Temperature and humidity compensation

Measured temperature compensation

This command is used to set/get the measured temperature compensation in °C.

The actual keepalive payload is omitted for clarity.

SET

Byte index	Hex value - Meaning
0	31 - command code
1	00: Positive compensation 01: Negative compensation
2	XX - Tcomp[°C] * 10 Default: 0x00

Example command: 0x31000F – When we separate the value of the temperature from the command code we get 0x000F, which means positive compensation of 1.5°C. Thus, if the real measured temperature is 25, the device will report 26.5.

GET

Byte index	Hex value - Meaning
0	32 - command code
1	00: Positive compensation 01: Negative compensation
2	XX - Tcomp[°C] * 10

Example command: 0x32

Example command: 0x320103 – When we separate the value of the temperature from the command code we get 0x000F, which means negative compensation of 0.5°C. Thus, if the real measured temperature is 25, the device will report 24.7.

The allowed range is -25.5... 25.5°C (0.1°C resolution).

Measured humidity compensation

This command is used to set/get the measured humidity compensation in %.

The actual keepalive payload is omitted for clarity.

SET

Byte index	Hex value - Meaning
0	33 - command code
1	00: Positive compensation 01: Negative compensation
2	XX - Hcomp[%] * 10 Default: 0x00

Example command: 0x310005 – When we separate the value of the humidity from the command code we get 0x0005, which means positive compensation of 5%. Thus, if the real measured humidity is 55, the device will report 60.

GET

Byte index	Hex value - Meaning
0	34 - command code
1	00: Positive compensation 01: Negative compensation
2	XX - Hcomp[%] * 10

Example command: 0x32

Example command: 0x320103 – When we separate the value of the humidity from the command code we get 0x0003, which means negative compensation of 3%. Thus, if the real measured humidity is 50, the device will report 47.

The allowed range is -99... 99% (1% resolution).