Servo Code

servo.ino

#include <Servo.h>

//make instance of servo object
Servo mike;


void setup() {
  // put your setup code here, to run once:

  //attach servo motor
  //works with any digital pin
  mike.attach(9);
}

void loop() {
  int sensor = analogRead(A0);

  //servo.Write() takes values between 0-180
  int angle = map(sensor, 0, 1023, 0, 180);
  
  // put your main code here, to run repeatedly:
  mike.write(angle);

  //to fix jitter, add a delay to write to servo less frequently
  //delay(20);

  //millis() counts milliseconds since program started

  if(millis()%20<2)
  {
    //functionally the same as delay(20) but doesn't delay the rest of your code
    mike.write(angle); //takes value between 0-180
  }
  
}