Jonathan Foote over at Rotormind is at it again with our Art Controller. This time, he is using it to thermostatically control a ventilation fan.

He has wired up a TC74 temperature sensor on board and reprogrammed the microcontroller to trigger the relay when a temperature set point is reached. The temperature is set using the DIP switch. He has posted his code and shared in detail all of his modifications. Head over and check it out!