This is my first arduino UNO, it came in the ultimate starter kit. The servo also came with it for use with the project book. The servo moves 0 - 180 degrees and the motor simply does not move again. The servo is humming, but no movement. I played with the code, took the servo apart. Nothing. Would this be a bad servo? Or am I doing something wrong?
You will need to show us the code and the wiring circuit you are using.
...R
I assume you are using a servo library and example. You realise you can't just use 5V, or even pwm to drive a servo.
The gears in the small servos tend to strip easily. Below is some servo test code you can use to test the movement of your servo.
// zoomkat 10-22-11 serial servo test
// type servo position 0 to 180 in serial monitor
// or for writeMicroseconds, use a value like 1500
// for IDE 0022 and later
// Powering a servo from the arduino usually *DOES NOT WORK*.
String readString;
#include <Servo.h>
Servo myservo; // create servo object to control a servo
void setup() {
Serial.begin(9600);
myservo.writeMicroseconds(1500); //set initial servo position if desired
myservo.attach(7, 500, 2500); //the pin for the servo control, and range if desired
Serial.println("servo-test-22-dual-input"); // so I can keep track of what is loaded
}
void loop() {
while (Serial.available()) {
char c = Serial.read(); //gets one byte from serial buffer
readString += c; //makes the string readString
delay(2); //slow looping to allow buffer to fill with next character
}
if (readString.length() >0) {
Serial.println(readString); //so you can see the captured string
int n = readString.toInt(); //convert readString into a number
// auto select appropriate value, copied from someone elses code.
if(n >= 500)
{
Serial.print("writing Microseconds: ");
Serial.println(n);
myservo.writeMicroseconds(n);
}
else
{
Serial.print("writing Angle: ");
Serial.println(n);
myservo.write(n);
}
readString=""; //empty for next input
}
}