// by NMDW COTMD/

int input_pin = 5; // input pin number
int switch_bounce_time = 10; // adjust bounce time depend on the switch (mechanical vibration)

unsigned long time1 =0;
unsigned long time2 =0;
unsigned long bouncechecktime = 0;

bool input_Status = false;
bool Prvious_input_Status = false;
bool debounce_Status = false;
bool prv_debounce_Status = false;
bool debounce_status_changed = false;


void setup() {
  // put your setup code here, to run once:
Serial.begin(115200);
pinMode(input_pin, INPUT);

}


void loop() {
  // put your main code here, to run repeatedly:

input_Status = digitalRead(input_pin);

if( not Prvious_input_Status && input_Status) // Previous low and current high  i.e. rising edge
{
    //Serial.println("Rising Edge");
    
    if(millis() - bouncechecktime > switch_bounce_time)
        {
          debounce_Status = input_Status;
          bouncechecktime = millis();
        }    

}


if(Prvious_input_Status && not input_Status) // Previous low and current high  i.e. rising edge
{
    //Serial.println("Falling Edge");

    if(millis() - bouncechecktime > switch_bounce_time)
      {
        debounce_Status = input_Status;
        bouncechecktime = millis();
      }   
}

debounce_status_changed = (prv_debounce_Status != debounce_Status);

if(debounce_status_changed)
{
  //Serial.print("Debounced Status : ");
  //Serial.println(debounce_Status);

  if (debounce_Status)
  {
    Serial.println("Debounce Rising Edge");
    time1 = millis();
    Serial.print("Debounced off time : ");
    Serial.println(millis() - time2);

  }
  else
  {
    Serial.println("Debounce falling Edge");
    time2 = millis();
    Serial.print("Debounced on time : ");
    Serial.println(millis() - time1);
  }
}






prv_debounce_Status = debounce_Status;
Prvious_input_Status = input_Status;

}