I have been working a a few builds lately and one of them has ended up becoming my daily driver at work right away. I am talking about the Iris split ortho keyboard from keeb.io.
The keyboard was actually one I won in a charity raffle on/r/mk last christmas, but it has just been sitting on my desk in pieces due to lack of time.
I finally got around to build it and it turned out better than I hoped for.
Building the thing
My Iris kit consisted of two pcb’s, stainless steel top and bottom plates and acrylic white middle layers. Besides this It needs the usual gang of two Pro micros, a lot of resistors, diodes, LEDs etc.
Full list of parts:
- 2 sets of plates (top+bottom for each hand)
- 2 Iris PCBs
- 2 TRRS jacks
- 1 TRRS cable
- 2 reset switches
- 4 4.7kΩ resistors
- 2 used for I2C
- 1 used for LED support on left half
- 1 used for LED support on right half
- 56 1N4148 diodes – (I used through-hole but smd is supported)
- 56 470Ω resistors (for LED backlight – I actually ended up using 510 ohm instead)
- 56 LEDs (I used red 4x3x2 LEDs)
- 2 N-channel MOSFETs (for LED control)
- WS2812B RGB LED Strip with 10 LEDs and cut in two (for underglow)
- 2 Pro Micros
- 56 switches (I used Cherry MX clears)
Note: I preprogrammed my two pro-micros with QMK firmware before soldering them on. This is always a good idea to do to make sure the pro micro actually work (can be programmed)
The layout I used for the firmware can be found here: My Github Repo
Build steps in pictures