Build a Morse Code Encoder & Decoder with Arduino Nano in Hours

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Imagine tapping a button to send secret messages using dots and dashes—and having an Arduino instantly translate them into letters on a bright OLED screen. Then, flip the switch and let the Arduino encode any letter you type into flashing LED and buzzing sounds. This kit puts you in control of both sides of Morse code communication, all built by your own hands.

What You'll Build

You'll create a compact Morse code encoder and decoder system. Press the button in short and long pulses to input Morse characters; the Arduino decodes them and displays the text on the OLED. Switch modes and type a letter via a simple interface (or serial monitor), and the built-in white LEDs and piezo buzzer will output the Morse equivalent—so you can practice, teach friends, or even send messages across the room.

What You'll Learn

• Program an Arduino Nano to detect button press timing (dots and dashes)
• Implement Morse code lookup tables for encoding and decoding
• Drive an OLED display using I2C to show decoded text
• Control LEDs and a buzzer to produce visual and audible Morse signals

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for young tinkerers aged 10-12 curious about how computers talk, this kit aligns with CBSE Class 6-8 coding and electronics projects. It’s also ideal for ATL Tinkering Labs and hobby clubs at schools like DPS, Greenwood High, or Bhavans. If you're preparing for a science exhibition, this project teaches logic, timing, and I/O programming in a form that wows judges.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.