n
Example :
Set the sharpness to \x03 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
\xfe
\x01
\x20
\x05
\x03
\x29
\xff
\xfe
\x01
\x00
\x06
\x07
\xff
409