Barco RS232 - Manual (Page 52)

2. Basic Commands
Transmit
Checksum \x85
Stop \xff
Receive (acknowledge)
Start \xfe
Projector address \x01
Command[0] \x00
Command[1] \x06
Checksum \x07
Stop \xff
2.14 Orientation, Read
Description
Reads the orientation of the projector
Command
Command [0] \x21
Command [1] \x24
Returned Data
Data [0] = unsigned byte
byte value:
\x00 = rear/table ; \x40 = front/table ; \x80 = front/ceiling ; \xc0 = rear/ceiling
Example
Read the orientation being :
\x40
= front/table.
Transmit
Start \xfe
Projector address \x01
Command[0] \x21
Command[1] \x24
Checksum \x46
Stop \xff
Receive (acknowledge)
Start \xfe
Projector address \x01
Command[0] \x00
Command[1] \x06
50 R5976884 RLM SERIES 04/04/2006