Very simple servo basic setup not working as intended.

Using Arduino General Electronics
#1

So I just received an arduino yesterday and have been playing around with it.
I have been trying to hook up a simple servo and its doing something odd.

Here is the code I am using:

#include <Servo.h>  // servo library

Servo servo1;  // servo control object

void setup()
{

  servo1.attach(9);
}


void loop()
{
  servo1.write(90);    // Tell servo to go to 90 degrees

  delay(1000);         // Pause to get it time to move

  servo1.write(180);   // Tell servo to go to 180 degrees

  delay(1000);         // Pause to get it time to move

  servo1.write(0);     // Tell servo to go to 0 degrees

  delay(1000);         // Pause to get it time to move
}

Its supposed to go to half it’s distance, then full, then back to 0.

Instead of doing what I wrote in the code, the servo slowly moves forward maybe a millimeter every second until it hits the end, where it can’t go any farther. All the while, my computer constantly keeps making the sound it does when a usb device is connected every second in sync with the motor. I have not had any other issues with my simple LED circuits I made yesterday.
The servo has the brown wire going to GRD, the red to the 5V and the white to the 9 pin on the arduino.

Any idea of what could be going wrong?

#2

Always power motors and servos from a power supply, possibly separate, and never from the 5V terminal on the Arduino. If using a separate power supply (4 AA batteries are OK) be sure to connect all the grounds together.

#3

Powering the servo from the arduino is probably causing the arduino to repeatedly reset. Below is the basic way to power the servo.

#4