光学传感器开发工具 A simple breakout PCB for the GP1A57HR photo interrupter (also known as a photogate photodiode or phototransistor). 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 b

光学传感器开发工具 This version of the QRE1113 breakout board features a digital output using a capacitor discharge circuit to measure the amount of reflection. This tiny board is perfect for line sensing when only digital I/O is available and can be used in both 3.3