I have project where 90v dc rotating motors(4 of them) must be controlled via Laptop.
What is the most simple solution, Can I go with raspberry pi or need to go lower with arduino or there are maybe some motors which have usb controller module inside ?
Since some of guys told me to explain my problem deeper, I need to have 2 dc motors, on 30cm distance, spinning oposite direction( to be able to launch something(like a sling)
They need to rotate at the same speed(just oposite direction) with option of regulating that speed of rotation (rpms)
As an input, I would prefer raspbery Pi (usb maybe) since the end goal is to be able to control it over web-application.
So to summarize, User press start button with predefined speeds over web app, than controller( raspberry pi can have web server , that's why it's on my mind) modulates voltages and rotation of 2 two motors and when it fires they shut down.
Ok from What I know now, I found out that 2 dc motors of 36v 300w and 3000rpm would be enough. Now tricky part with wiring.
How to connect raspberry Pi with those 2 motors, I need to be able to change rpms so I guess some potentiometer would be good for that.
Is there something like digital potentiometer to take input from raspbery pi up to 3.3V and convert them to up to 36V to be able to control motors?