PICTURES ADDED - not great pictures - but pictures none the less - -So I don't have any pictures of my actual incubator at the moment but I am currently running a test run with some eggs from a friend. I thought some of you might be interested in the data collected over the first 23 hours. I have only shown the graph for temperature vs time. I also have humidity information which is interesting regarding the temperature it is almost exactly inverse to the temperature graph. I realized humidity would go down as temp went up but the correlation surprised me. Anyway here is the temp graph. A bit about the project: It uses 3 DHT22 temperature / humidity sensors. It takes the Median temperature of the 3 sensors. (all are within 0.4 deg of each other) I decided that would be the most accurate and safest way to get the correct temperature, if one sensor fails the median will still be accurate. (Average on the other hand would not be accurate if a senor failed) The temperature controlled relay is set to turn on / off at 37.5 deg C So far it is an arduino uno with a sd card shield and a 4 relay shield. I had a lot more planned for it but ran out of time before spring. It currently looks a little like a spaghetti monster, but seems to be stable. Future additions: Audible alarm for out of temp. Some method to add humidity based on humidity sensors. Buttons to adjust target temperature. Better enclosure and a plug for the sensors so they are not hardwired. I will try to add pictures in the not too distant future.