Moving a mecanum wheel robot programmatically

Projects General Guidance
1

I want to build a mecanum type robot and instead of using a joystick to control it, I want to send it commands programmatically. In other words, if I calculate a directional angle that I want it to move in, how do I figure out what direction and PWM signals to send to each of the four motors?

Let's say 90 degrees is forward, 0 is right, 180 is left and 270 (or -90) is backwards. Any other angle would move it somewhere between these quadrants. I believe that the PWM signal would vary the speed of the wheel and that by giving the 4 wheels the correct direction and speed, it should move exactly as I want it to.

Do I need to control each wheel separately or do i control them in pairs?

Scott

2

Interesting project, controlling the movements by remote.
More information is needed about the robot. Are the wheels turning, except for rotating?

3

My thinking is to start with a kit like this from Superdroids.

4

Ok, but I don't want to spend time and effort do find out what possibilities that kit have. That work You do and then come back with questions giving the important facts.

Steering a wheel based robot has been done in thousands using different kits, most of them different in one or more ways. Maybe some member has used just this kit. I haven't. Next round.