GP2Y0A02YK0F

Overview

The GP2Y0A02YK0F is an integrated distance measuring sensor comprising a combination of a position sensitive detector (PSD), an infrared emitting diode (IRED), and a signal processing circuit. It utilizes the triangulation method to measure distances between 20 cm and 150 cm, making the output relatively insensitive to the reflectivity of the object or environmental temperature.

Why Choose This Part

The sensor provides a continuous analog output voltage corresponding to the detected distance, simplifying integration with standard ADC inputs. Because it uses triangulation rather than simple intensity, it is significantly less affected by the color or material of the target object.

Applications

Getting Started

Connect the three-pin JST connector to a 5V supply and an analog-to-digital converter (ADC) pin on your microcontroller. Since the output voltage is non-linear relative to distance (inverse proportional), use a look-up table or a linearization formula in your firmware to convert the 0.4V to 2.45V output range into centimeters.

Also Consider

GP2Y0A21YK0F Sharp Microelectronics - A shorter range version (10 cm to 80 cm) with a higher update frequency for closer proximity applications.

VL53L1X STMicroelectronics - A digital Time-of-Flight (ToF) sensor that offers higher precision and I2C communication in a much smaller form factor.