Sharp GP2Y0A21YK0F Distance Measuring Sensor - 10 to 80 cm Range

The Sharp GP2Y0A21YK is a distance-measuring sensor unit with a range of 10 to 80 cm. Here are the key specifications and features:

Note: This sensor draws current in large, short bursts, and the manufacturer recommends putting a 10 µF capacitor or larger across power and ground close to the sensor to stabilize the power supply line

  Specifications:  

• Model: GP2Y0A21YK0F (10 to 80 cm)
• Operating Voltage Range: 4.5~5.5V
• Distance Measuring Range: 10 ~ 80 cm
• Screw Holes: 37mm apart, 3 mm diameter
• Connecting Cable Length: 15 cm
• Length: 44 mm
• Width: 18 mm
• Height: 13 mm
• Weight: 4 gm

  Features:  

• Analog output varies from 3.1V at 10 cm to 0.4V at 80 cm
• Consists of an integrated combination of PSD, IRED, and signal processing circuit
• The triangulation method ensures distance detection is not easily influenced by object reflectivity, environmental temperature, or operating duration
• Outputs voltage corresponding to detection distance can be used as a proximity sensor

  Package Includes:  

• 1 x Sharp Distance Measuring Sensor unit 10 to 80 cm
• 1 x Connecting cable.

To use the sensor, connect the black wire to the ground, the red wire to 5V, and the white wire to the analog input. The analog voltage output will range from 3V when an object is 10 cm away to 0.4V when the object is 80 cm away. To stabilize the power supply line, it is recommended to place a 10 µF capacitor or larger across power and ground close to the sensor.