The Iris keyboard, a split ergonomic keyboard with 4x6 vertically staggered keys and 3 or 4 thumb keys. Time to stop stretching your thumbs out on the Ergodox! Note: Rev. 4 PCBs are discontinued, so please check out the Rev. 5 or Rev. 8 (hotswap) PCBs. New! Pre-built Iris Boards now available, click here! Case Compatibility The Rev. 4 PCBs are compatible with both LE (Legacy Edition) and PE (Phoenix Edition) case/plate parts. Note that LE and PE parts are not interchangeable with each other, due to different screw hole locations. Layout Each half of the board is a 4x6 matrix with the same vertical stagger as the Ergodox and with 3-4 thumb keys. The 2u thumb key can be replaced with 2 1u keys. The spot for the 2u has holes for Cherry PCB mounted stabilizers. Alternatively, a rotary encoder can be placed at the upper thumb key of each half. Many thanks to Lewis Ridden (/u/GAMING_FACE) for coming up with this design.
