My first blender model in scale

I edged my first pcb for the alarm clock of my dreams :)

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

I got the RS-232 connection working. Nothing special, but from that helps a lot when debugging

I had success interfacing the HD44780 display

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.

Drawn in my early school days. If your child does something like that, I suggest you support it becoming an electronic engineer or a programmer, like me.