I was was working on a project today and decided to put a capacitor with a value of 470uf electrolytic across the screw terminals I have set up to run 10v vibrator motor. I am mapping a pot value to that motor for a 0-100 percent speed designated by the pot.
Without the cap there it preforms as expected and with the cap the motor will hit the 100 percent speed around 8 or 9 percent displayed on the lcd rather then the as normal running equally as fast as indicted on screen.
Of course I was just testing to see what would happen and if it would help keep the voltage steady to the motor so there would be less chance of any drops in voltage for the Arduino because they are on the same power supply.
I was hoping that someone could explain to me why the cap does that?
I would assume it’s because the cap takes on a full charge and the voltage behind it fills the charge up and the motor then runs off the full amount of voltage it receives from the cap before my percentage display says 100.
Thank you for any explanation.