I have a hxt900 servo, and when using both example sketches included in Arduino 1.0, the servo (and a second identical one) freeze, quit, operate erratically, etc. Checked the wiring to make sure it's solid, and correct. I also checked to see the pot was being read properly.
The "L" light on my 2560 lights at the same time the servo "shifts" 2-5 degrees or so (every 9 seconds)
Anyone else having similar issues?
// Controlling a servo position using a potentiometer (variable resistor)
// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>
#include <Servo.h>
Servo myservo; // create servo object to control a servo
int potpin = 0; // analog pin used to connect the potentiometer
int val; // variable to read the value from the analog pin
void setup()
{
Serial.begin(9600); // setup serial
myservo.attach(9); // attaches the servo on pin 9 to the servo object
}
void loop()
{
val = analogRead(potpin); // reads the value of the potentiometer (value between 0 and 1023)
// Serial.println(val);
val = map(val, 0, 1023, 0, 179); // scale it to use it with the servo (value between 0 and 180)
myservo.write(val); // sets the servo position according to the scaled value
// Serial.println(val);
delay(15); // waits for the servo to get there
}