21 May '16, 12pm

Motor control with the #Arduino

Motor control with the #Arduino

are very similar to continuous rotation servo motors, in fact. With respect to the latter, DC motor technology is much simpler and, as a consequence, these motors are cheaper than servos. As suggested by their name, DC motors need just a DC voltage source to run, so there is no need to use any PWM pin. They just have two wires to be connected to a voltage source. The direction of rotation depend on how you connect the wires to the voltage source. Reversing the polarity of the power makes the motor run in the opposite direction. The speed of a DC motor depends on the applied voltage: the higher the voltage, the higher the speed. Motor specifications tell you in which voltage range it operates: below the minimum voltage the motor will probably do not move at all or they move with lot of difficulty; above the maximum voltage you seriously risk to damage it.

Full article: https://www.element14.com/community/groups/arduino/blog/2...

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