My first Arduino project - multi emulator

Electric skillet ... hot plate ...stove top frying pan ... they all work. SparkFun has a tutorial on using a skillet. Scroll half way down the page.

Because most of my projects and designs are personal stuff, I don't bother to document them. There is a one-time-only design that I created for a group of kids at a local high school. I attached a composite image which shows the various stages of the product. I didn't write anything about it. I should remedy that one of these days ...

My current (paid) project is a board designed to control a bunch of sensors together. I attached an image of that as well.