Obstacles Avoidance Sensor Module

This module detects an obstacle at distance 2 ~ 30cm (the distance is adjustable), a green light will indicate that an obstacle is detected.
The output port OUT can be connected to a microcontroller IO port, or directly to a 5V relay to control a device such as a motor or light. You can use it to create a smart car or smart robot project that follows a track and stops whenever an obstacle is present.