Uncomment #define FEATURE_WINKEYER to allow software like N1MM or HRD to control your keyer over USB.
RF and EMC considerations
Directly connecting an Arduino pin to a vintage or modern transceiver can destroy the microcontroller due to high voltages or reverse currents. This repacked interface uses optoisolators for absolute safety. k3ng keyer schematic repack
You can build a minimal version with just a few components or a massive, fully-featured unit. 2. The Core K3NG Keyer Schematic Repack: Basic Layout You can build a minimal version with just
Several projects tagged “K3NG” have repackaged the schematic into a polished, single-page SVG graphic, ideal for printing and framing above your workbench. This post is about the K3NG schematic—distilling it
This post is about the K3NG schematic—distilling it down to a clean, modular, buildable set of diagrams.
FEATURE_MEMORIES : If you want to store CQs or your callsign.