.
385 +==== (% style="color:#4472c4" %)**BoxBat**(%%) ====
382 382  
383 -If payload & 0x80>>7 =0x00  **~-~->** The PA8 is high level.
387 +**Example:**
384 384  
385 -If payload >> 2 = 0x00  **~-~->**  means MOD=1, This is a sampling uplink message.
389 +If payload is 0x46 = 70%
386 386  
387 -If payload >> 2 = 0x31  **~-~->**  means MOD=31, this message is a reply message for polling, this message contains the alarm settings. see [[this link>>path:#HPolltheAlarmsettings:]] for detail.
388 388  
392 +==== (% style="color:#4472c4" %)**Food temperature**(%%) ====
389 389  
390 -(% style="color:#4472c4" %)**Food temperature**
394 +Because the food temperature data is a little-endian sequence, the order of the front and back bytes needs to be swapped during decoding.
391 391  
392 392  **Example**:
393 393  
394 -If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
398 +If payload is: D300H = 00D3H, temp = 00D3H /10 = 21.1 degree
395 395  
396 -If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
400 +If payload is: 3FFFH  = FF3F , temp = (FF3FH - 65536)/10 = -19.3 degrees.
397 397  
398 -(FF3F & 8000:Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
399 399  
403 +==== (% style="color:#4472c4" %)**Ambient temperature**(%%) ====
400 400  
401 -(% style="color:#4472c4" %)**Ambient temperature**
405 +Because the food temperature data is a little-endian sequence, the order of the front and back bytes needs to be swapped during decoding.
402 402  
403 403  **Example**:
404 404  
405 -If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
409 +If payload is: D200H = 00D2H, temp = 00D2H /10 = 21.0 degree
406 406  
407 -If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
411 +If payload is: 3FFFH  = FF3F , temp = (FF3FH - 65536)/10 = -19.3 degrees.
408 408  
409 -(FF3F & 8000:Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
410 410  
411 411  
412 -(% class="wikigeneratedid" id="HUnittimestamp" %)
413 -(% style="color:#4472c4" %)**Unit timestamp**
415 +== 2.4 Bluetoothe Broadcast Payload ==
414 414  
415 -Unit TimeStamp Example: 67CF92A7(H) = 1741656743(D)
417 +=== 2.4.1 Scanning Tools ===
416 416  
417 -Put the decimal value into this link([[https:~~/~~/www.epochconverter.com)>>https://www.epochconverter.com]])to get the time.
419 +Scan and obtain DMT01 device broadcast data through a third-party mobile phone app (such as nRF Connect)
418 418  
421 +Example：
419 419  
423 +Note: The following data is obtained through the **nRF Connect tool**.
420 420  
421 -== 2.4 Bluetoothe Broadcast Payload ==
422 422  
423 423  
424 424  
1754305091443-355.jpg
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.ting
Size
... ... @@ -1,0 +1,1 @@
1 +408.8 KB
Content