dryer

An arduino based clothes dryer controller.

Algorithm

The algorithm is based on state machine, comprising the following states:

Off
Heat
Vent
Observe
Done

When you flip the switch to ON, the controller starts on state "Heat".

Hardware used

Ardiuno, whatever model
One clothes dryer cabinet
One duct fan, for forced air evacuation
Two 240V 10A DC relays
Two DHT22 temperature and humidity sensors
One 16x2 character LCD
One 5VDC power supply (I ripped apart an old USB charger)
One on/off switch
One 240V power contact

Optional bonus items:

Circulation fans inside the dryer cabinet b