OK, have a Tronxy X5s-400 and considering upgrading the control board so I can incorporate some new features in Marlin 2.x and have a better control board.

I have a general idea of how to go about it, but want a base set of parameters to incorporate. Sometime in the past, I remember there was a G or M code that I could put in a terminal line that would spit out all the variables. Unfortunately, I either didn't save the info or have lost it somehow and now can't remember how to retrieve it.

Can somebody please tell me the G/M code to use so I can figure out the basic info such as steps/mm, type of thermistor etc.???
Thanks in advance.