GP2Y0A41SK0F IR Distance Measuring Sensor Module

The IR Distance Measuring Sensor Module model GP2Y0A41SK0F measures the distance to an object between 4cm and 30cm using infrared triangulation (a method where an IR LED emits light, and a position-sensitive detector measures the angle of the reflected beam to calculate distance). The gp2y0a41sk0f ir sensor outputs an analog voltage that decreases as the object moves farther away. It draws 30mA of current and operates between 10°C and 60°C, covering all standard indoor conditions.

The gp2y0a41sk0f ir distance sensor has a non-linear output curve — the voltage does not decrease evenly as distance increases. Closer distances produce steeper voltage changes than farther distances. One non-obvious detail — the output is not directly proportional to distance. You need a lookup table or the inverse function from the sensor datasheet to convert voltage to centimetres accurately. The honest limitation is the 30cm maximum range. For distances beyond 30cm, a different longer-range sensor is needed. Very close objects below 4cm also cause an incorrect high-voltage reading.

The IR Distance Sensor connects to Arduino analog pins through a standard connector. Robotics students building obstacle avoiders, engineers making short-range proximity detectors, and hobbyists experimenting with distance-triggered projects all use it regularly. To start, connect VCC to 5V, GND to GND, and the output wire to an analog pin. StemVolt supplies this sensor tested with confirmed analog output across the 4cm to 30cm range.

Related Product:

• Check out the IR Speed Measuring Sensor Module

Features:

• Distance measuring range from 0.04m to 0.3m covers short-range obstacle detection for robot projects
• Operating temperature from 10°C to 60°C covers standard lab, classroom, and indoor project environments
• Analog output voltage maps to object distance allowing direct ADC reading on any microcontroller pin
• gp2y0a41sk0f distance sensor non-linear output curve gives finer resolution at shorter detection distances

Technical specifications:

Applications:

• Obstacle avoidance robot uses this sensor to stop the drive motors before hitting a wall
• Automatic tap controller uses this to detect a hand at under 10cm and trigger a relay output
• IR Distance Measuring Sensor Module reads shelf presence and sends alert when object distance drops below 5cm
• ir distance measuring sensor reads finger proximity at 4cm and triggers a touchless button GPIO input

Package includes:

• 1 x IR Distance Measuring Sensor Module