Barco RS232 - Manual (Page 29)

2. Basic Commands
2.7.10 Brightness, Read
Description
Reads the actual Brightness value of the projector
Command
Command [0] \x21
Command [1] \x02
Returned Data
Data [0] = Brightness value
Example
Reads the actual Brightness value of the projector, the awnser being
\x20
Transmit
Start \xfe
Projector address \x01
Command[0] \x21
Command[1] \x02
Checksum \x24
Stop \xff
Receive (acknowledge)
Start \xfe
Projector address \x01
Command[0] \x00
Command[1] \x06
Checksum \x07
Stop \xff
Receive (Answer)
Start \xfe
Projector address \x01
Command[0] \x21
Command[1] \x02
Data [0] \x20
Checksum \x44
Stop \xff
2.7.11 Minimum Brightness, Read
Description
Reads the minimum (range) Brightness value of the projector
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