// For: https://forum.arduino.cc/t/assignment-make-two-buttons-one-that-makes-an-led-blink-faster-and-another-that-makes-the-led-blink-slower/995931

int ledPin = 3;
int but = 8;
int but2 =7;
int ledState = LOW;  
int slowState;  
int lastButtonState;    
int currentButtonState;
int dvalue = 1000;
int count = 0;
void setup()
{
   pinMode(ledPin, OUTPUT);
   pinMode(but,INPUT);
   pinMode(but2,INPUT);
  Serial.begin(9600);
  }

void loop()
{
  count++;
  lastButtonState    = currentButtonState;      
  currentButtonState = digitalRead(but);  
  slowState = digitalRead(but2);

  if(lastButtonState == LOW && currentButtonState == HIGH) {
    Serial.println("The button is pressed");
    ledState = !ledState;
    digitalWrite(ledPin, ledState);
    dvalue-=100;
    Serial.println(dvalue);
   
  }
  else if(lastButtonState == LOW && slowState == HIGH){
    Serial.println("The button is pressed");
    ledState = !ledState;
    digitalWrite(ledPin, ledState);
    dvalue+=100;
    Serial.println(dvalue);
  }

  digitalWrite(ledPin,HIGH);
  delay(dvalue);
  digitalWrite(ledPin,LOW);
  delay(dvalue);
 
}