Ultrasonic Sonar Sensor HC-SR04

Specifications:

• Operating Voltage: 5V DC
• Operating Current: 15mA
• Ultrasonic Frequency: 40 kHz
• Max Range: 4 meters (13 feet)
• Min Range: 2 cm (0.8 inches)
• Accuracy: ±3 mm

Power:

• Supply Voltage: 5V DC
• Current Consumption: Approximately 15mA

Input and Output:

• Input: Trigger pulse (10µs minimum)
• Output: Echo pulse proportional to the distance to the object
  • Trigger Pin: Sends a signal to initiate measurement
  • Echo Pin: Receives the reflected signal to calculate distance

Physical Characteristics:

• Dimensions: 45mm x 20mm x 15mm
• Weight: Approximately 10 grams
• Material: PCB with ultrasonic transducers

Additional Features:

• Simple Interface: 4 pins (VCC, GND, Trigger, Echo)
• High Precision: Accurate distance measurement with low power consumption
• Wide Detection Range: Can measure distances from 2 cm to 4 meters
• Easy Integration: Suitable for various applications including robotics, obstacle detection, and distance measurement
• Compatibility: Works well with microcontrollers like Arduino, Raspberry Pi, and other development platforms

Usage: The HC-SR04 ultrasonic sensor is commonly used in robotics and automation projects for distance measurement and obstacle avoidance. It emits an ultrasonic wave and measures the time it takes for the echo to return, calculating the distance based on the speed of sound. The sensor is easy to interface with various microcontrollers, making it a popular choice for hobbyists and professionals alike.