HC-SR04 Ultrasonic sensor

HC-SR04 Ultrasonic sensor

The sensor has 4 pins. 5volts is supplied to the VCC pin and GND is connected to the GND of Arduino. There are two other pins called TRIG and ECHO pins. The Trig pin transmits an ultrasonic wave and the ECHO pin receives the reflected signal from the object.

Frw 4,500

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