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Sharp GP2Y0A21YK0F IR Distance Sensor

The Sharp GP2Y0A21YK0F IR Distance Sensor is a reliable analog infrared distance measuring sensor designed for accurate object detection between 10cm and 80cm. Using optical triangulation instead of simple IR reflection, it delivers stable distance measurements with minimal influence from object color or ambient light compared to basic IR obstacle sensors. It outputs an analog voltage proportional to the detected distance, making it ideal for robotics, automation, obstacle avoidance, and smart electronic projects. Typical operating specifications include a 4.5V–5.5V supply, analog voltage output, 10–80cm detection range, and approximately 30mA current consumption.

Features

• Genuine Sharp GP2Y0A21YK0F infrared distance sensor
• Detection range: 10cm to 80cm
• Analog voltage output
• Fast response for real-time measurements
• Stable performance using triangulation technology
• Easy interface with Arduino, ESP32, STM32 and Raspberry Pi ADC
• Compact and lightweight design
• Ideal for indoor robotics and automation

Specifications

• Model: GP2Y0A21YK0F
• Measuring Range: 10–80cm
• Operating Voltage: 4.5V–5.5V
• Output Type: Analog Voltage
• Average Current: 30mA
• Response Time: Approximately 38ms
• Weight: Approximately 3.5g

Applications

• Robot obstacle avoidance
• Distance measurement systems
• Line-following robots
• Smart automation projects
• Object detection
• Industrial automation
• • DIY electronics projects
  • Educational robotics

  Package Includes

  • 1 × Sharp GP2Y0A21YK0F IR Distance Sensor (10–80cm)