- The comparator features the reliable LM393, ensuring stable operation in a variety of conditions. It operates on a power supply of 3-5V, with a red power indicator that lights up when the device is activated. - Equipped with a sensitivity adjustment knob, this module allows you to tailor the detection range to meet specific environmental needs, making it suitable for diverse applications. - When detecting an obstacle, the module's green LED indicator activates, and the OUT connection continuously outputs a signal. The detection range spans from 2 to 30 cm with a detection angle of 35 degrees. You can easily adjust the detection distance using the potentiometer: turn it clockwise to increase the range and counterclockwise to decrease it. - The sensor actively detects IR reflection, with target shape influencing recognition distance. Black objects yield the shortest detection range, while white objects provide the maximum range. Smaller objects may have limited distance, while larger objects can be detected from farther away. Applications for this module include: 1. Proximity sensing in robotics, allowing for obstacle avoidance in automated devices. 2. Presence detection for automatic lighting systems that turn on when someone approaches an area. 3. Distance measuring in DIY projects for more efficient design and functionality in custom builds. This module stands out due to its adjustable sensitivity and robust detection capabilities, making it a versatile solution for various projects.