0

Decimal to Binary Converter (Arduino)

An Arduino-based decimal to 4-bit binary converter that increments the value on a button press and displays the binary output using LEDs.

GitHub

This project is an Arduino-based decimal to binary converter that uses a push-button to increment a decimal number (0–15) and displays its 4-bit binary equivalent using four LEDs.

Components Used

  • Arduino Uno (or compatible board)
  • 4x LEDs
  • 4x Resistors (220Ω)
  • Push-button
  • Breadboard & Jumper wires

How It Works

  • Press the button to increment the decimal number
  • The number cycles from 0 to 15 and then resets
  • The 4-bit binary representation of the current number is displayed using the LEDs

Logic

  • On every rising edge (button press), the decimal value is incremented
  • A function decimalToBinary() converts the value to binary
  • The binary output is displayed using digitalWrite() on four LEDs

Pin Configuration

  • LEDs: Pins 2–5
  • Button: Pin 6

Explore the source code on GitHub: DeciToBi Project.