Example :
Set the color temperature to 6500 on a projector with
address \x01.
Transmit
Start
Projector address
Command[0]
Command[1]
Data[0]
Checksum
Stop
Receive (acknowledge)
Start
Projector address
Command[0]
Command[1]
Checksum
Stop
color temperature, write
\xfe
\x01
\x20
\x45
\x41
\xa7
\xff
\xfe
\x01
\x00
\x06
\x07
\xff
152