Do you have any else plugged in? Sure the power polarity is correct, I have messed that up myself.
Picture?
Esp facing the right direction?
This is all very new so lots of basic questions I’m sorry.
I just know I have tested nearly every board that has left with inputs and outputs and at least one stepper. A couple left without drivers plugged in are the only ones not fully tested with steppers but I test the web and I/O.
The ESP board I inserted was not inserted correctly, only the row of pins on the bottom were inserted… (with the drivers up), reinserted and now all is well… Got lucky with the one endstop I tested with $limits…