39
ATIM_ACW-THAQ_UG_FR_V1.7
For an offset of -1°C, the value will be -100 = 0x9CFF.
Coefficient
The multiplication coefficient is represented by the "Value" field in the table above. The coefficient value must be sent
in
Little Endian
encoding and can be between 0 and 10,000 (this value is divided by 1000 by the product).
EXAMPLE
For a coefficient of 0,1, the sent value will be 100 = 0x6400.
For a coefficient of 1, the value will be 1000 = 0xE803.
e.
Altitude configuration (compensation of the CO
2
sensor)
Byte 1
Byte 2
Byte 3
Parameter code
Parameter value
Parameter value
0x5D
0xZZ
0xYY
The altitude value (in meters) is encoded as follows: 0xYYZZ.
EXAMPLE
Tto configure the parameter at an altitude of 1000m (0x03E8 in hexadecimal), the frame will be 0x5D E8 03
f.
Air quality index configuration
Byte 1
Byte 2
Parameter code
Parameter value
0x1C
value
The field
value
can exclusively be « 1 » (indicator enabled) or « 0 » (indicator disabled).
Parameter code (Byte 1)
Byte 2
Byte 3
0x59
(temperature coefficient)
Value
