I have a Geeetech A30T printer with a Smartto board (that is what they call it, it's actually labeled GTM32_103_V1). It comes with a corresponding firmware from Geeetech. Unfortunately, the software ...

I am trying to adapt a Geeetech A30T to Marlin and one of the issues is the (undocumented) 3.2" touchscreen board (see attached a picture of the board). It is based on STM32F103VET6. On the visible ...