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A cw keyer based upon the Raspberry Pi Pico.
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README.md

RaspiKeyer

Since I really like the Raspberry Pi Pico, I have started building a cw keyer based upon this microcontroller.

Note: The keyer is in a very early stage. If you just want a full featured cw keyer firmware, you should better choose another project.

Features (planned/done):

  • Iambic Paddle
  • Keying modes: Iambic A, Iambic B
  • Straight key
  • Sidetone (buzzer)
  • CW out (straight key input on TRX)
  • Setting speed with rotary knob
  • LCD Display showing at least:
    • Current speed
    • Keying mode (Iambic A/B, Straight)
  • Change keying mode via button
  • Logging and Contest Program Interfacing (WinKeyer emulation)
  • Support for three text memory buttons
  • Line out (sine wave) -> long term; not that easy