arduinoversusevil has posted details on automating irrigation system with the MSP430:
It took about 3 hours to get most of the water out. Standing next to a noisy compressor, chooching a lever back and forth is no fun. This year, I got smrt. I dug through my junk bins and found a metric shit ton of timer relays to do the grunt work for me. Unfortunately, despite being robust AND expensive, nothing off the shelf fit the bill.
LaunchPad to the rescue! I hooked up a relay board to my air solenoid valve, and wrote a little code. Now I’m sitting pretty while my machines do the work!