Digital Distance Counter with OLED Display

Digital Distance Counter with AS5600 Magnetic Encoder and OLED Display

 Project Description

This project is a high-precision digital distance counter based on an AS5600 magnetic angle sensor and an SSD1306 OLED display. It is designed to measure the distance traveled by a wheel with a known diameter, converting its rotation into meters, centimeters, millimeters, or inches, feet, and thousandths of an inch (mil).

 Main Components

• AS5600 Magnetic Encoder (12-bit) – detects the rotation angle of the wheel with high accuracy
• OLED SSD1306 128x64 Display – shows the measured distance in real time
• Arduino (Uno, Nano, etc.) – the main controller for the system
• Wheel with a circumference of 15 cm – attached to the shaft for motion tracking
• Two buttons:
  • Reset – resets the distance counter
  • Mode switch – toggles between metric and imperial unit modes

 Key Features

•  Accurate distance measurement based on the number of ticks read from the encoder
•  Supports reverse direction: distance increases only when the wheel rotates counterclockwise
•  Dual display modes:
  • Metric system: meters, centimeters, millimeters
  • Imperial system: inches, feet + inches, and mil
•  Mode switch button to toggle unit systems
•  Reset button to zero the measured distance
•  High resolution using 12-bit precision from the AS5600 (4096 steps per revolution)
•  Continuous real-time distance calculation
•  Clear and structured display: large text for main units, smaller text for subunits

 Possible Applications

• Measuring distances on surfaces (fabric, floors, terrain)
• Mobile robotics
• Handheld measuring tools
• Industrial process length tracking

Material and assembly.

The Arduino code has been uploaded to the Documentation section.

Electrical connections.