A CW encoder written for the ARRL and presented during Hamvention 2024. BOM and Circuit Diagrams Available in this file. Looking forward to seeing where people take this project.

KA-Keyer is a simple keyer with an emphasis on high-speed operation. It can be considered a derivative from the Open CW Keyer MK2, an Arduino-based CW keyer from OK1CDJ. This is the second keyer ...

While many of us have banished land line telephones from our houses, there are still quite a few people who utilize POTS lines today. These analog phone systems use Dual Tone Multi Frequency (DTMF) ...