SudokuPad Pad
Portland, Oregon 2024-07-02
Description
The SudokuPadPad is a custom peripheral for Sven Neumann’s SudokuPad. It was created as a small token of appreciation for Simon Anthony and Mark Goodliffe of Cracking the Cryptic and a few of my favorite puzzle setters.
Hardware and Software
The keypad hardware is based on a very standard keyboard matrix design which scans four rows and columns looking for keypresses. The “brain” of the device is a Seeed Studio XIAO running a very simple Arduino sketch that emulates the appropriate SudokuPad shortcut when the corresponding key is pressed.
The PCB is an original design created in Autodesk Fusion 360 and manufactured by JLCPCB. The key switches are Cherry MX clones.
Final Prototypes
Printed Components
The enclosure and keys are original designs created in Autodesk Fusion 360. The enclosure is a two part print designed to snap together. The keycaps are two-color prints based loosely on the XDA profile. All parts were printed on a Bambu Lab P1S.