Description:

Looking for an affordable and reliable solution for measuring distances in your projects? Look no further than the HC-SR04 ultrasonic sensor!

This compact and easy-to-use sensor uses ultrasonic waves to accurately measure distances ranging from 2cm to 4m. With its high precision and quick response time, it's perfect for a wide range of applications, including robotics, automation, and even home security systems.

The HC-SR04 is also incredibly easy to use, with just four pins for power and data connections, and a simple interface that can be easily integrated into your existing projects. Plus, its low power consumption makes it ideal for use in battery-powered devices.

Whether you're a hobbyist or a professional, the HC-SR04 ultrasonic sensor is a versatile and reliable tool that can help take your projects to the next level.

Common Uses:

1. Obstacle detection: The sensor can detect objects in front of it and provide real-time feedback, making it a useful tool for creating obstacle detection and avoidance systems.
   
2. Security systems: The HC-SR04 can be used as a component in security systems to detect movement and trigger alarms or notifications.
3. Parking assist: The sensor can help drivers park their vehicles by providing real-time feedback on the distance between the vehicle and other objects.
4. Automatic door opener: The sensor can detect the presence of a person and trigger the opening of an automatic door, making it a useful tool for accessibility or convenience.
5. Fluid level detection: The HC-SR04 can be used to detect the level of liquids in tanks or other containers, making it useful for industrial or agricultural applications.

Specifications:

• Operating voltage: 5V DC
• Operating current: 15mA
• Operating frequency: 40kHz
• Detection range: 2cm - 400cm
• Accuracy: 3mm
• Trigger pulse width: 10 microseconds
• Echo pulse width: proportional to the distance of the object
• Operating temperature range: -15°C to +70°C
• Dimensions: 45mm x 20mm x 15mm

Resources:

• HC-SR04 Arduino Tutorial