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!
Differences with Rev. 5
The difference between this Rev. 5 PCB and the Rev. 4 PCB is that the TRRS jack for connecting both halves together have been replaced with USB-C.
Also, due to the replacement of TRRS with USB-C, a different set of plates and case parts are needed, so older parts (Legacy Edition) can not be used. The newer plates/cases (Phoenix Edition) will be compatible with Rev. 5 and the upcoming Rev. 6.
New! Pre-built Iris Boards now available, click here!
Iris PCBs with on-board controller and USB-C port. Just solder in your switches and you're done!
- Left half PCB
- Right half PCB
Items needed for Build
- Iris PCBs (this item)
- Iris Plate Kit
- USB-C to USB-C Cable
- Iris middle layer (optional)
- 54-56 Switches (MX, Alps, or Choc)
- USB-C Cable
- 2u PCB-mount MX stabilizers (optional)
- LEDs (optional), 2x3x4mm or 1.8mm are okay
- Rotary Encoder and knobs (optional)
Rev. 5 Features
- On-board ATmega32u4 controller
- Switch support: MX, Alps, and Kailh Choc
- USB-C port
- 6 RGB underglow LEDs per half (12 total)
- In-switch LED support
- Option for rotary encoders at upper thumb key on each half
- Pre-flashed with QMK Firmware and VIA configurator support
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.
56 key switches are needed for this build.
Build guide can be found here: Iris Build Guide
The Iris uses QMK for its firmware, and the code for it is here: QMK - Iris directory.
The default keymapping that the board is pre-programmed with can be found here: Default Keymaps