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 ...

Posted in Arduino Hacks Tagged altitude, arduino, BMP 180, Nokia 5110 LCD, pressure sensor, pro mini, temperature ← CRAYFIS Hijacks Our Cellphones For A Worldwide Cosmic Ray Detector ...

I used an LCD shield to display the current temperature and speed of the fan, but you can use the circuit without the LCD display. You also need to select the transistor by the type of fan that you ...