Self-Powered / Wireless Push Button Controller


We have built a compact piezoelectric push button and associated minimal circuitry that is able to transmit a digital RFID code to the immediate region (50-100 foot radius) upon a single button push, without the need of batteries or other energy sources. Such devices have the potential of enabling the introduction of controls and interfaces into interactive environments without requiring any wiring, optical/acoustic lines of sight, or batteries.