Morse Practice is a Morse code keying trainer. It lets you practise sending Morse code by pressing and holding a key button, then decodes what you entered and displays the corresponding character. Audio feedback plays a tone through the speaker while the key is held down.

Controls

• KEY button (centre of screen): Hold to key — release to decode. Works with both the touchscreen and the Select hardware button.
• CLR button: Clears the decoded text display.
• Volume: Audio output level for the keying tone.

How it works

The app measures the duration of each key press and gap:

• A short press is decoded as a dit (·)
• A long press is decoded as a dah (−)
• A gap between presses ends the current symbol and looks it up in the Morse table
• The dot/dash threshold is determined automatically from your keying rhythm using a statistical split of recent pulse durations

The current dot-dash sequence is shown on screen, and the decoded character appears below it when the inter-character gap is detected. Decoded characters accumulate in the scrolling text area below.