| 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 |
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. k3ng keyer schematic repack
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. | Function | Uno/Nano Pin | Mega Pin