Matrix Orbital GLT240128 Legacy - Manual (Page 25)

Syntax Hexadecimal 0xFE 0x33 [adr]
Decimal 254 51 [adr]
ASCII 254 “3” [adr]
Parameters Parameter Length Description
adr 1 The new I 2 C write address (0x00 -
0xFF).
Description This command sets the I 2 C write address of the module between 0x00
and 0xFF. The I 2 C write address must be an even number and the read
address is automatically set to one higher. For example if the I 2 C write
address is set to 0x50, then the read address is 0x51.
NOTE The change in address is immediate.
Remembered Always
Default 0x50
4.5 Changing the Baud Rate
Syntax Hexadecimal 0xFE 0x39 [speed]
Decimal 254 57 [speed]
ASCII 254 “9” [speed]
Parameters Parameter Length Description
speed 1 Hex value corresponding to a baud
rate.
Description This command sets the RS-232 port to the specified [speed]. The change
takes place immediately. [speed] is a single byte specifying the desired
port speed. Valid speeds are shown in the table below. The display
module can be manually reset to 19,200 baud in the event of an error
during transmission, including transmitting a value not listed below, by
setting the manual override jumper during power up. However, it should
be noted that this command will be ignored until the manual override
jumper is removed again.
Hex Value Baud Rate
0xCF 9600
0x8A 14400
0x67 19200
0x44 28800
0x33 38400
0x22 57600
0x19 76800
0x10 115200
Remembered Always
Default 19,200 bps
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