SparkFun Photo Interrupter Breakout Board - GP1A57HRJ00F Infrared Networking - Wireless Products The pins are spaced by

The pins are spaced by just about 0

EM4001 ISO based RFID IC

It’s not what project you have in mind that may use a rocket launch switch… The question is what project will you come up with once you have one in hand

They mate very well with break away male headers

Lamp color: Positive White

SparkFun Photo Interrupter Breakout Board - GP1A57HRJ00F Infrared Networking - Wireless Products The pins are spaced byA 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