Morse Code Audio Trainer Kit with Arduino Uno
Morse Code Trainer Kit with Arduino Uno — Build, Beep, and Decode
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, hearing your buzzer beep with each press, and watching the decoded letter appear on a glowing LCD. This Arduino-powered trainer transforms two simple buttons into a working telegraph station. It’s a hands-on way to explore the language that connected the world before the internet — and it’s achievable in a single afternoon.
What You'll Build
You’ll assemble a complete Morse code practice tool that plays audible tones for each dit and dah, then displays the corresponding letter as you release the buttons. The build is solderless, using a breadboard and pre-cut jumper wires, so you can focus on the logic and hardware connections.
What You'll Learn
- How to read an Arduino Uno pinout and connect digital I/O devices
- Generating sounds with a passive buzzer using simple Arduino code
- Displaying characters on a 16x2 LCD via I2C communication
- Encoding and decoding Morse code patterns for letters A-Z
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Passive Buzzer | 1 |
| Tactile Button | 2 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 10kΩ Resistor | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 15 |
| 9V Battery Snap | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Young tinkerers aged 8+ curious about how pre-digital communication worked. Perfect for parent-child weekend projects, ATL Tinkering Lab activities, and school science exhibitions. CBSE students in Classes 6–10 will find it an engaging introduction to electronics and coding without needing any prior experience.
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.
What if I get stuck during the build?
Scan the QR code on your kit box to launch the AI companion. It knows every connection and code snippet for this project. You can also message us on WhatsApp for a quick assist from a real maker.
Do I need any prior coding experience?
None at all. The kit includes pre-written Arduino code, ready to upload. If you’re curious, the AI companion explains what each line does so you can tweak and learn as you go.
Can I use this kit to learn the whole Morse code alphabet?
Yes, the trainer supports all 26 letters. The buzzer gives you immediate audio feedback, and the LCD confirms every decoded character, making it easy to practice dot-dash patterns until they stick.
How is the power supplied?
The kit runs on a 9V battery (snap included) and can also be powered via USB from a computer for longer practice sessions without worrying about battery life.
Buttons input dits and dahs. Passive buzzer plays audio. LCD shows decoded character.
What's in this kit
- Arduino Uno R3
- Passive Buzzer
- Tactile Button x2
- 16x2 LCD
- I2C Backpack
- 10kΩ Resistors x5
- 400-pt Breadboard
- M-M Wires x15
- 9V Battery Snap
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items