I'm planing to use two servo motors ( for the wheels ) for a simple line following robot but I don't know how to control the speed. That is why I asked the question.When you say Servo Motor, it depends on whether you wish to incorporate it in a PID (closed) loop or open loop velocity mode.
Usually now either is done with PWM to drive the motor itself.
Need a little more on the application?
Max.
...like I said:Ok then. If could please tell me how to control the speed of the "SG90 9G Micro" servo motor when there is no load ?
If you are trying to control the speed at which it moves to the commanded position (not continuous rotation), the only way I can think to do it is to command it to a much farther point in the sweep and quickly switch the command to the desired point.
A continuous rotation servo is the only way one could use a servo to drive the wheels, that I'm aware of, without some additional mechanical linkages.OK, but the guy hasn't mentioned modifying his servos, and if he does that, I wish him good luck on controlling the speed, or for that matter making sure that the motors ever stop. Yes, 1.5msec pulse to stop the motor, but will it, really?
by Jake Hertz
by Jake Hertz
by Duane Benson
by Jake Hertz