K3ng Keyer Schematic Repack Jun 2026

| 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 |

: A 2N2222 NPN transistor circuit or a TTL-tolerant FET (like the ) used as a switch to key the transmitter Input Interface k3ng keyer schematic repack

K3NG Keyer is a world-renowned, open-source Morse code (CW) keyer project based on the Arduino platform. A "schematic repack" typically refers to community-driven efforts to streamline, document, or adapt the original extensive K3NG GitHub repository | Function | Uno/Nano Pin | Mega Pin

Regulatory and Practical Notes