The nanoKeyer is an Arduino Nano based CW Contest Keyer.

Key Features (K3NG Firmware):
  • CW speed adjustable from 1 to 999 WPM
  • K1EL Winkeyer interface protocol emulation
  • Supported by major logging apps (e.g. N1MM, HRD, etc. in K1EL Winkeyer mode via USB port)
  • SO2R compatible through K1EL Winkeyer 2 protocol emulation
  • Command mode for using the paddle to change settings, program memories, etc.
  • PS2 Keyboard Interface for CW keyboard operation without a computer
  • PTT with configurable lead, tail, and hang times
  • Up to 12 memories with macro and serial number support
  • QRSS and HSCW
  • Iambic A and B, Ultimatic and Bug mode
  • Farnsworth Timing, Autospace and Wordspace Adjustment
  • Keying Compensation, Dah to Dit Ratio, Weighting adjustment
  • Non-volatile storage of most settings
  • and much much moreā€¦.