K3ng Keyer Schematic Repack _best_ Now

If your rig doesn't provide a sidetone, or you want to practice "off-air," you need an onboard piezo or speaker.

: A popular PCB kit that fits the Arduino Nano, designed to be compact and efficient. K5BCQ Version : A comprehensive shield board designed for the Arduino Mega that supports almost every feature in the K3NG code. SMD Repack (Joan Perelopez) k3ng keyer schematic repack

: An Arduino Nano is great for basic portable builds, but use an Arduino Mega 2560 if you want the full suite of features like a CW decoder and large memories. If your rig doesn't provide a sidetone, or

A small piezo speaker or speaker driven by a transistor from an Arduino digital pin (often D11). Key Build Options SMD Repack (Joan Perelopez) : An Arduino Nano

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.

Overlooked in many fragmented schematics, a repack includes: