This digital IR sensor module combines an infrared transmitter and receiver for proximity detection, obstacle avoidance, and surface reflectance sensing. Ideal for robotics, automation, and security systems, it provides a digital output when objects are detected within its adjustable range.
Key Benefits
✔ Precise Detection – Adjustable range via potentiometer
✔ Ambient Light Immunity – Resists interference from visible light
✔ Compact & Durable – All-in-one PCB design
✔ Low Power – Ideal for battery-operated projects
Technical Specifications
Core Specifications
Detection Method: Infrared reflection (950nm wavelength)
Operating Voltage: 3.3V–5V DC
Output Signal: Digital (TTL) – HIGH/LOW
Detection Range: 2cm–30cm (adjustable)
Electrical Characteristics
Current Draw: <20mA
Response Time: <10ms
Interface: 3-pin (VCC, GND, OUT)
Physical Properties
Dimensions: 30mm × 15mm × 7mm
Potentiometer: Sensitivity adjustment
LED Indicators:
Power (Red)
Detection (Green)
Why Choose This IR Sensor?
✔ Easy Calibration – Fine-tune range for any surface
✔ Plug-and-Play – Works with Arduino/ESP/RPi
✔ Line Following Ready – Perfect for robot competitions
Common Uses:
Obstacle-avoidance robots
Industrial object counters
Touchless faucet controls
Security systems (beam breaks)
Pro Tip:
For dark surfaces, reduce sensitivity (rotate potentiometer clockwise).
For long-range detection, pair with an IR reflector!
Package Includes:
1 x IR Sensor Module