3. Love-O-Meter

Well, Massimo Banzi shows us how to create the inexplicably named “Love-O-Meter”. Quite simply, the system acts as a thermometer, and it is capable of measuring how hot (or not) you are. Banzi also uses several clever pieces of kit, including a temperature sensor that emits a voltage proportionate to every degree of centigrade it detects.

Banzi then runs through the code needed to implement this rather curious behaviour.