Vex 3-wire motors

Community General Discussions
1

I have been using a Vex V.5 quite fine for several years.  But it has been having some communication issues, lately.  So I am considering an Arduino.  The assemblage of Vex (and non-Vex) sensors will not be a problem.  But the 3-wire motors are a puzzle.  I know that Vex 2-wire motors will require a motor shield like any other 2-wire motors.  But what about the older 3-wire motors?  The white wire is for pwm input. 

Thanks

2

You have several pwm outputs

You have several pwm outputs on an arduino so you’ll be able to control them but you might need to find the pwm-values it accepts. So for example servos need a value in a certain area (https://en.wikipedia.org/wiki/Servo_control#Pulse_duration) and these motor maybe too, maybe also from 0%-100%. If you need more pwm pins than the arduino has you can buy one of many pwm shields or extension boards.