const int ledPin = 9;
const int buttonPin1 = 12; // Increment Button
const int buttonPin2 = 13; // Decrement Button
int lastState1 = HIGH; // the previous state from the input pin
int lastState2 = HIGH;
int pushCounter = 0;  // counter for the number of button presses
int currentState1, currentState2;     // the current reading from the input pin
int fadeValue = 0;
void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin1, INPUT);
  pinMode(buttonPin2, INPUT);
}
void loop() {
  currentState1 = digitalRead(buttonPin1);
  currentState2 = digitalRead(buttonPin2);
  if (currentState1 != lastState1) {
    if (currentState1 == LOW) {
      pushCounter++;
      fadeValue = pushCounter * 32;
    }
  }
  lastState1 = currentState1;
  if (currentState2 != lastState2) {
    if (currentState2 == LOW) {
      pushCounter--;
      fadeValue = pushCounter * 32;
    }
  }
  lastState2 = currentState2;
  analogWrite(ledPin, fadeValue);
  if (pushCounter >= 8) {
    pushCounter = 0;
  }
  delay(50);
}