CMOS Super Keyer
- Home made keyer
with 8 memories, auto spacing, adjustable speed & weighting, separate paddle and key inputs, beacon mode, positive or negative keying, fuse, extremely low power requirements, and a bullet proof housing by AA5TB
- The Vocal Keyer
is a stand-alone voice keyer
for your radio. It can be built with two 16-second or four 10-second recordable messages by KG4JJH
AVR Butterfly Keyer
- The Atmel AVR Butterfly is a credit card sized board which contains an AVR MEGA169 processor, a six character LCD display, a five way joystick navigation switch, a piezo speaker, a 3 volt lithium battery cell for power and a few other odds and ends.
- The PIC Keyer
is a full-featured Morse code keyer
which has been programmed into a PIC 16F88 Microcontroller by W7GC
- The M0KGK keyer
with variable speed and weight controls utilising a low cost PIC microcontroller.
CW Keyer with WinKey emulation
- A CW PIC based keyer
[16F688] which can be used in WinKey emulation mode, works with CW software that supports WinKey, or use with any terminal type program. Hex code is FREE.