#define segA 2
#define segB 3
#define segC 4
#define segD 5
#define segE 6
#define segF 7
#define segG 8
#define buttonINC 9
#define buttonDEC 10
int stateup ;
int statedown ;
int counter ;
#include <Servo.h>
Servo servo ;
void zero(){
  servo.write(0);
for (int x = 2 ; x <= 7 ; x++)
    {  digitalWrite(x , HIGH); }
digitalWrite(segG , LOW);
}

void one(){
  servo.write(10);
digitalWrite(segA , 0); 
digitalWrite(segB , 1);
digitalWrite(segC , 1);
for (int x = 5 ; x <= 8 ; x++)
    {  digitalWrite(x , HIGH); }
digitalWrite(segG , LOW);
}

void two(){
  servo.write(20);
digitalWrite(segA , 1); 
digitalWrite(segB , 1);
digitalWrite(segC , 0);
digitalWrite(segD , 1);
digitalWrite(segE , 1);
digitalWrite(segF , 0);
digitalWrite(segG , 1);
}

void displayoff(){
for (int x = 2 ; x <= 7 ; x++)
    {  digitalWrite(x ,0); }

}

void setup() {
  for ( int i = 2 ; i <= 8 ; i++)
    {  pinMode(i, OUTPUT); }
  pinMode(buttonINC , INPUT);  
   pinMode(buttonDEC , INPUT);
  Serial.begin(9600);
  servo.attach(11);
}

void loop() {
stateup = digitalRead(buttonINC);
statedown = digitalRead(buttonDEC);
if (stateup == 1 && counter < 9){
  counter = counter + 1;
  delay(1000);
  }
if (statedown == 1 && counter >0){
  counter = counter - 1;
  delay(1000);
  }

switch (counter){
  case 0 : zero();
  break;
  case 1 : one();
  break;
  case 2 : two();
  break;
  default : displayoff();
  break;
}
Serial.println(counter);
delay(30);

}