Stackable: running 2 motors in the same time
Pinouts: At this point PowerShield has fixed pinout.

how to play with the Pinouts for second stack?

I connected a 24V power supply and drove it through an ESP32. However, the circuit traces on the circuit board burned out before the current reached 10A. Should the design of this circuit board be further optimized? Otherwise, it won't be able to handle the intended 30A current.

I have get the board and fabricate it according to the tutorial, but I found the open_loop_velocity_control.ino does not work.
Is there any code for the powershield?

I've tried uploading both the BLM and the pick and place spreadsheets for JLCPCB, however the software doesn't recognize the information. Is there a way to reformat them?

/schematic.pdf is not a schematic. Please add an actual schematic for those of us who don't want to fire up a Windows VM just to run the Altium viewer.

The version of INA240 is not specified in the BOM. According to the datasheet there are 4 versions. To clarify, is it INA240A2, since that is what is used on the regular FOC shield?