November 16, 2010
prototype: alarm clock

This is my first working prototype. It: plays mp3 music from sd memory card, shows status messages on an spi interfaced display, communicates via rs-232, receives and decodes the dcf-77 signal to drive a precise clock

April 26, 2010
uC programming

Worth an entry: The first day I have ever programmed a µ-controller myself. My aim was to build a digital alarm clock and this led me directly into the world of digital electronics.