The Sharp GP2Y0A02YK0F is an infrared distance measuring sensor with a detection range of 20 to 150 cm. It uses triangulation — combining an infrared emitter (IRED) and a position-sensitive detector (PSD) — to output an analogue voltage proportional to the distance of the detected object.

Because it relies on triangulation rather than simple intensity measurement, the sensor is largely unaffected by the colour or reflectivity of the target object, ambient temperature, or measurement duration. The analogue output makes it straightforward to interface with any microcontroller's ADC input.

Key Features

• 20–150 cm Range – Long-range infrared distance measurement
• Analogue Voltage Output – Simple interface via any ADC-equipped microcontroller
• Triangulation Method – Accurate regardless of target colour or reflectivity
• Low Power – Typical 33 mA current consumption
• Compact Module – Integrated IRED, PSD, and signal processing circuit

Specifications

• Model – GP2Y0A02YK0F
• Detection Range – 20 to 150 cm
• Output Type – Analogue voltage
• Supply Voltage – 4.5 to 5.5 V
• Current Consumption – 33 mA (typical)
• Sensing Method – Infrared triangulation (IRED + PSD)

Ideal For

• Robotics obstacle avoidance and navigation
• Distance measurement and proximity detection
• Automated systems and object detection
• Arduino, Raspberry Pi, and microcontroller projects