Hi,
I just wanted to share my variant of the Ramps 1.4. I modded it little bit, so it is now capable of 24V. It uses a LM2575 to generate 5V. It has a jumper to select the logiclevel and some jumpers (Thermistors) to be able to be used with an arduino mega and a due. It uses IRF3708 Mosfets, so it can be used with a due or a stm32 microcontroller. And there are blade fuses instade of polyfuses. I also traced out D7, D12 and D13 because they were unused on the 1.4. For SPI for TMC2130 you can use the SPI-Header of the arduinos in the middle of the board with some long pin-headers.
I just wanted to share my variant of the Ramps 1.4. I modded it little bit, so it is now capable of 24V. It uses a LM2575 to generate 5V. It has a jumper to select the logiclevel and some jumpers (Thermistors) to be able to be used with an arduino mega and a due. It uses IRF3708 Mosfets, so it can be used with a due or a stm32 microcontroller. And there are blade fuses instade of polyfuses. I also traced out D7, D12 and D13 because they were unused on the 1.4. For SPI for TMC2130 you can use the SPI-Header of the arduinos in the middle of the board with some long pin-headers.