This project guide explains how to build an operating railroad grade crossing signal controller (GCSC) for controlling a simulated railroad crossing signal that has working flashing lamps and striking bell. Just like the real thing!
This board was also designed with hacking in mind. Due to the on-board 5 VDC power supply and extensive breakout headers and detailed silkscreening it also makes an excellent Microchip PIC12 development board. The I/O pins used for the GCSC-II implementation can be detached though small cut-trace pads on the back of the board so that you can route the micro’s I/O pins to anywhere you like. Separately the opto-isolated input and 3 high-power outputs can be re-purposed for many other projects and experiments. You can even try connecting them to your own bread board for off-board development.
All of the design and documentation for this project is maintained on a GoogleCode project site which you can find at this link: http://code.google.com/p/gcsc-ii/
I hope you enjoy building and hacking this board as much as I did designing it. If you have done something with it and found it helpful, drop me a line. I would love to hear about it.