I have connected a Model F USB (New Models) controller bought from Model F Labs with firmware version 0.9.1 on it and I have an issue with lock lights pannel connected to it. The issue is that when lock is active the actual indication is switched off, and when lock is off the light is on.
Aleksei Answered question July 18, 2020
Hello, please do head over to the Deskthority forum for all technical questions. I can confirm with my LED testing on xwhatsit controllers (great way to add LED lock lights to an F77 or F62) over the years that I have not seen the behavior you describe. Please note that the pinout is reversed from what is in the xwhatsit manual as per the product page description:
https://www.modelfkeyboards.com/product/xwhatsit-beam-spring-or-model-f-controller/
admin Answered question July 17, 2020