M5Cardputer CW Trainer
An interactive, portable Morse Code (CW) trainer developed for the M5Stack Cardputer. This tool is designed for amateur radio operators (Hams) to practice listening, sending, and mastering common CW abbreviations and prosigns on the go.
🚀 Features
Four Specialized Modes:
Listening Mode: The device plays a random character in Morse code; you must identify and input it using the keyboard.
Sending Mode: Practice your timing by sending Morse code using dedicated keys (Z for Dit, M for Dah).
Abbreviation Challenge: An interactive quiz using the CWops standard list. Listen to the abbreviation (e.g., QRP, 73, CQ) and type the answer.
Free Mode (TX): A "sandbox" mode where you can type full sentences in Morse code. It decodes and displays your text on the screen in real-time.
Optimized UI: Fully centered text and high-contrast colors designed specifically for the Cardputer's 1.14" TFT screen.
Audio Feedback: Real-time 700Hz tone generation using the Cardputer's built-in speaker.
Portable Practice: No external paddles required—uses the physical keyboard for input.
🛠 Hardware Requirements
M5Stack Cardputer (ESP32-S3 based)
(Optional) MicroSD Card if using with M5Launcher
💻 Installation
Option 1: Arduino IDE (Recommended)
Install the ESP32 Board Manager in Arduino IDE.
Select M5Stack StampS3 as your board.
Install the following libraries via Library Manager:
M5Cardputer
M5Unified
Set USB CDC On Boot to Enabled in the Tools menu.
Copy the code from CW_Trainer.ino and hit Upload.
Option 2: M5Launcher
Compile the code to a .bin file.
Copy the .bin file to your SD card.
Launch it directly from the M5Launcher interface.
🎮 How to Use
Navigation: Use the . (period) key to scroll through the menu and Enter to select a mode.
Morse Input: - Z key = Dit (.)
M key = Dah (-)
Confirmation: Press Enter to decode a character or confirm an answer.
Go Back: Press Backspace at any time to return to the main menu.
Space: Use the Spacebar in Free Mode to add gaps between words.
📚 Credits & Standards
Abbreviations: Sourced from the CWops Abbreviations List.
Developer: Hüseyin EROL, TB3NHM
Hardware: Powered by M5Stack.
⚖️ License
This project is open-source and available under the MIT License.
Download: https://github.com/TB3NHM/CW-Trainer-for-CardPuter
