Ultrasonic Distance Sensor – HC-SR04

Ultrasonic Distance Sensor – HC-SR04

This budget Ultra-Sonic range finder will read between 2cm and 400cm with an accuracy of up to 3mm. The board runs at 5V (DC) and uses around 15mA. With a reading angle of 15 degrees, this is great for inexpensive range finding for obstacle avoiding robots or reading objects passing on a conveyor belt ETC.

This module packs a control circuit, ultrasonic transmitter, and a receiver.

This sensor has additional control circuitry that can prevent inconsistent “bouncy” data depending on the application.

Specifications:

• Operating Voltage: 5V DC
• Operating Current: 15mA
• Measure Angle: 15°
• Ranging Distance: 2cm – 4m

Documents:

• HC-SR04_UltrasonicSensorExample.ino (Example Arduino Code)
• HCSR04 (Datasheet)