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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 179.2
edited by Xiaoling
on 2022/06/21 10:17
Change comment: There is no comment for this version
To version 176.1
edited by Xiaoling
on 2022/06/21 10:05
Change comment: Uploaded new attachment "image-20220621100550-5.png", version {1}

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231 231  (% _mstvisible="1" %)
232 232  == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) ==
233 233  
234 -Uplink payloads include two types: Valid Sensor Value and other status / control command.
234 +(% _msthash="315249" _msttexthash="7722962" _mstvisible="1" %)
235 +The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and (% _mstvisible="3" style="color:#4f81bd" %)**every 20 minutes**(%%) send one uplink by default.
235 235  
236 -* Valid Sensor Value: Use FPORT=2
237 -* Other control command: Use FPORT other than 2.
237 +(% _msthash="315250" _msttexthash="1322711" _mstvisible="1" %)
238 +After each uplink, the (% _mstvisible="3" style="color:blue" %)**BLUE LED**(%%) will blink once.
238 238  
239 -
240 240  (% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
241 241  (% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
242 242  (((
... ... @@ -301,194 +301,50 @@
301 301  [[Ext value>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
302 302  )))
303 303  
304 +(% _mstvisible="1" %)
305 +* The First 6 bytes: has fix meanings for every LHT65N.
306 +* The 7th byte (EXT #): defines the external sensor model.
307 +* The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
304 304  
305 -
306 -
307 307  (% _mstvisible="1" %)
308 -=== (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 U(%%)plink FPORT~=5, Device Status ===
310 +=== (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
309 309  
310 -Uplink the device configures with FPORT=5. Once LHT52 Joined the network, it will uplink this message to the server. After first uplink, LHT52 will uplink Device Status every 12 hours.
312 +(% _msthash="315251" _msttexthash="9786491" _mstvisible="1" %)
313 +When the uplink payload arrives TTNv3, it shows HEX format and not friendly to read. We can add LHT65N decoder in TTNv3 for friendly reading.
311 311  
312 -|**Size (bytes)**|**1**|**2**|**1**|**1**|**2**
313 -|**Value**|Sensor Model|Firmware Version|Frequency Band|Sub-band|BAT
315 +(% _msthash="315252" _msttexthash="3928483" _mstvisible="1" %)
316 +Below is the position to put the decoder and LHT65N decoder can be download from here:
314 314  
318 +(% _mstvisible="1" %)
319 +[[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0 >>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0||_msthash="315253" _msttexthash="3509064" _mstvisible="2"]]
315 315  
316 -[[image:image-20220621100550-5.png]]
321 +(% _mstvisible="1" %)
322 +[[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
317 317  
318 -Example Payload (FPort=5):
319 319  
320 -09 01 00 01 00 0B 3A
321 321  
326 +(% _mstvisible="1" %)
327 +=== (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 BAT-Battery Info(%%) ===
322 322  
323 -**Sensor Model**: For LHT52, this value is 0x09.
329 +(% _msthash="315254" _msttexthash="3122912" _mstvisible="1" %)
330 +These two bytes of BAT include the battery state and the actually voltage
324 324  
332 +(% _mstvisible="1" %)
333 +[[image:image-20220523152839-18.png||_mstalt="457613" _mstvisible="3"]]
325 325  
326 -**Firmware Version**: 0x0100, Means: v1.0.0 version.
335 +(% _mstvisible="1" %)
336 +[[image:image-20220522235639-1.png||_mstalt="431392" _mstvisible="3" height="139" width="727"]]
327 327  
338 +(% _msthash="315255" _msttexthash="871611" _mstvisible="1" %)
339 +Check the battery voltage for LHT65N.
328 328  
329 -**Frequency Band**:
330 -
331 -*0x01: EU868
332 -
333 -*0x02: US915
334 -
335 -*0x03: IN865
336 -
337 -*0x04: AU915
338 -
339 -*0x05: KZ865
340 -
341 -*0x06: RU864
342 -
343 -*0x07: AS923
344 -
345 -*0x08: AS923-1
346 -
347 -*0x09: AS923-2
348 -
349 -*0x0a: AS923-3
350 -
351 -
352 -**Sub-Band**: value 0x00 ~~ 0x08(only for CN470, AU915,US915. Others are0x00)
353 -
354 -
355 -**BAT**: shows the battery voltage for LHT52.
356 -
357 -Ex1: 0x0B3A = 2874mV
358 -
359 -
360 -
361 -Use can also get the Device Status uplink through the downlink command:
362 -
363 -**Downlink:0x2301**
364 -
365 -
366 -[[image:image-20220621100550-6.png||height="504" width="1491"]]
367 -
368 -
369 -
370 -
371 371  (% _mstvisible="1" %)
372 -=== (% _msthash="411411" _msttexthash="383656" _mstvisible="3" %)2.4.2 U(%%)plink FPORT~=2, Real time sensor value ===
342 +* BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
343 +* Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
373 373  
374 -LHT52 will send this uplink after Device Status uplink once join LoRaWAN network successfully. And it will periodically send this uplink. Default interval is 20 minutes and [[can be changed>>path:#Uplink_Interval]].
375 -
376 -Uplink uses FPORT=2 and every 20 minutes send one uplink by default.
