IR Infrared sensor module

Features:

CATEGORY	SPECIFICATIONS
Product Type	Infrared Obstacle Avoidance Sensor Module
Sensor Type	Active infrared reflection sensor (IR transmitter + IR receiver)
Operating Principle	Emits IR light and detects reflection from obstacles; comparator processes signal output
Comparator IC	LM393
Operating Voltage	3.3 V – 5 V DC
Output Type	Digital output (HIGH / LOW signal)
Output Logic	No obstacle = HIGH (5V), Obstacle detected = LOW (0V)
Detection Range	Adjustable 2 cm – 30 cm
Detection Angle	~35°
Sensitivity Adjustment	Potentiometer (clockwise increases distance, counter-clockwise decreases)
Indicator LEDs	Power LED (red), detection LED (green)
Working Principle	IR emission → reflection from object → IR receiver detects → LM393 comparator outputs digital signal
Environmental Sensitivity	Affected by surface color/reflectivity (white = stronger detection, black = weaker)
Interference Level	Low interference, stable operation
Interface Pins	VCC, GND, OUT
Output Compatibility	Direct connection to microcontroller digital IO or relay module
Key Features	Adjustable range, stable LM393 comparator, easy integration, low cost, compact design
Applications	Obstacle avoidance robots, line tracking robots, automation systems, smart vehicles, industrial sensing, object detection systems