Creality Board 4.2.2 and 4.2.7 Schematics

Very cool find here: Ender 3 V2 Schematic for 4.2.2 board · Discussion #814 · Jyers/Marlin · GitHub
PDFs also attached here for reference

Creality.4.2.2.-.Schematic.28-5-22.pdf (188.1 KB)
Creality.4.2.7.-.Schematic.28-5-22-1.pdf (193.7 KB)

In addition the 4.2.2 board apparently can come with different driver chips:

Creality V4.2.X Board Driver Codes

The letters written on the card reader slot (with marker) are different depending on which stepper driver it has.
These are for the ones 4.2.X board with STM32F103RET6 controller:

C = HR4988
E = A4988
A = TMC2208
B = TMC2209
H = TMC2225


Credits to the folks in the above link. Must have been an insane work to establish these schematics. :+1:


Beware, probably due to the chip shortage, newer Creality boards use silent steppers only on X and Y, but use A4988 or similar “loud” steppers on Z and E. I am not sure whether they have two letters on the microSD slot, but keep this in mind :slight_smile:

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FYI, I do have 2 letters on the micro sd. Rc.