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LTC2 LoRaWAN Temperature Transmitter
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2.5.3
Poll sensor value
User can poll sensor value base on timestamps from server. Below is the downlink command.
1byte
4bytes
4bytes
1byte
31
Timestamp start
Timestamp end
Uplink Interval
Timestamp start and Timestamp end use Unix TimeStamp format as mentioned above. Devices
will reply with all data log during this time period, use the uplink interval.
For example, downlink command 31 60A06E90 60A07CA0 0A
Is to check 2021/5/16 01:00:00 to 2021/5/16 02:00:00’s data
Uplink Internal =10s
，
means LTC2 will send one packet every 10s. range 5~255s.
