Sharp Infrared Distance Sensor 20-150cm GP2Y0A02

The Sharp GP2Y0A02 measures distances from 20 to 150 cm by infrared and outputs them as an analog voltage. Its small size and short measuring time make it suitable for robots that need to avoid obstacles. The output can be evaluated at an analog input, for example of an Arduino.

Recommended alternative for shorter distances: Sharp Infrared Distance Sensor 2Y0A21

Recommended Accessories:

• Electrolytic Capacitor Set 120 Pieces assorted

Features:

• Measuring range 20 to 150 cm
• Analog output, not linear with distance: the voltage falls as the distance increases, the curve is in the image gallery
• Below about 15 cm the voltage falls again, so values below 20 cm are not unambiguous
• The manufacturer recommends a capacitor of at least 10 µF between supply and ground close to the sensor
• 2 mounting lugs

Application Examples:

• Obstacle avoidance for robots
• Contactless distance measurement up to 150 cm

Documentation:

• Sharp GP2Y0A02 datasheet (PDF)
• Product description with characteristics (Pololu)

Technical Data:

• Marking: SHARP 2Y0A02
• Measuring range: 20 to 150 cm
• Supply voltage: 4.5 to 5.5 V
• Operating current: approx. 33 mA
• Output: analog, not linear with distance
• Time per measurement: 38 ms ± 10 ms
• Connection: red = +5 V, black = GND, yellow = analog voltage
• Cable length: 20 cm
• Weight: 7 g

Scope of Delivery:

• 1× Sharp infrared distance sensor 20-150 cm GP2Y0A02
• 1× Connection cable