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Control Codes
Viewing control state (Get control command)
Header Command ID Data length Checksum
0xAA Command type 0
Controlling (Set control command)
Header Command ID Data length Data Checksum
0xAA Command type 1 Value
Command
No. Command type Command Value range
1 Power control 0x11 0~1
2 Volume control 0x12 0~100
3 Input source control 0x14 -
4 Screen mode control 0x18 -
5 Screen size control 0x19 0~255
6 Video wall mode control 0x5C 0~1
7 Safety Lock 0x5D 0~1
8 Video Wall On 0x84 0~1
9 Video Wall User Control 0x89 -
All communications take place in hexadecimals. The checksum is calculated by adding up all values
except the header. If a checksum adds up to be more than 2 digits as shown below (11+FF+01+01=112),
the first digit is removed.
E.g. Power On & ID=0
Header Command ID Data length Data 1 Checksum
0xAA 0x11 1 "Power"
Header Command ID Data length Data 1 12
0xAA 0x11 1 1
To control all devices connected by a serial cable simultaneously irrespective of IDs, set the ID
as "0xFE" and transmit commands. Commands will be executed by each device but ACK will not
respond.
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