K3ng Keyer Schematic ((better)) Direct

The K3NG Keyer is a highly versatile, open-source Morse code keyer based on the Arduino platform, developed by Anthony Good (K3NG). Because it is designed to be modular and feature-rich, the "schematic" can range from a simple breadboard setup to complex PCB designs incorporating LCDs, rotary encoders, and multi-rig switching. Core Schematic Components

Most radios (Icom, Yaesu, Kenwood) have a "key line" that sits at +5V, +8V, or even +12V. The Arduino can only handle 40mA and 5V. Hooking it directly will release the "magic smoke." k3ng keyer schematic

The schematic begins with the paddle inputs (Dit and Dah). These are connected to digital pins on the Arduino, pulled high using internal or external resistors. When the operator presses a paddle, the pin is grounded, triggering the code to generate the appropriate Morse element. Keying Circuit: The K3NG Keyer is a highly versatile, open-source

6. Schematic Example (Simplified)

Below is a textual representation of the core keying section (no LCD, no encoder): The Arduino can only handle 40mA and 5V

Overview of the K3NG Keyer Schematic