/tamatama

28 Key Dactyl with dual trackballs

Primary LanguageTypeScriptGNU General Public License v3.0GPL-3.0

tamatama

28 Key Dactyl with dual trackballs made with Cosmos Keyboard Generator

tamatama

Layout

Based on Arno's Engram v2.0 layout. A compact but full-featured and intuitive layout for programming and prose with chording for frequent words. Read more

Schematic

schematic

Firmware

https://github.com/dlip/qmk_firmware/tree/dlip/keyboards/tamatama

Bill of Materials

Keys and Switches

  • 28 1u Kailh Choc Keycaps
  • 28 Kailh Choc Switches
  • 2 34 mm (1.34") Trackballs
  • 6 3 x 6 x 2.5 mm Bearings
  • 6 3 x 8 mm Dowel Pins
  • 2 PMW3360 or PMW3389 Sensors Tindie
  • 28 1N4148 Diodes

Electrical

  • 2 WaveShare RP2040-Zero Boards
  • 2 PJ-320A TRRS Connectors
  • 1 Spool Wire Wrap or Magnet Wire

Mounting

  • 10 M3 x 6 mm Flat Head Screws For attaching the bottom plate and microcontroller holder
  • 2 M3 x 8 mm Flat Head Screws For attaching microcontroller holder through bottom plate
  • 12 M3 Screw Inserts

Other Parts

  • 2 Pair 3D Printed Components
  • 8 Rubber or Silicone Feet For stopping your keyboard from sliding
  • 1 Smile and Perspiration Building your own keyboard isn't easy