ECE 120L Final ProjectLCD SCREENSAVER USING CUSTOM CHARACTERS

CHRISTOPHER HAYS DECEMBER 2013

Objectives

Create a screensaver for the LCD screen supplied with the PIC16 development board.

Use characters that are not already defined in the LCD module’s ROM.

Have an easily adjustable delay.

The screen should clear if any input is detected.

Hardware Connections

Addressing CGRAM

Character Creation

Character Demonstration

Successful build

Links

Link to the demonstration video.

Link to the technical report.

Link to the HD44780 data sheet.

Conclusion Screensaver starts after 8 seconds without input.

Custom characters display and scroll to the left.

This LCD Module uses the HD44780 instruction set.

Up to 8 characters can be stored in CGRAM.

Polling method was used to detect input.