Overview

This module having a pair of infrared transmitter and receiver. It is well adaptable to surrounding light with strong anti-interfere property.

The light is emitted by transmitter, When it meets an obstacle(reflection surface), it is reflected and received by receiver. Then the signal will pass to a comparator(LM393) for processing then the corresponding indicator light is on and a LOW level signal is send out to the interface(OUT).

Detection distance can be adjusted through potentiometer knob between 2 ~ 80cm. Working voltage is from 3.3V to 5V. It is suitable for a variety of microcontroller, such as Arduino. It can be installed on robot to detect the surrounding environment changes.

Specification

• Power Supply : DC3.3V ~ 5V

• Detection range : 2 ~ 80cm

• Interface : 3-wires output

• Output : TTL logic ('H' for no obstacle; 'L' for obstacle detected)

• Effective angle : 35 deg.

• Dimension : 31mm x 15mm

• LED indication for power and TTL logic output

Pin Definition

• VCC : Connect to 3.3V/5V

• GND : Connect to ground.

• OUT : Digital output ('H' or 'L').