Description
Ultrasound sensor (HC-SR04) is a range sensor that allows you to detect distances to obstacles within a range of 2 to 450 cm. The sensor uses ultrasound waves and includes all necessary electronics to perform the measurement.
Characteristics
- Board size: 43 x 20 x 17 mm
- Operational voltage: 5 Vcc
- Sound frequency: 40 KHz
- Maximum range: 4.5 m
- Minimum range: 1.7 cm
- Minimum pulse length for triggering: 10 μS.
- Echo pulse: 100-25000 μS.
Distance = {(ToF) * (Sound Speed 340 m/s)}/2
ToF: Time of Flight
