Posted in Arduino Hacks Tagged adafruit, infrared, ir, kart racing, Lap counter, racing, reflective object sensor, sparkfun, thermal printer, Velleman PEM10D ...

This setup creates a reflective sensor. When an object nears the board, the infrared light from the emitters reflects off of it and onto the phototransistor.

The sensor operates at 5V for Arduino and 3.3V for Raspberry Pi, ensuring seamless integration with these popular microcontroller and microcomputer platforms.

Releases Tags Releases · adafruit/Adafruit-STEMMA-Reflective-Photo-Interrupt-Sensor-PCB ...

It can also be used as a general-purpose photoelectric sensor or proximity sensor. Mass production of the SWIR type reflective sensor “KPR series” is scheduled to start on August 31, 2023.