int button = 8;
#include <Bounce2.h>
Bounce b = Bounce(); 
#include <Servo.h>

Servo myservo;
int pos = 0;
boolean change = false;    
void setup()
{


  pinMode(11,OUTPUT);
 pinMode(12, OUTPUT);
 myservo.attach(12);
  pinMode(button, INPUT_PULLUP);
  Serial.begin(19200);
}

void loop()
{
  for (pos = 0; pos<= 46; pos += 5) {
    myservo.write(pos);
    delay(20);
    
  }
  for (pos = 46; pos>=0; pos -= 5) {
    myservo.write(pos);
    delay(20);
  }
      while( digitalRead(button) == HIGH){}

       if( change == false )
       {
             (myservo, LOW);
               change = !change;   
        }
        else
        {
        digitalWrite
        (12, HIGH);
          change = !change;
        }
      delay (80);
}