The HC-SR04 is a versatile ultrasonic sensor designed for precise distance measurement in robotics and automation projects. It operates by emitting eight 40 kHz ultrasonic pulses and detecting the echo to determine if an object is within its range. The sensor then outputs a high-level signal, with the duration corresponding to the time taken for the ultrasonic pulse to travel to the object and return.
Key Features:
Components: The module integrates ultrasonic transmitters, a receiver, and a control circuit, making it a complete solution for distance measurement.
Connection Interface: The sensor has 4 pins—VCC, Trig, Echo, and GND—providing a straightforward interface for microcontrollers.
Measurement Range: Detects objects within a range of 2 cm to 400 cm (approximately 1 inch to 13 feet).
Accuracy: Offers a high accuracy of up to 3mm, ensuring reliable measurements.
Power Requirements: Operates on a 5V supply, making it compatible with Arduino and other 5V logic microcontrollers.
Applications:
Ideal for use in robotics, obstacle detection, and various non-contact measurement applications.
Compact design allows easy integration into projects requiring precise distance sensing.
The HC-SR04 sensor is perfect for projects that require accurate, non-contact distance measurements, providing a reliable solution for your electronics and robotics endeavors.