![]() ![]() IO trigger for at 10µs high-level signal.However, ultrasound has a frequency of over 20,000 Hz and is therefore inaudible to humans.īasic working principle of ultrasonic sensor Human ears can hear sound waves that vibrate in the range from about 20 times a second (a deep rumbling noise) to about 20,000 times a second (a high-pitched whistling). Ultrasound is high-pitched sound waves with frequencies higher than the audible limit of human hearing. ![]() Here you get HC SR04 Arduino Ultrasonic Sensor at a reasonable price in Karachi, Lahore, Islamabad, Rawalpindi, Peshawar, Multan, Quetta, Faisalabad and all over Pakistan. Trigger Input Pulse width: 10uS minimumīest Online Shopping website for Ultrasonic Sensor.Ranging Distance : 2cm – 400 cm/1″ – 13ft.This is easily interfaceable for many microcontrollers like Arduino uno r3, Microchip PIC and ST Microcontrollers.Ĭlick me for instructable of this product. It comes complete with the Ultrasonic Sensor transmitter and a receiver module. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package. The ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do. ![]() The modules include ultrasonic transmitters, receiver and control circuit. Ultrasonic Sensor module HC-SR04 provides 2cm – 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. HC SR04 HC-SR04 Ultrasonic Sensor also called HC-SR04 Ultrasonic Range Finder. ![]()
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