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Ultrasonic Distance Measure Tool

Requires ,

This project creates a device that measures distances using ultrasonic waves and displays the readings on an LCD screen.

The tool works by sending ultrasonic pulses from a sensor, measuring how long they take to bounce back, and calculating the distance based on the speed of sound. The calculated distance is then shown on a 16×2 Liquid Crystal Display (LCD) in centimetres, with special handling for out-of-range readings.

Assembly Instructions

  1. Connect the LCD to the Arduino:
    • LCD RS pin to Arduino digital pin 7
    • LCD E pin to Arduino digital pin 6
    • LCD D4 pin to Arduino digital pin 5
    • LCD D5 pin to Arduino digital pin 4
    • LCD D6 pin to Arduino digital pin 3
    • LCD D7 pin to Arduino digital pin 2
  2. Connect the ultrasonic sensor to the Arduino:
    • Trigger pin to Arduino digital pin 12
    • Echo pin to Arduino digital pin 11
    • VCC to Arduino 5V
    • GND to Arduino GND
  3. Power on the board and observe the LCD displaying “Distance Tool” on the first line and distance readings on the second line.
  4. Point the ultrasonic sensor towards objects to measure their distance from the sensor.