The LED display is coming along great! It's not only supposed to be the crown jewel of the keyboard but also highly functional displaying the 3 letters that identify the actual application-specific keymap along with 3 status indicator icons.
With its numerous layers this could be a project of its own. We've gone through a number of iterations to get everything right which sometimes was outright frustrating but it was worth all the trouble. The most challenging part of it is making everything fit together because there's not much space left between the inidividual LEDs.
Currently a LED matrix column that should drive 6 LEDs is miswired. The alignment of the LEDs will also be changed from diagonal to vertical to maximize space usage.
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[…] written before despite its small size designing the LED display was a vast undertaking. As it turned out we started out the wrong way. After designing and fabricating all the layers […]