GLK12232-25-WBL-E Matrix Orbital, GLK12232-25-WBL-E Datasheet - Page 8

• Manufacturer Part Number: GLK12232-25-WBL-E
• Description: LCD GRAPHIC DISPL 122X32 WHT BLU
• Manufacturer: Matrix Orbital

Specifications of GLK12232-25-WBL-E

• Display Type: LCD - Color
• Display Mode: Transmissive
• Viewing Area: 76.00mm L x 25.20mm W
• Backlight: LED - White
• Dot Size: 0.52mm W x 0.62mm H
• Dot Pitch: 0.53mm x 0.53mm
• Dot Pixels: 122 x 32
• Interface: I²C, RS232, TTL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

To experiment, reverse the connector and see if it generates a more logical set of characters. Ultimately, the
program in the micro-controller will have to ’map’ these characters to the ones marked on the keypad, which
will likely be different.
1.8 Manual Over-ride
rate which cannot be produced by the host system and all communication to the display is lost, then the user
should follow this simple procedure;
2.1 Connector Pinout
Matrix Orbital
3. Press a key on the keypad. An upper case ASCII character (A-Y) should appear on the PC screen.
1. Turn off the display.
2. Put a jumper on pins 5 and 6 of the keypad connector.
3. Power up the display. The baud rate is now set to 19,200.
4. Remove the jumper and change the RS-232 port settings to the desired baud rate.
5. Turn off the display.
6. Power up the display.
Manual over-ride should only be required in one instance. If for some reason the module is set at a baud
Refer to the diagram below for this chapter.
Different keys should generate different characters.
2 Connectionshttp://www.atmel.com/dyn/resources/prod_do
NOTE This procedure does not change settings in the memory chip, it uses default set-
tings stored in the main processor. This allows the user to communicate with the display
when all other communications are lost. Once able to communicate with the display, the
user may then change the default settings in the memory chip.
NOTES
• The keypad connector must be wired with columns on one side and rows on the other
• The connector is reversible. Reversing the connector will not damage the keypad or
side of the center of the connector. If the keypad isn’t wired this way, an adapter will
need to be made. Another method would be to rewire the connector to meet this
requirement.
the display, but will however, change the ASCII character map.
GLK12232-25-WBL
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