Keyer Schematic Repack Work | K3ng
Add 0.01uF ceramic capacitors across the DIT and DAH lines to ground to prevent "ghost" keying in high-RF environments.
The most critical part of "repacking" is editing the configuration files in the K3NG GitHub repository to match your hardware: keyer_features_and_options.h
: Use external buttons or a keypad to trigger pre-stored CW messages.
Use the or an ATmega328P surface-mount chip (AU) directly on your PCB to save space. k3ng keyer schematic repack
Uncomment #define FEATURE_POTENTIOMETER .
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
: Connections for iambic paddles, a speed potentiometer, and a "Command" button. Feedback/Sidetone Uncomment #define FEATURE_POTENTIOMETER
The is the preferred choice for repacked designs due to its small footprint and built-in USB port. Pin D2 : Connected to the Left (Dot) paddle. Pin D5 : Connected to the Right (Dash) paddle.
Knowing this, I can give you advice on the best, most compact Arduino board to use, or even suggest a pre-made PCB option . Getting Started with the K3NG Arduino CW Keyer 1
A of the K3NG schematic is all about condensing that modular complexity into a single, reliable blueprint. Whether you are building on a breadboard or designing a custom PCB, here is the definitive guide to the K3NG keyer hardware architecture. 1. The Core Processor: Arduino Nano vs. Uno If you share with third parties, their policies apply
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Getting Started with the K3NG Arduino CW Keyer 1
The refers to a comprehensive hardware modernization of the classic open-source K3NG Arduino CW Keyer code . As of April 2026, these "repacks" typically involve transitioning from basic breadboard designs or older ATmega328P (Arduino Uno/Nano) setups to more powerful Arduino Mega 2560 or custom SMD-based PCBs to accommodate the massive feature set of the code . The Core Story: Hardware Evolution
A repack focuses on the Arduino Nano or Pro Mini for its small footprint. The goal is to strip away the "feature creep" of the full library and provide a rock-solid, portable foundation. 1. The Microcontroller Arduino Nano (ATmega328P). Power: 5V via USB or 7-12V via the VIN pin. Clock: 16 MHz (standard on most Nanos). 2. The Keying Circuit (Rig Interface)
