I have several PIC18F452 in the PLCC package, so I decided to see if I could get that working.
My forth is running on it and I am implementing a new UI for the clock allowing the time to be set using a really cool dial/switch combo.
To connect to the new board I’ve made another daughter board that has the power connector, quadrature dial button thingy and a serial connection plug. I have made a little RS232 adapter using a MAX232 chip and a hand full of capacitors placed into a DB9 head shell with some pins sticking out of one end and a DB9 on the other. When I plug the adapter into my Funky Clock it is powered from the Funky Clock and I am able to send code and commands to it via a terminal emulator 🙂
It all works really nicely 🙂