377 -
378 -(% _mstvisible="1" border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:426px" %)
379 -(% _mstvisible="3" %)|=(% _mstvisible="4" style="width: 97px;" %)(% _mstvisible="5" %)
380 -(((
381 -(% _mstvisible="6" %)
382 -(% _msthash="1817478" _msttexthash="161122" _mstvisible="8" %)**Size(bytes)**
383 -)))|=(% _mstvisible="4" style="width: 39px;" %)(% _mstvisible="5" %)
384 -(((
385 -(% _mstvisible="6" %)
386 -(% _msthash="1817479" _msttexthash="4550" _mstvisible="8" %)**2**
387 -)))|=(% _mstvisible="4" style="width: 100px;" %)(% _mstvisible="5" %)
388 -(((
389 -(% _mstvisible="6" %)
390 -(% _msthash="1817480" _msttexthash="4550" _mstvisible="8" %)**2**
391 -)))|=(% _mstvisible="4" style="width: 77px;" %)(% _mstvisible="5" %)
392 -(((
393 -(% _mstvisible="6" %)
394 -(% _msthash="1817481" _msttexthash="4550" _mstvisible="8" %)**2**
395 -)))|=(% _mstvisible="4" style="width: 47px;" %)(% _mstvisible="5" %)
396 -(((
397 -(% _mstvisible="6" %)
398 -(% _msthash="1817482" _msttexthash="4459" _mstvisible="8" %)**1**
399 -)))|=(% _mstvisible="4" style="width: 51px;" %)(% _mstvisible="5" %)
400 -(((
401 -(% _mstvisible="6" %)
402 -(% _msthash="1817483" _msttexthash="4732" _mstvisible="8" %)**4**
403 -)))
404 -(% _mstvisible="3" %)|(% _mstvisible="4" style="width:97px" %)(% _mstvisible="5" %)
405 -(((
406 -(% _mstvisible="6" %)
407 -(% _msthash="1817484" _msttexthash="60203" _mstvisible="8" %)**Value**
408 -)))|(% _mstvisible="4" style="width:39px" %)(% _mstvisible="5" %)
409 -(((
410 -(% _mstvisible="6" %)
411 -[[Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
412 -)))|(% _mstvisible="4" style="width:100px" %)(% _mstvisible="5" %)
413 -(((
414 -(% _mstvisible="6" %)
415 -(((
416 -(% _mstvisible="7" %)
417 -[[Humidity>>||anchor="H2.4.4Built-inHumidity" _msthash="2224744" _msttexthash="117429" _mstvisible="8"]]
418 -
419 -(% _mstvisible="7" %)
420 -
421 -)))
422 -)))|(% _mstvisible="4" style="width:77px" %)(% _mstvisible="5" %)
423 -(((
424 -(% _mstvisible="6" %)
425 -(((
426 -(% _mstvisible="7" %)
427 -[[External Temperature>>||anchor="H2.4.3Built-inTemperature" _msthash="2224742" _msttexthash="405769" _mstvisible="8"]]
428 -)))
429 -)))|(% _mstvisible="4" style="width:47px" %)(% _mstvisible="5" %)
430 -(((
431 -(% _mstvisible="6" %)
432 -[[Ext>>||anchor="H2.4.5Ext23" _msthash="1817486" _msttexthash="32331" _mstvisible="7"]] #
433 -)))|(% _mstvisible="4" style="width:51px" %)(((
434 -[[Unix TimeStamp>>||anchor="H2.4.6Extvalue" _msthash="1817487" _msttexthash="116545" _mstvisible="7"]]
435 -)))
436 -
437 -
438 -**Temperature:**
439 -
440 -[[image:image-20220621101526-7.png]]
441 -
442 -Example Payload (FPort=2):
443 -
444 -08 CD 02 20 7F FF 01 61 CD 4E DD
445 -
446 -**Temperature & External Temperature:**
447 -
448 -* Example1:  0x08CD/100=22.53℃
449 -* Example2:  (0xF5C6-65536)/100=-26.18℃
450 -
451 -
452 -**Humidity:**
453 -
454 -* Humidity:    0x0220/10=54.4%
455 -
456 -
457 -**Extension #**
458 -
459 -Bytes for External Sensor:
460 -
461 -|**EXT # Value**|**External Sensor Probe**
462 -|0x01|Sensor AS-01, Temperature
463 -
464 -
465 -
466 -
467 -
468 -
469 469  (% _mstvisible="1" %)
470 -=== (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3  U(%%)plink FPORT~=3, Datalog sensor value ===
346 +=== (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
471 471  
472 -LHT52 stores sensor value and user can retrieve these history value via downlink command. The Datalog sensor value are sent via FPORT=3.
473 -
474 -[[image:image-20220621101659-8.png]]
475 -
476 -
477 -* Each data entry is 11 bytes, to save airtime and battery, LHT52 will send max bytes according to the current DR and Frequency bands.
478 -
479 -For example, in US915 band, the max payload for different DR is:
480 -
481 -1. DR0: max is 11 bytes so one entry of data
482 -1. DR1: max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
483 -1. DR2: total payload includes 11 entries of data
484 -1. DR3: total payload includes 22 entries of data.
485 -
486 -
487 -**Notice**: LHT52 will save 178 set of history data, If device doesn’t have any data in the polling time. Device will uplink 11 bytes of 0.
488 -
489 -
490 -See more info about the [[Datalog feature>>path:#Datalog]].
491 -
492 492  (% _mstvisible="1" %)
493 493  [[image:image-20220522235639-2.png||_mstalt="431756" _mstvisible="3" height="138" width="722"]]
494 494  
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