GP2Y0A41SK0F
Overview
The GP2Y0A41SK0F is a compact distance measuring sensor unit composed of an integrated combination of PSD (position sensitive detector), IRED (infrared emitting diode), and signal processing circuit. It utilizes the triangulation method to provide stable distance measurements between 4cm and 30cm, making it significantly less sensitive to the reflectivity of the object or the ambient temperature. The output is an analog voltage corresponding to the detected distance, facilitating easy integration with microcontroller ADCs.
Why Choose This Part
The sensor is highly resilient to variations in object color or material because it relies on the angle of reflected light rather than intensity. It operates on a standard 4.5V to 5.5V supply and features a low typical current consumption of 12mA. Its analog output simplifies the system design by eliminating the need for complex digital communication protocols.
Applications
Key Specifications
Getting Started
Connect the 3-pin JST connector to your system, providing 5V and GND, and wire the output pin to an analog-to-digital converter (ADC) pin. Because the output voltage is non-linear relative to distance (roughly 2.25V change from 4cm to 30cm), you must use a lookup table or a curve-fitting linearization formula in your firmware to calculate the exact distance in centimeters.
Also Consider
STMicroelectronics
- A Time-of-Flight (ToF) digital sensor offering higher precision and I2C communication in a smaller footprint.
