HC-SR04 Ultrasonic Distance Sensor
The HC-SR04 Ultrasonic Sensor is a highly popular and cost-effective distance measurement module designed for Arduino, Raspberry Pi, ESP8266, ESP32, robotics, automation, and IoT projects. Using ultrasonic sound waves at 40kHz, it accurately measures the distance between the sensor and an object without physical contact. It is ideal for obstacle avoidance robots, parking systems, water level monitoring, distance measurement devices, and smart automation applications.
Key Features
- Non-contact distance measurement
- Measuring range: 2cm to 400cm
- High accuracy up to ±3mm
- Operating voltage: 5V DC
- 40kHz ultrasonic frequency
- Simple 4-pin interface (VCC, Trig, Echo, GND)
- Low power consumption (~15mA)
- Compact and lightweight design
- Compatible with Arduino, Raspberry Pi, ESP32, ESP8266, STM32, and other microcontrollers
Technical Specifications
- Operating Voltage: 5V DC
- Operating Current: 15mA
- Frequency: 40kHz
- Detection Range: 2cm – 400cm
- Accuracy: ±3mm
- Measuring Angle: <15°
- Dimensions: 45 × 20 × 15mm
Pin Configuration
-
VCC – Power Supply (5V)
-
Trig – Trigger Input
-
Echo – Echo Output
-
GND – Ground
Applications
- Obstacle Avoidance Robots
- Distance Measurement Systems
- Water Level Monitoring
- Smart Parking Systems
- Security and Alarm Systems
- Industrial Automation
- Home Automation Projects
- Drone and Robotics Navigation
Package Includes
- 1 × HC-SR04 Ultrasonic Distance Sensor Module
