Just wanted to tell you
 

Remember I asked about how to use DC motors?
I've managed to do it and it works perfectly!
I connected two DC motors to a L293 chip and connected the chip to 4 digital outputs. I control the speed of the motors using a PWM signal I created using timers. It's done by giving the chip pulses of voltage, and by that the motors slow down.
It works really smoothly and Im very satisfied.