USB-LED-Fader can control up to 8 LEDs with individual brightness waveforms. Its command line tool can easily be integrated into scripts to implement a status display for computer load, mailbox status, network load, video recording software or similar background tasks.This project use ATtiny2313.ย�[read]

An IR signal is “seen” by a reverse biased IR diode which produced an electrical signal according to the light intensity. This signal is then amplified trough a transistor which powers an ordinary LED. This means that the LED will light up when the IR diodes receives some IR light (from a TV remote for instance).[read]