wlpuah / RUMBA32 - History

Rework voltage regulators

Change inductors to be smaller, higher current ratings
Change diode D8 to be smaller, higher ratings

V1.1 outputs

Update version number on PCB and schematic to V1.1A
Update Gerbers
Update pick and place
Update Schematic and BOM PDF
Check Excel BOM correct
Update Schematic image

Fix D8 Footprint

Diode D8 was using footprint for MBMR140 instead of MURS320. Previous boards were populated with MBMR140 to suit footprint, potentially limiting regulated 12V output current.

Correct DIP switch orientation

Stepper driver microstepping DIP switches are 'upside-down' / unintuitive, change orientation.

Change 5V regulator

Change LT1933 regulator to AOZ1282CI. Higher current rating (1.2A vs 600mA) and easier to source. Feedback resistors to set voltage changed accordingly.

Tidying Files

Add images, schematic + BOM in PDF format. Tidy folder structure.