Name: HC-SR04 Ultrasonic Sensor
SKU: 133
Price: 99.00 INR
Availability: InStock

Ultrasonic Ranging Detector Mod HC-SR04 Distance Sensor (Blue)
HC-SR04 Arduino ultrasonic sensor can send eight 40 kHz and detect whether there is any pulse signal back.If it back, a high level signal will be outputed by IO, and the duration of the signal is the time from sending ultrasonic to returning.
The modules includes ultrasonic transmitters, receiver and control circuit.
There are 4 pins out of the module : VCC , Trig, Echo, GND. So it’s a very easy interface for controller to use it ranging.
The sensor is small, easy to use in any robotics project and offers excellent non-contact range detection between 2 cm to 400 cm (that’s about an inch to 13 feet) with an accuracy of 3mm. Since it operates on 5 volts, it can be hooked directly to an Arduino or any other 5V logic microcontrollers.

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HC-SR04 Ultrasonic Sensor