The Micro Keyer is a small morse code keyer that can be used as a practice oscillator and computer keyer. It supports Iambic A, Iambic B, bug emulation, and straight key keying modes.
- There is a problem with the V1.0 board where the display does not turn off when the device is turned off with the power switch.
- Do not solder the jumper pad that connects the display to power.
- Connect a jumper wire between top leg of Q1 (3V) to the left side of the power switch.
- Solder a wire from the center pin of the switch to the power pin on the display.
(Note: the two side pins on the switch are not connected to anything so it is okay if the jumper wire is making contact with them.)





