GLK12232-25

www.DataSheet4U.com GLK12232-25 User Manual Connecting GLK12232-25 The GLK12232-25 serial interface display has two types of communications: RS-232 and I²C. The pin functions on the GLK12232-25 are as follows: I²C Pin 4: Pin 5: Pin 6: Pin 7: RS-232 Pin 7: GND Pin 8: Rx Pin 9: Tx Pin 10: +5V Keypad Connector Pin 14: Pin 15: Pin 16: Pin 17: Pin 18: Pin 19: Pin 20: Pin 21: Pin 22: Pin 23: Column 1 Column 2 Column 3 Column 4 Column 5 Row 1 Row 2 Row 3 Row 4 Row 5 +5Vdc SCL SDA GND www.DataSheet4U.com Additional Pins Note: All of the pin functions listed here are No Connect Pin 1: N.C. (Pin 1) Pin 2: GND Pin 3: GND Pin 11: N.C. (G1) Pin 12: N.C. (G2) Pin 13: GND Pin 24: N.C. (Rst) Pin 25: N.C. (Cont) Warning: Do not apply any power with reversed polarization Do not apply any voltage other than the specified voltage Do not under any circumstances use an unmodified floppy drive cable. 2 Fonts, Bitmaps and the File System www.DataSheet4U.com Matrix Orbital graphic modules contain a sophisticated file system for storing and retrieving font information, bitmaps and system parameters: Not unlike the way that a computer deals with files on a hard drive. However, the modules use no moving parts, therefore, data is stored far more reliably than data on a home PC. Operationally, there is one important difference between the Matrix Orbital file system and that of a PC. While a PC will allow fragmentation of its files across the available file space, the Matrix Orbital file system ta...