Sharp IR Sensor 10 to 80 cm Distance Measuring Range Finder

The Sharp GP2Y0A21YK0F infrared distance measuring sensor uses a beam of infrared light to reflect off an object to measure its distance. Because it uses triangulation of the beam of light to calculate the distance, it can provide consistent and reliable readings that are less sensitive to temperature variation or the object’s reflectivity. The sensor outputs an analog voltage corresponding to the distance of the object, and can easily be read using an inexpensive analog-to-digital converter (ADC) chip.

Features:

• Distance measurement range: 10 to 80 cm (3.9 to 31.5 inches)
• Analog output voltage corresponds to distance
• Operates on 5 V supply
• Convenient 3-pin interface
• Two mounting holes spaced 1.46 inches (37 mm) apart

Application Ideas:

• Distance sensor for autonomous robots
• Non-contact optical switch
• Industrial automation and controls

Key Specifications

• Power requirements: 5 VDC, 30 mA (typ.)
• Communication: Analog output voltage (typically 0.4 to 2.3 V range)
• Overall Dimensions: 1.75 x 0.74 x 0.53 in (4.45 x 1.89 x 1.35 cm)
• Operating temp range: +14 to +140 °F (-10 to +60 °C)

Download

• Arduino-GP2Y0A21YK-library
• Datasheet