Following a few articles to use an Uno to control 2 stepper motors, for a small hobby device I am wanting to construct.
I have :
12V DC PSU
Nema 17 stepper with A4988 driver
Nema 23 stepper with DRV8825 driver
The recommendation I have seen, is to have a capacitor, across the Positive & Ground lines, between the PSU and the Stepper.
A few different Capacitor Values have been mentioned ( 47uF to 100uF )
I have ( on hand ) 10uF 25V and also 470uF 16V.
Would either of these capacitors ( or a combination ) be sufficient ?
Do I need a separate capacitor for each stepper, or only 1 capacitor on the line that goes to both drivers ?
If I want to power the UNO from the same 12V supply, is it better to branch off from the PSU directly ( before the capacitor/s ) to the UNO, or branch off to the UNO after the capacitor ( on the stepper side of the capacitor ) ?