How to control more positive current using microcontrollers?
My question is: how to switch more positive current (>40mA) than my microcontroller can do directly?
The obvious idea is to cascade a PNP to a NPN transistor, but aren't there ICs ready-made for it? More or less like UNL2803A, but using Sziklai arrays instead.
What would otherwise be the "standard" way of doing it?