Geeetech

Ok, i measured it myself.. Find attached the pinout.

VCD is +24V
VCC is +5v
PWM? is the PWM-Controlled ( - ) ground of the Mainboard for the Heater 0
Fan0 GND is the PWM-Controlled ( - ) ground of the Mainboard for the Cooling fan
PGND is GND for all stuff that always works ( Like Extruder-Cooler ...

Hey,

i could not find any resources to the "new" Mainboard GT2560_v4 and the Expansion board used in the A20m .

Are the schematics available somewhere?
I want to replace the GT2560 with a 32Bit board and need to unsderstand the cabeling.

Thanks, Thomas