Help please. Dip switches and mach 3 settings

[Radu_Andrei]

I have another identical supply, so wiring it in series might give me 24v, or 20 due to what you said. I might have a spare laptop charger somewhere, which is 17 or 19v.
If it is a requirement, I.ll do it.
Thanks again for the detailed answer. :)

[cropwell]

I have another identical supply, so wiring it in series might give me 24v, or 20 due to what you said. I might have a spare laptop charger somewhere, which is 17 or 19v.
If it is a requirement, I.ll do it.
Thanks again for the detailed answer. :)

Leave it alone at 12v - if it ain't broke, don't fix it. If you get 0 - 10v on the analogue output, you'll be fine.

[Radu_Andrei]

Ok. Thank you. And yes, the 5v usb cable is run from the pc. I have a phone charger available as well. It reads 4.74v at pc5v and pcgnd.
Does it matter?

[john swift]

phone chargers are not regulated very well
so you will be better off either using the PC's USB port or using a regulated 5V power supply to power the 5V side of the breakout board

John

[cropwell]

phone chargers are not regulated very well
so you will be better off either using the PC's USB port or using a regulated 5V power supply to power the 5V side of the breakout board

John

I use exactly that BoB with a 12/5v dual power supply from a defunct external hard drive. It works fine !