Ultrasonic Range Finder Sensor

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Original price was: 249.00₹.Current price is: 199.00₹.

The Ultrasonic Range Finder Module is a distance measuring sensor using sonar technology, offering accuracy and stability. It operates with a wide detection range from 2 cm to 450 cm, making it suitable for various applications in robotics, automation, and IoT projects.

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  • Operating Voltage: 5V(DC)
  • Detection Distance: 2 cm to 450 cm
  • Output Signal: Electric frequency signal, high level 5V, low level 0V
  • Working with ARM ARDUINO 8051 AVR
  • Static Current: Less than 2mA


The Ultrasonic Range Finder Module is a highly accurate distance measuring sensor designed for various applications. It utilizes sonar technology to precisely measure distances to objects, offering stable readings and easy integration with Arduino, AVR, ARM, and 8051 microcontrollers. With its versatile features and reliable performance, it’s an essential component for robotics, automation, and sensing projects.

Components Included:

  • Ultrasonic Range Finder Module
  • Wiring connectors (if applicable)


  • Robotics: Obstacle detection, autonomous navigation
  • Industrial automation: Distance monitoring, object detection
  • IoT projects: Smart parking systems, security systems
  • Home automation: Proximity sensing, gesture recognition

Working Principle:

  1. Triggering: Apply a 10us TTL impulse to the TRIG pin to trigger ranging.
  2. Transmission: The module sends eight 40kHz square waves automatically.
  3. Reception: If an object is detected, the ECHO pin outputs a high-level signal.
  4. Distance Calculation: The duration of the high-level signal corresponds to the time taken for the ultrasonic wave to travel to the object and back. Distance is calculated using the formula: Distance = (Duration of high level signal) x (Speed of sound) / 2.

Overall, the Ultrasonic Range Finder Module offers precise and reliable distance measurement capabilities, making it an indispensable tool for various electronic projects and applications.