User Manual for LoRaWAN End Nodes - LHT65N LoRaWAN Temperature & Humidity Sensor Manual
2.6 Datalog Feature
Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is
down. For each sampling, LHT65N will store the reading for future retrieving purposes. There are two ways for IoT
servers to get datalog from LHT65N.
2.6.1 Ways to get datalog via LoRaWAN
There are two methods:
1. IoT Server sends a downlink LoRaWAN command to poll the value for specifying time range.
2. Set PNACKMD=1, LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N
will store the sensor data, and it will send all messages after the network recovery.
Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
2.6.2 Unix TimeStamp
LHT65N uses Unix TimeStamp format based on
User can get this time from link: https://www.epochconverter.com/ :
Below is the converter example
Page 20 / 56 - last modified by Bei Jinggeng on 2022/07/06 13:48
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