User's Manual

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LHT65 Temperature & Humidity sensor 9 / 40
Step 2: Use ACT button to activate LHT65 and it will auto join to the TTN network. After join
success, it will start to upload sensor data to TTN and user can see in the panel.
2.4 Uplink Payload
The uplink payload includes totally 11 bytes. Uplink packets use FPORT=2 and every 10 minutes
send one uplink by default.
After each uplink, the BLUE LED will blink once.
Size(bytes)
2
2
2
1
4
Value
BAT
Built-In
Temperature
Built-in
Humidity
Ext #
Ext value
First 6 bytes: has fix meanings for every device.
The 7th byte (EXT #): defines the external sensor model.
The 8
th
~ 11
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.)