The problem is that I have to move 750mL of liquid in less than 20 sec, so I can't use a peristaltic pump, because it's too slow.
The DC pump is what I was thinking, but I wasn't sure I could do via software.
What about moving a piston of a syringe?
Do you think I can achieve a good speed with a standard stepper motor? I saw this video https://www.youtube.com/watch?v=UHa-OKb_CiM but the speed is too slow for me.
I was thinking to use a 500mL syringe and the same setup to move the piston.