Description
Infrared obstacle avoidance sensor module for Arduino, ESP32, and robot projects. A pair of infrared transmitter and receiver tubes sends out a set frequency; when an obstacle reflects the infrared back, the comparator circuit switches the OUT pin to a digital low-level signal and the green indicator lights up.
Detection distance is 2 to 30 cm (adjustable with the onboard potentiometer) with a 35° detection angle. It runs on 3.3–5V DC, uses the LM393 comparator, has a red power indicator, and a 3-pin interface: VCC, GND, and OUT (digital 0/1) that connects directly to a microcontroller IO pin and can drive a 5V relay directly. The board is 3.1 x 1.5 cm with 3mm mounting holes.
Use it for robot obstacle avoidance, obstacle-avoidance cars, line counting, and black-and-white line tracking. Sold in 5-packs and 10-packs. I check every order before it ships. Ships from NY, USA.
See also: Robot Sensors · 37 in 1 / 45 in 1 Sensor Modules Starter Kit for Arduino UNO R3 / MEGA2560 · HC-SR04 Ultrasonic Ranging Sensor Module for Arduino, 2-450cm, with Mounting Bracket Options · Guide: Which Sensor Should You Buy? Temperature, Motion, Distance, and Gas
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