Chief Delphi - Servo motor isn't working

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Charlie675

24-03-2011 18:03

Servo motor isn't working

We are trying to get a servo to work and it won't even move. We've tried different servos and different PWM ports, but nothing happens. We are currently using this piece of code to test the servo:

Code:

Servo servo(4,8);

float servoRange = servo.GetMaxAngle() - servo.GetMinAngle();

for (float angle = servo.GetMinAngle(); angle < servo.GetMaxAngle(); angle += servoRange / 10.0) { 

        servo.SetAngle(angle); // set servo to angle 

        printf("%f\n",servo.GetAngle());

        Wait(1.0); // wait 1 second 

}

Any suggestions?

Robby Unruh

24-03-2011 18:26

Re: Servo motor isn't working

.. Is there a jumper attatched?

Travis Hoffman

24-03-2011 18:28

Re: Servo motor isn't working

Quote:

Originally Posted by Robby Unruh (Post 1044817)

.. Is there a jumper attatched?

Specifically, the jumper that should be installed on the 2 pins situated right next to your servo's PWM output on the Digital Sidecar?

Newo95

24-03-2011 18:35

Re: Servo motor isn't working

Also, how new is the actual pwm wire as these have a tendancy to wear out and can sometimes become unable to conduct.

Charlie675

24-03-2011 23:45

Re: Servo motor isn't working

Thanks, we did put the jumper in and we tried a few different servos but I'll keep replacing parts and see if anything works.

Robby Unruh

25-03-2011 07:54

Re: Servo motor isn't working

Can Servo's be set to floats? I thought it was only doubles.

try this code:

Code:

Servo servo(4,8);

double servoRange = servo.GetMaxAngle() - servo.GetMinAngle();

for (double angle = servo.GetMinAngle(); angle < servo.GetMaxAngle(); angle += servoRange / 10.0) { 

        servo.SetAngle(angle); // set servo to angle 

        printf("%f\n",servo.GetAngle());

        Wait(1.0); // wait 1 second

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