Iris Keyboard - PCBs for Split Ergonomic Keyboard

Iris Keyboard - PCBs for Split Ergonomic Keyboard

Regular price $19.99 $17.99 Sale

Sign up to be notified when this is restocked!

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

Current versions of PCBs:

  • Normal version (MX/Alps): 2.8 (latest change: staggered pads for Pro Micro header pins to allow for press fitting and staggered pads for ICSP header)
  • (Discontinued) Kailh Low-Profile version: 2.5-KLP (does not have the staggered pads like 2.7)
  • Soon! Rev. 4: Similar to the Rev. 3, but with added Choc support and rotary encoder option relocated to the upper thumbs of both halves

Note on Iris Choc/Kailh Low-Profile PCBs:

  • Do not use the Peel-A-Way sockets with these PCBs to socket the Pro Micro, as there is not enough clearance between the PCB and top plate. Installing the sockets will cause the sockets to hit the underside of the top plate, causing shorts.
  • Use the Choc/Kailh low-profile compatible plates, due the the different cutout shape needed and plate thickness

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 Iris PCBs
  • 2 Push buttons for reset
  • 2 TRRS jacks (no need to buy separately)
  • 56 1N4148 diodes
  • 2 4.7kΩ resistors


    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.

    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!

    Many thanks to Lewis Ridden (/u/GAMING_FACE) for coming up with this design.

    The Name

    Named after Iris, the goddess of the rainbow and messenger of the gods. The curvature of the top row is something like a rainbow, and keyboards are used to send messages. 


    QMK Firmware

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


    Case parts are available here: Iris Plates/Cases

    Here's the case files can be found here: Iris Case Files

      The kerf setting was set to 0.15mm for use with Lasergist and Ponoko.

      Items needed for build

        Here is the build guide for the Iris: Iris Build Guide.