These projects are perfect for Arduino.Know when someone knocks — or worse Arduino is able to interpret signals from a variety of sensors. By placing a unit equipped with an ADXL345, an ...

This Arduino-based Pomodoro timer project also uses this 25-minute cycle. Once you push the button to start the timer, it will run for 25 minutes, display a count-up timer and a "Study time!" ...

Use Arduino to handle sensor input and relay control. Pi runs a Python Flask server with a simple UI to toggle GPIO pins via serial commands sent to the Arduino. Use cron jobs on Linux to schedule ...