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
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:
