GP2Y0A710K0F Infrared Distance Measuring Sensor Module (100-550cm Range) with 20cm Cable – Sharp Long-Range Proximity Sensor

Description

The Sharp GP2Y0A710K0F is the longest-range analog infrared distance sensor in the Sharp lineup, designed for applications that require reliable object detection and distance measurement at extended distances. It uses optical triangulation—combining an infrared emitting diode (IRED) and a position-sensitive detector (PSD)—to determine distance to a reflective object, outputting an analog voltage that varies with distance . With a detection range of 100cm to 550cm, this sensor is a viable alternative to sonar sensors in robotics and automation, offering better directional selectivity at a lower cost than many ultrasonic or laser rangefinders .

The sensor connects to any microcontroller with an ADC, making it suitable for Arduino, ESP32, and Raspberry Pi projects (with external ADC). The output voltage ranges from approximately 2.5V at 100cm to 1.4V at 500cm, with a typical output voltage differential of 1.55V over the full range . The relationship between output voltage and the inverse of distance is approximately linear, allowing conversion to distance through a best-fit line or empirical formula .

Critical power supply and wiring note: The sensor uses a 5-pin JST connector with dual VCC and dual GND pins. The wire colors are not intuitive—connect both outer ground wires to ground, both VCC wires to 5V, and read the analog signal from the Vo wire . Sharp recommends placing a 10µF or larger bypass capacitor between VCC and GND as close to the sensor as possible to stabilize the power supply and prevent erratic readings .

Features

• 100–550cm Extra-Long Range: Sharp’s longest-range analog sensor, suitable for obstacle avoidance and distance measurement where shorter sensors fall short .

• Triangulation Measurement Method: Uses IRED and PSD, making readings largely unaffected by target color, reflectivity, ambient temperature, or measurement duration .

• Analog Voltage Output: Single output connects directly to any ADC for distance measurement or comparator-based threshold detection.

• Fast Update Rate: 38ms ± 10ms update period (approximately 26Hz sampling rate) for responsive real-time measurements .

• Dual VCC/GND 5-Pin Connector: Provides stable power delivery through dual pins; requires careful wiring due to non-intuitive wire colors .

• Compact and Lightweight: Measures 58 × 17.6 × 22.5mm and weighs approximately 9–11g, suitable for small robots and drones .

• Low Average Current: 30mA typical consumption, though pulsed operation requires adequate power supply decoupling .

• RoHS-Compliant: Lead-free construction suitable for commercial and educational deployments .

Technical Specifications