Example: read rh measurement result, Table 15 get_parameter invoke message example, Table 16 get_parameter response message example – Vaisala HMM105 User Manual
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Chapter 2 _______________________________________________________________ I2C Interface
VAISALA ____________________________________________________________________ 13
Example: Read RH Measurement Result
Table 15
Get_Parameter Invoke Message Example
Message Bytes (hex) Content
2F
I
2
C address
81
Get_Parameter command
2F
Device address
06
Frame length
4F
RH Parameter ID
6A
CRC high
D4
CRC lo
Table 16
Get_Parameter Response Message Example
Message Bytes (hex) Content
2F
I
2
C address
00
Status byte (no errors, ACK)
81
Get_Parameter command
09
Device address
0B
Frame length
4F
RH Parameter ID
D4
RH value 14.43086624
%RH
E4
66
41
85
CRC high
6A
CRC lo