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Description :
Read the text displayed on the 2 line LCD.
Command :
Command[0]
Command[1]
Data :
Data[0]
Data[1]
Data[2]
Note : Data[2] is optional
Return data :
Text as a C-language string.
Projector type :
All projectors equipped with a 2 line LCD.
Example :
Read the text displayed at position (0, 0) of the 2 line LCD
of a projector with address \x01. Suppose the text is "hello
world".
Transmit
Start
Projector address
Command[0]
Command[1]
Data[0]
Data[1]
Checksum
Stop
2 line LCD, read text
\x7a
\x02
horizontal position (\x00..)
vertical position (\x00..)
max number of characters
\xfe
\x01
\x7a
\x02
\x00
\x00
\x7d
\xff
75
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