Iris Keyboard - PCBs for Split Ergonomic Keyboard

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!

Stocking status updates can now be found here: Status Updates

Item Notes

Iris PCBs with on-board controller and USB-C port. Just solder in your switches and you're done!

Item Contents

• Left half PCB
• Right half PCB

Items needed for Build:

• Iris PCBs (this item)
• Iris Plate Kit
• TRRS 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 encoders and knobs (optional)

Rev. 4 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
• With VIA configurator, you can reprogram the board without needing to know how to setup QMK and/or QMK Toolbox
• Demo video of VIA

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.

Build Guide

Build guide can be found here: Iris Rev. 3 & 4 Build Guide 

Firmware

The Iris uses QMK for its firmware, and the code for it is here: QMK - Iris directory.

Previous versions of PCBs

The previous Rev. 2 PCB has now been discontinued. However, it will be stocked at another vendor in the future, stay tuned!