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5x7 70% Split Ortholinear keyboard, more keys for more fun!
The PCB Kit includes the following:
2 Viterbi PCBs
2 Push buttons for reset
2 4.7kΩ resistors for I2C
2 TRRS jacks (no need to buy separately)
70 1N4148 diodes
Each half of the board is a 5x7 matrix, but there is the option to have a 2u key in the lower left and right corners in place of 2 1u keys. The spot for the 2u has holes for Cherry PCB mounted stabilizers.
In place of the 5x1u keys on the bottom row, 4x1.25u keys can be used instead.
There's also a spot on the PCB for a pushbutton switch to reset the Pro Micro for flashing. No more taking a wire/tweezers/screwdriver to jump the Reset and GND pins!
As usual with these split ortho boards, we had to christen the board with a term from bakingpy's past. He used to implement the Viterbi Algorithm a number of times to take 2N received bits from a communications signal and figure out the original N bits it was encoded from. So here, signals from 2 board halves, decoded into one board, it's like this thing named itself.
The Viterbi uses QMK for its firmware, and the code for it has been merged into the main codebase. You can find it here: QMK - Viterbi directory.
Here's the case files for a sandwich-style case are still under development.
The kerf setting was set to 0.15mm for use with Lasergist and Ponoko.
Items needed for build
35 Diodes per PCB (through-hole and SMD diodes supported)