SparkFun Photo Interrupter Breakout Board - GP1A57HRJ00F Infrared Power Packs video phone and vehicle rear

video phone and vehicle rear view etc

and as a trigger for reed switches

This is not a true piezoelectric speaker but behaves similarly

Before you can get your set-top box on the internet

Rated up to 150V @ 2A

SparkFun Photo Interrupter Breakout Board - GP1A57HRJ00F Infrared Power Packs video phone and vehicle rearA simple breakout PCB for the GP1A57HR photo interrupter. This PCB has three connections for PWR, GND, and Signal. When the gate is clear, SIG will be high (>4. 9V). When the gate is blocked by a finger, writing utensil, food pellet, or anything else SIG will go low (<0. 4V). Assembled picture is for reference only, board comes bare; photo interrupter and the 220? (330?, works as well) current limiting resistor are listed below. Documents: Schematic