The MCP2122 is a self-contained infrared encoder/decoder based on IrDA standard and is pinout-compatible with the Agilent® HSDL-7000 encoder/decoder. The device contains two interfaces: the host UART ...
A DTMF-based IR transmitter and receiver pair can be used to realize a proximity detector. The circuit presented here enables you to detect any object capable of reflecting the IR beam and moving in ...