Matrix Orbital GLK12232-25-FGW - Manual (Page 9)

1.3 Features
• 122 x 32 pixel graphics display
• Selectable communication protocol, RS-232 or I
2 C
• Two, 5V - 20mA, general purpose outputs for a variety of applications
• 128 byte buffered communication
• Lightning fast communication speeds, up to 115 kbps for RS-232 and 100 kbps for I
2 C
• Default 19.2 kbps serial communication speed
• Extended temperature available for extreme environments of -20C to 60C
• Extended voltage and efficient power supply available
• Display text and images using 16 KB memory to store user defined fonts and bitmaps
• Support for up to a twenty-five key matrix style keypad
• Adjustable contrast and backlight brightness
1.4 Connecting to a PC
The GLK12232-25 connects seamlessly to a PC and it is an excellent means of testing the functionality
and uploading new fonts and bitmaps. You will require a Communication and 5V Power Cable such as the
one shown in Figure 5.
In order to connect your display to a personal computer follow these easy instructions:
1. Plug the DB9 end of the Communication and 5V Power cable cable into the com port you wish to use.
2. Connect the power connector end of the Communication and 5V Power cable into the PC power supply
(you will have to open your computer case if you do not have a separate power supply).
3. Connect the power and data connector of the Communication and 5V Power cable into the back of the
display, see Section 2.1 for details.
Matrix Orbital GLK12232-25 4