int stateLast;
int stateNow = 2;  // 1- open, 2- close, 3- stop 
#define forwardPin 2
#define backwardPin 3


void ISR() {
  Serial.println("Press");
 switch(stateNow){
  case 1:
  stateNow = 3;
  stateLast = 1;
  digitalWrite(forwardPin, LOW);
  digitalWrite(backwardPin,LOW);
  break;
  case 2:
  stateNow = 3;
  stateLast = 2;
  digitalWrite(forwardPin, LOW);
  digitalWrite(backwardPin,LOW);
  break;
  case 3:
  if (stateLast = 1){
    stateNow = 2;
    digitalWrite(3, HIGH);
  }
  if (stateLast = 2){
    stateNow = 1;
    digitalWrite(2, HIGH);
  }
  break;
 } 

}


void setup() {
  
  Serial.begin(115200);
  Serial.println("Hello, ESP32-C3!");
  pinMode(18, INPUT);
  attachInterrupt(digitalPinToInterrupt(18), ISR, RISING);
  pinMode(forwardPin, OUTPUT);
  pinMode(backwardPin, OUTPUT);
  digitalWrite(forwardPin, LOW);
  digitalWrite(backwardPin,LOW);
}




void loop() {
 if (digitalRead(18)){
  Serial.println("High");
 } 
  
}