HC-SR04 Ultrasonic Sensor

HC-SR04 Ultrasonic Sensor

Specifications

• Model: HC-SR04
• Working Voltage: 5V DC
• Static Current: Less than 2mA
• Output Signal: Electric frequency signal
  • High-level: 5V
  • Low-level: 0V
• Detection Distance: 2cm - 450cm
• High Precision: Up to 0.3cm
• Input Trigger Signal: 10us TTL impulse
• Echo Signal: Output TTL PWL signal
• Frequency: 40000 Hz
• Sensing Angle: 15°
• Sensor Type: Ultrasonic
• Output: Digital Sensor
• Dimensions:
  • PCB size (LxW): 45mm x 20mm
  • Sensor cover diameter: 16mm

Features

• Measures distance within a wide range of 2cm to 450cm
• Stable performance and accurate distance measurement
• High-density and small blind distance
• Compact and handy build
• Not affected by sunlight or black material like Sharp rangefinders
• Useful for applications such as measuring object distance, water depth measurement, obstacle detection for robots, and parking assist systems.

Wiring

• +5V: Positive power supply
• Trig: Control signal input
• Echo: Receive signal output
• GND: Negative power supply

This sensor module is versatile and suitable for various distance measurement and obstacle detection applications in robotics and automation