The HC-SR04 ultrasonic distance sensor is a compact module designed for measuring distances in various microcontroller projects, particularly with Arduino boards.
This sensor is useful for applications like obstacle detection in robotics, parking assistants, or smart home setups, where accurate distance measurement helps in creating responsive and efficient systems.
- Features four-pin connections: VCC, Trig, Echo, and GND for straightforward integration
- Provides an output signal ranging from 0V to 5V, compatible with 5VDC power supplies
- Detects distances from 2cm to 450cm with a precision of up to 3mm
- Operates by sending eight 40kHz square waves upon receiving a trigger signal of at least 10us
- Automatically detects returning pulses to calculate distance
- Easy to use with Arduino, requiring basic programming for data interpretation
Light specifications include a power requirement of 5VDC and compatibility with common microcontroller platforms for hobbyists and educators building distance-measuring projects.
This sensor fits well into educational, prototyping, and DIY electronics scenarios where reliable distance data is needed without complex setup.
