← Back to Users
sangamkumar's activity in the archive.
Basically an IR motion detector, usually an IR emitter (pulsed to save power and extend life of the emitter), and an IR detector set up to watch for the IR signal reflected of the users hands.
Slashdot Mirror
Basically an IR motion detector, usually an IR emitter (pulsed to save power and extend life of the emitter), and an IR detector set up to watch for the IR signal reflected of the users hands.