How to control two steppers and raspberry servos?

Question

ruby

I bought a stepper motor hat v0.1 on Ali. Downloaded the library to manage them. Almost works.
Almost, because the mg996r requires 6 volts and up to 900 milliamps to power it (which means 2 of them), while I need 2 more nema 21s, each of which consumes 12 volts and up to 3 amps.
What could be replaced or how could the piece of iron be changed so that all of the above could be used?

Answer 1

QtRuby - abandoned, no longer developed!
If you need Qt and "break" to spend 2 years learning C ++ or just want a dynamic tool, then you need Python, because only it from all (after the "pluses") allows you to work with all the Qt toolkit, plus it will have a faster interpreter than in Ruby!
If you need Ruby then dig in the direction of Tk () - but I would not advise doing such things in Ruby ...

Answer 2

You have a high-voltage input on the board to power the motors, so connect 6V - 2A to one board, and 12V 5-6A to the second if you want to use them at their peak.
NEMA needs 4 control channels, so either 2 nema or 1 nema and 2 motors per board, but then only 6V will go to the nema

Answer 3

Control and power the engines not directly, but through the decoupling. The simplest decoupling is what kind of mosfet thread.