My name is Omar Ibrahim and right now I am trying to build a roboter with some of my friends. Now we have problems deciding/finding a motor driver because we don't really have alot of knowledge about it.
Regarding my motor it is from this chasis: http://www.robotshop.com/eu/en/iron-man-3-4wd-all-terrain-chassis-arduino.html#Specifications
Most important specs: Recommended voltage: 3 - 6 V Stall current at 6V: 4 A per motor No-load current at 6 V: 300 mA per motor No-load output shaft speed at 6 V: 220 RPM
Ofcourse we want to change the direction it is going with the PWM output of the Arduino and such we also want to controll how fast it goes so we can move around big obstacles with lower speeds. Regarding the Arduino we use it is the Arduino Mega R3.
I hope you guys can help us out because we have no real answer here.
Nice Greets, Omar Ibrahim