This Crowtail- IR Reflective Sensor reflective module emits the infrared light and then detects if the echo received, to estimates if there is a obstacle or not.This Crowtail Sensor is a basic and widely used part in applications such as line-following ca https://elecena.pl/product/6057124/crowtail-ir-reflective-sensor-2-0 2016-05-07 https://elecena.pl/product/6057124/crowtail-ir-reflective-sensor-2-0 2017-08-30 https://elecena.pl/product/6057124/crowtail-ir-reflective-sensor-2-0 2026-07-21