#include <SoftwareSerial.h>

SoftwareSerial mySerial(5, 1);

const int ledPin = 10;
const int buttonPin = 9;

bool state;
bool previousState;

void setup() {
Serial.begin(9600);  
pinMode (ledPin, OUTPUT);
pinMode (buttonPin, INPUT);
state = false;
previousState = state; 
}

void loop() {
  if (digitalRead(buttonPin) && !previousState) {
    state = !state;
    previousState = true;
    digitalWrite(ledPin, state);
    if (state) {
      Serial.println("LED OFF");
    } else {
      Serial.println("LED ON");
    }
  }

  if (!digitalRead(buttonPin)) {
    previousState = false;
  }
}