So go ahead. Download a repack, breadboard the circuit, upload the firmware, and tap out your first “CQ CQ CQ DE YOURCALL.” The bands are waiting. Have you created or used a K3NG keyer schematic repack? Share your experience and links in the comments or on the K3NG software discussion group. Together, we can repack the future of open-source keying.
A thoughtful, well-executed liberates that potential. Whether you download one from a GitHub fork or patiently redraw your own, using a repack means spending less time guessing wiring and more time sending perfect CW. k3ng keyer schematic repack
However, there is one persistent frustration that unites newcomers and experienced builders alike: So go ahead
In late 2024, Anthony Good (K3NG) expressed interest in merging community repack contributions into the main repository. If successful, future keyer builders will no longer need to hunt for scattered diagrams. Share your experience and links in the comments
Until then, the K3NG Keyer Schematic Repack remains a grassroots hero—a testament to the DIY spirit of ham radio, where clarity and sharing matter as much as the code itself. The K3NG keyer is one of the most rewarding projects in amateur radio. It transforms a $5 Arduino into a professional-grade contest companion. But its potential has been bottlenecked by schematic fragmentation.
| Function | Uno/Nano Pin | Mega Pin | Firmware #define | |----------------|--------------|----------|-----------------------------| | CW Output | D13 (or D8) | D13 | #define cw_output_pin 13 | | Paddle Left | D3 | D3 | #define paddle_left_pin 3 | | Paddle Right | D2 | D2 | #define paddle_right_pin 2 | | Speed Pot | A0 | A0 | #define speed_pot_pin 0 |
The official K3NG repository, while brilliantly maintained in code, presents its hardware schematics as a scattered collection of PDFs, EAGLE files, and hand-drawn diagrams spread across multiple versions and forks. This is where the concept of the enters the spotlight.