Square pulse wave with a delay and a certain length

Projects Programming
9

Dear RC Mineirin,

I have an additional question.
What If I want to run this program again, without having to reset or restart the arduino board? Can this be done by including an attachInterrupt in the void loop(){}?

Or can I use some sort of reset function?

Thank you in advance

volatile byte state = LOW;
volatile unsigned long  count = 0;              // +1 each time interrupt calls ISR
const byte interruptPin = 2;
int TTL4 = 8;

void isr () {
  state = digitalRead(interruptPin);
  if (state == HIGH){
  count ++;
  }
}
  
void setup() {
//count=0;
pinMode(interruptPin, INPUT_PULLUP);
pinMode(LED_BUILTIN, OUTPUT);
pinMode(TTL4, OUTPUT); //output signal to Syringe pump
digitalWrite(TTL4, state);  //original state is when the syringe pump is off
attachInterrupt(state, isr, CHANGE);
}
void loop () { 
  if (count ==3){
  delay(15999);
  digitalWrite(LED_BUILTIN, state);
  digitalWrite(TTL4,state);
  delay(8500);
  digitalWrite(TTL4,LOW);
  digitalWrite(LED_BUILTIN, LOW);
  //delay(10000);
  delay(100000);
  count=0;
  }

  attachInterrupt(state, isr, CHANGE);

}