Did anybody try to mod their ErgoDox EZ with a custom LED array?

Yes, definitely and thank you for all your help with troubleshooting the issue. I’ll continue to work on the power issue and will also post all the details.

Thank you again!

P.S. Currently I’m using 5v 16mhz pro micro, I also have a 3v 8mhz pro micro. I’ll give that a try to see if that worksout better.

Sorry to necro this thread, but do you still have those extra PCBs lying around? I’m local-ish and would love to buy them from you, as parts to build it myself are hard to get right now. Please shoot me a DM if you’re up willing.