#include<SoftwareSerial.h>

#define RX 7
#define TX 6

SoftwareSerial ss(RX, TX);
int data1;
int state = 0;
int sensor = 8;
int ENA = 3;
int IN1 = 4;
int IN2 = 5;
int flag = 0;
int flag2 = 0;
void setup() {
  Serial.begin(9600);
  ss.begin(9600);
  pinMode(sensor, INPUT);
  pinMode(ENA, OUTPUT);
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  digitalWrite(IN1, 0);
  digitalWrite(IN2, 0);
}

void loop() {
  state = !digitalRead(sensor);
  Serial.println(state);
  ss.print(state); ss.print("A");
  ss.print("\n");
  if (state == 1) {
    //sendDataViaBT(1);
    ss.print(state); ss.print("A");
    ss.print("\n");
    delay(3000);
    fadeON();
    delay(2000);
    fadeOFF();
    delay(60000);
  }
  delay(50);
  //sendDataViaBT(1);
  // fade in from min to max in increments of 5 points:
  /*
    for (int fadeValue = 0 ; fadeValue <= 220; fadeValue += 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ENA, fadeValue);
    digitalWrite(IN1, 1);
    digitalWrite(IN2, 0);
    // wait for 30 milliseconds to see the dimming effect
    delay(100);
    if (fadeValue == 220)
      flag = 1;
    }
    if (flag) {
    flag = 0;
    delay(5000);
    }
    // fade out from max to min in increments of 5 points:
    for (int fadeValue = 220 ; fadeValue >= 0; fadeValue -= 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ENA, fadeValue);
    digitalWrite(IN1, 1);
    digitalWrite(IN2, 0);
    // wait for 30 milliseconds to see the dimming effect
    delay(100);
    if (fadeValue == 0)
      flag2 = 1;
    }
    if (flag2) {
    delay(5000);
    flag2 = 0;
    }
  */
}

void sendDataViaBT(int aA) {
  data1 = aA;
  ss.print(data1); ss.print("A");
  ss.print("\n");
  Serial.print(data1);
  Serial.println("A ");
  delay(50);
}

void fadeON() {
  for (int fadeValue = 0 ; fadeValue <= 220; fadeValue += 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ENA, fadeValue);
    digitalWrite(IN1, 1);
    digitalWrite(IN2, 0);
    // wait for 30 milliseconds to see the dimming effect
    delay(100);
    if (fadeValue == 220)
      flag = 1;
  }
  if (flag) {
    flag = 0;
    delay(10000);
  }
}

void fadeOFF() {
  for (int fadeValue = 220 ; fadeValue >= 0; fadeValue -= 5) {
    // sets the value (range from 0 to 255):
    analogWrite(ENA, fadeValue);
    digitalWrite(IN1, 1);
    digitalWrite(IN2, 0);
    // wait for 30 milliseconds to see the dimming effect
    delay(100);
    if (fadeValue == 0)
      flag2 = 1;
  }
  if (flag2) {
    delay(10000);
    flag2 = 0;
  }
}