// LCD1602 to Arduino Uno connection example

#include <LiquidCrystal.h>
#define DELAY 500 // Delay between two measurements in ms
#define VIN 5 // V power voltage
#define R 1 //ohm resistance value
const int sensorPin = A0; // Pin connected to sensor
int sensorVal; // Analog value from the sensor
float res; //resistance value
const int LED = 4;
int sensorstate = 0;
int LED1 = 0;
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

byte wind1[] = {
  B00000,
  B00000,
  B00000,
  B00011,
  B00111,
  B00111,
  B00111,
  B00011
};

byte wind2[] = {
  B11111,
  B11111,
  B01110,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000
};

byte wind3[] = {
  B00000,
  B00000,
  B00000,
  B00000,
  B00000,
  B01110,
  B11111,
  B11111
};

byte wind4[] = {
  B11000,
  B11100,
  B11100,
  B11100,
  B11000,
  B00000,
  B00000,
  B00000,
};


// Second Frame

byte wind5[] = {
  B00000,
  B00000,
  B00000,
  B00000,
  B01000,
  B11100,
  B11110,
  B01111
};

byte wind6[] = {
  B00001,
  B00011,
  B00111,
  B01111,
  B00110,
  B00000,
  B00000,
  B00000
};

byte wind7[] = {
  B00000,
  B00000,
  B00000,
  B01100,
  B11110,
  B11100,
  B11000,
  B10000
};

byte wind8[] = {
  B11110,
  B01111,
  B00111,
  B00010,
  B00000,
  B00000,
  B00000,
  B00000
};
void setup() {
  lcd.begin(16, 2);
  // you can now interact with the LCD, e.g.:
  pinMode(LED,OUTPUT);
    lcd.createChar(1 , wind1); //Numbering should start at 1, not 0
  lcd.createChar(2 , wind2);
  lcd.createChar(3 , wind3);
  lcd.createChar(4 , wind4);
  lcd.createChar(5 , wind5);
  lcd.createChar(6 , wind6);
  lcd.createChar(7 , wind7);
  lcd.createChar(8 , wind8);
  
}
float sensorRawToPhys(int raw){
  // Conversion rule
  float Vout = float(raw) * (VIN / float(1023));// Conversion analog to voltage
  float phys = R *((Vout))/VIN; // Conversion voltage to resistance between GND and signal
  float phys2 = R *((VIN - Vout))/VIN; // Conversion voltage to resistance between 5V and signal
  return phys;
  }
void loop() {
sensorstate = analogRead(sensorPin);
if (sensorstate >= 500)
  {
    digitalWrite(LED, HIGH);
  } 
  else{
  }
  
  if (sensorstate <= 100)
  {
    digitalWrite(LED, LOW);
  } 
  else{
  }
  LED1 = digitalRead(4);
  
  if (LED1 == HIGH)
  {
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.write(1);
  lcd.setCursor(0,1);
  lcd.write(2);
  lcd.setCursor(1,0);
  lcd.write(3);
  lcd.setCursor(1,1);
  lcd.write(4);
  lcd.setCursor(3,0);
  lcd.print(analogRead(sensorPin));
  lcd.setCursor(3,3);
  lcd.print("FAN ON");
  delay (200);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.write(5);
  lcd.setCursor(0,1);
  lcd.write(6);
  lcd.setCursor(1,0);
  lcd.write(7);
  lcd.setCursor(1,1);
  lcd.write(8);
  lcd.setCursor(3,0);
  lcd.print(analogRead(sensorPin));
  lcd.setCursor(3,3);
  lcd.print("FAN ON");
  delay (200);
  }
  else
  {
    lcd.clear();
  lcd.setCursor(0,0);
  lcd.write(1);
  lcd.setCursor(0,1);
  lcd.write(2);
  lcd.setCursor(1,0);
  lcd.write(3);
  lcd.setCursor(1,1);
  lcd.write(4);
  lcd.setCursor(3,0);
  lcd.print(analogRead(sensorPin));
  lcd.setCursor(3,3);
  lcd.print("FAN OFF");
  delay (200);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.write(5);
  lcd.setCursor(0,1);
  lcd.write(6);
  lcd.setCursor(1,0);
  lcd.write(7);
  lcd.setCursor(1,1);
  lcd.write(8);
  lcd.setCursor(3,0);
  lcd.print(analogRead(sensorPin));
  lcd.setCursor(3,3);
  lcd.print("FAN OFF");
  delay (200);
  }
  delay(500);
  lcd.clear();
}