The GP2Y0A21YK0F (2Y0A21) is an analog output type distance measuring sensor unit, composed of an integrated combination of position sensitive detector (PSD), infrared emitting Diode ... linearize the ...

We’ll demonstrate this sensor using a single resistor and a multimeter. Sharp GP2Y0D02 fixed 80cm IR proximity detector ... The open collector output (pin 1) pulls to ground when no object ...