N1AW Arduino Keyer

Objectives:

CW keyer with accurate speed setting.

Report speed using audible Morse.

Change speed easily.

Get familiar with Arduino

Standard Arduino

Freeduino RBBB

USB Interface for RBBB

RBBB mounts on breadboard

Complete Keyer

Connectors: Stereo jack for paddles Phono jack for key line to xmtr

Operation

This version: initial speed 20 wpm. Could save last speed to initialize at next startup

On startup speed reported as Morse Paddles generate dits and dahs Control switch (push button) reports speed Control + dit paddle → decrease speed Control + dah paddle → increase speed Hear 2 dits for each 1 wpm + or - Xmtr not keyed for control operations

Files:

http://www.fcarc.org/Files/N1AWkeyer/ArduKeyer.ppt

http://www.fcarc.org/Files/N1AWkeyer/Morse9.ino

Al Woodhull N1AW n1aw@arrl.net