This build is about using the temperature sensor in your clock. The ATMega328p, the chip at the heart of all your Arduino Uno clones, has within it a watchdog timer that clicks over at a rate of ...

This tutorial on thermopile sensors for contactless temperature measurement offers insights for using them in real-world ...

This is the type of thing you could throw together with a microcontroller hobby board (i.e. Arduino and the related diaspora), a couple temp sensors (whether thermistors on analog pins or I2C temp ...

Posted in Arduino Hacks, home hacks Tagged ac, air conditioner, arduino, hvac, temperature sensor, thermostat ...