Often the thermostat on a fridge can break rendering the entire fridge useless without costly repair. Fortunately, like most problems, this can be solved using Arduino! Asynkronix has put together a great guide on how you can use an Arduino to cheaply replace a broken thermostat in your fridge. The fix works by reading the temperature inside the fridge and using the Arduino to switch on and off the cooling compressor as needed using a relay. To find out more about how you can fix your own fridge checkout the following link.
Looking for a temperature sensor to use in this project? Why not check out the Freetronics Humidity and Temperature Sensor Module?
The module only requires three wires: GND, power and data. This means that it is very easy to get started recording temperature and humidity data! The find out more visit the product page.Working on a cool project you think we should know about? Let us know in the comments section below or on Facebook and Twitter.