Circuit Lake

Electronic Project and Circuit Collection

Digital Message Machine

06/15/2007 Category: AVR, Digital, Display, LED, Project

Message Machine

Jon Winslow has designed and built a digital dot matrix message device for his final project. It uses AVR AT90LS8515 MCU as main processor. The display consists of 7 LEDs in a vertical row. By moving them fast enough back and forth over each other, It can display a message which appears to be generated by a 7*n matrix of LEDs and not a single column of LEDs.

LED POV Display
Project Firmware, Schematic and Documentation