Prototype for a light seeking robot
Matt put this picture of the next round of Piezo Preamp boards up on his Flickr Stream. I've removed the piezo -ve input, and tied it to ground, which might loose 3dB of gain, but makes figuring out ground planes a lot easier. I couldn't hear the difference when I shorted piezo -ve to ground, and it makes the layout much smaller and easier.
I started playing with an Arduino and a servo motor as preparation for a project I'm working on. Using an Arduino Nano on a breakout board, the setup just consists of plugging the three pin lead from the servo into one of the digital out ports.
Final days of testing, and doesn't everything all seem to go wrong at the end!