Who Farted?

thingiverse

"Who Farted?" is a simple Arduino project. It utilizes a methane/alcohol sensor with a micro-servo to identify the location of the highest levels of methane gas. Basically, it's a fart detector! Great for party games involving lots of pizza and beer. Just push the button and the servo rotates the methane sensor 160 degrees in one degree increments. Each time it moves it takes a reading from the methane sensor. After completing the 160 degrees, the servo moves to the position where the highest reading was obtained. To see the thing in action go here: https://ernestnegus.smugmug.com/WhoFarted Edit 6/29: I found that giving the gas sensor a few seconds to warm up after being powered on will improve the consistency of the readings, so the sketch has been updated to include that.