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The Levinson is like the Let's Split but with LED backlight and 2u key support.
Note: PCB Kit no longer includes LED support components to reduce price, as not everyone used these. The MOSFET and resistors for the MOSFET are available separately via the LED Support Add-on Kit.
The PCB Kit includes the following:
2 Levinson PCBs
2 Push buttons for reset
2 TRRS jacks
48 1N4148 through-hole diodes
2 4.7kΩ resistors for I2C
Each half of the board is a 4x6 matrix, but there is the option to have a 2u key in the innermost corners in place of 2 1u keys. The spot for the 2u has holes for Cherry PCB mounted stabilizers.
Continuing the theme of prominent people in signal processing and digital communications, the board is called the Levinson, after the Levinson-Durbin recursion algorithm. There also happens to be the Split Levinson recursion as well, which fits nicely into the world of split keyboards.
The Levinson uses QMK for its firmware, and the code for it has been merged into the main codebase. You can find it here: QMK - Levinson directory.