ELECTRONICS & EMBEDDED
Digital Distance Meter
Measure object distance using ultrasonic sensing and display it on an OLED/LCD.
LevelSchool / Beginner
Duration1–2 Weeks
Components₹900–₹1,700 CodingLow
Project overview
Measure object distance using ultrasonic sensing and display it on an OLED/LCD.
Measure object distance using ultrasonic sensing and display it on an OLED/LCD.
Components / materials required
✓Arduino
✓HC-SR04 ultrasonic sensor
✓OLED/LCD
✓Buzzer optional
What the project demonstrates
✓Distance display
✓Near-object alert
✓Metric units
Suggested build plan
01
Ultrasonic timing
Measure echo pulse.
02
Distance calculation
Convert time to distance.
03
Display
Show centimetres.
Learning outcomes
✓Understand time-of-flight sensing
✓Perform simple calculations
✓Create visual alerts