On my Lead CNC machine I am migrating from an Arduino GRBL setup to the Openbuilds BB X32 controller running GRBLHAL. I have been running my CNC with the limit switches set to normally closed (NC) and want to continue with this configuration with the BB X32 (see attached diagram). What setting should $5 be and can the BB X32 handle this or do I have to add pull up/down resistors? Thanks, Scott
No need no. Endstop inputs on BlackBox has pullups (in NC pulling it up to a HIGH state when triggered, switch pulls it DOWN when untriggered) and RC filter+Optocouplers
