The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like Sharp rangefinders are. Similar in performance to the SRF005 but with the low-price of a Sharp infrared sensor.
Power Supply:5V DC Quiescent Current: <2mA Effectual Angle: <15° Ranging Distance: 2cm – 500 cm (5 meters) Resolution: 0.3 cm
