JohnSL
using the board with external 5v source
Hi, I would like to use this board with an external 5v source, then somehow connect it to the 2 pins of the z probe input on my printer. is that possible?
ps I cant use 5v directly from the printer, thats why im asking rgds PB
That will work fine. You just need to also connect the grounds between your power supply and your printer.
i want to use a power bank for the 5v. so connecting the printer metal frame to the the powerbank gnd will work ? but the gnd of the power bank is the metal case of the usb plug or the black wire? thx again
I wouldn't depend on the case being a good ground. You should be able to find a ground wire from your controller's power supply or a ground pin on the controller itself that you can connect the JohnSL board to.