EasyFFT: Fast Fourier Transform (FFT) for Arduino

Ultrasound Sensor: 2D Tracking With Arduino

QuickFFT: High Speed (low accuracy) FFT for Arduino

Arduino Music: Notes and Chord Detector

Using IR Sensor (TCRT 5000) With Arduino

Reading RC Receiver PPM Signal Using Arduino

DIY: Arduino Based Continuous Touch Piano

Arduino: Continuous MIDI Controller / Keyboard

ApproxFFT: Fastest FFT Function for Arduino