Microkeyer is an pocket sized Morse code keyer based on the Arduino Pro Micro board. Use it to transform any iambic paddle key into a USB input device for phones and computers.
- Arduino Pro Micro (physical size 17,9 mm x 33 mm)
- 4 x M3 brass threaded inserts
- 4 x M3 x 5 mm hex socket cap screws
- 2 x 10 kΩ resistors
- Piezo buzzer
- 3,5 mm stereo jack (barrell shape, diameter 8 mm)
- 3D printed enclosure (see provided STL file)
- Connect buzzer to pin 14 and ground.
- Connect stereo jack tip and middle connector to pins 6 and 7 with pull-op resistors.
- Connect stere jack sleeve to ground.
