Nano Morse Code Keyer Kit with Arduino Nano + LED

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 out secret messages in dots and dashes, just like early telegraph operators. This kit transforms a simple Arduino Nano into a fully functional Morse code keyer. Two tactile buttons act as a paddle: one creates a dit (dot), the other a dah (dash). A potentiometer lets you dial in the speed, while LEDs and a buzzer give you instant visual and audio feedback. It’s a hands-on way to explore microcontrollers, timing logic, and a piece of communication history.

What You'll Build

You'll wire up an Arduino Nano on a breadboard and program it to recognize button presses, decode them into perfectly timed dits and dahs, and output the pattern through a blinking LED and a passive buzzer. The result is a portable practice keyer you can use to learn Morse code, test your speed, or even connect to a radio later. No soldering – just plug, upload, and tap.

What You'll Learn

• How to read button inputs and implement debounce logic
• Using millis() for non-blocking timing of dits and dahs
• Generating sound with tone() and noTone() on a passive buzzer
• Reading an analog potentiometer to control Morse speed in real time

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for young learners aged 5-15, especially those exploring electronics in CBSE curriculum or ATL Tinkering Labs. Parents will love the screen‑off coding time, and educators can run a complete beginner workshop in a single session. It’s also great for hobbyists new to Arduino Nano form factors or anyone curious about Morse code and radio communication.

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.