#include "Cloud_PLC.h"
const int digitalPin = IN4; // the value can be assigned as your preference IN1, IN2, IN3, IN4.
volatile int count = 0; //initialize count as 0
int interval = 250; //debounce time
long button_time = 0;
long LAST_COUNT = 0;
void IRAM_ATTR Ext_INT4_ISR()
{ // function for
button_time = millis(); // Assign millis() to button_time (millis() Returns the number of milliseconds since
the device began running the current program)
if (button_time - LAST_COUNT > interval)
{
 if (digitalRead(digitalPin) == HIGH)
{
 LAST_COUNT = button_time;
 count++;
 Serial.println(count);
 }
}
}
void setup()
{
Cloud_PLC_initialisation(); // Config digital pins IN1,IN2,IN3 and IN4 as INPUT
Serial.begin(9600);
attachInterrupt(digitalPinToInterrupt(digitalPin), Ext_INT4_ISR, RISING);
}
void loop()
{
// put your main code here, to run repeatedly: }
}