Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -401,17 +401,10 @@ 401 401 402 402 == 2.6 Datalog Feature == 403 403 404 - DatalogFeature istoensureIoTServer cangetallsamplingdatafromSensor even iftheLoRaWANnetworkis down.For eachsampling,LHT65Nwill store thereading for futureretrievingpurposes. Therearetwo ways forIoT serversto getdatalog from LHT65N.404 +This feature is always enabled. When user wants to retrieve the sensor value, he can send a poll command from the IoT platform to ask LHT65N to send the value in the required time slot. 405 405 406 -=== 2.6.1 Waysto getdatalogvia LoRaWAN===406 +=== 2.6.1 Unix TimeStamp === 407 407 408 -There are two methods: 409 - 410 -1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>poll the value||anchor="H2.6.4Pollsensorvalue"]]. 411 -1. 412 - 413 -=== 2.6.2 Unix TimeStamp === 414 - 415 415 LHT65N uses Unix TimeStamp format based on 416 416 417 417 [[image:image-20220523001219-11.png||height="97" width="627"]] ... ... @@ -429,7 +429,7 @@ 429 429 430 430 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25 431 431 432 -=== 2.6. 3Set Device Time ===425 +=== 2.6.2 Set Device Time === 433 433 434 434 ((( 435 435 There are two ways to set device’s time: ... ... @@ -463,7 +463,7 @@ 463 463 User needs to set SYNCMOD=0 to manual time, otherwise, the user set time will be overwritten by the time set by the server. 464 464 ))) 465 465 466 -=== 2.6. 4Poll sensor value ===459 +=== 2.6.3 Poll sensor value === 467 467 468 468 User can poll sensor value based on timestamps from the server. Below is the downlink command. 469 469 ... ... @@ -486,7 +486,7 @@ 486 486 ))) 487 487 488 488 489 -=== 2.6. 5Datalog Uplink payload ===482 +=== 2.6.4 Datalog Uplink payload === 490 490 491 491 The Datalog poll reply uplink will use below payload format. 492 492