Lufft SHM31 - CRC Calculation

UMB communication
Snow depth sensor SHM 31, V2.1 41
9.3.6. CRC calculation
The CRC is calculated according to the following rules:
Norm: CRC-CCITT
Polynomial: 1021h = x
16
+ x
12
+ x
5
+ 1 (LSB first mode)
Start value: FFFFh
For more information, see the description of a CRC calculation in the UMB protocol.