I’ve got a bit of a problem I can’t seem to wrap my head around. I’d like to use a DC motor to precisely control the speed of a vehicle going down a hill. When on flat or up ground, obviously one uses the motor speed control. Going downhill is where I’m confused about the brake function. Id like to have a “heavy” cart roll down a flat surface at a precise speed using these motors. if I let it coast, it’s too fast so I need to slow it down. There are 400 increments that can be used for brake, does each of those correspond to a precise speed? I.e. if I set the brake will it slow it down without bringing it to a stop?
Pololu 100:1 12V gear motor w/ encoder (product code 4755)
Pololu Vnh5019 dual product code 2701
A Star Prime.