#include <Wire.h> 
#include <LiquidCrystal.h>
LiquidCrystal lcd (12, 11, 10, 9, 8, 7);
  byte a[]={ B00000,B00000,B00000,B00000,B00000,B00000,B00000,B11111};
  byte b[]={ B00000,B00000,B00000,B00000,B00000,B00000,B11111,B11111};
  byte c[]={B00000,B00000,B00000,B00000,B00000,B11111,B11111,B11111};
  byte d[]={B00000,B00000,B00000,B00000,B11111,B11111,B11111,B11111};
  byte e[]={B00000,B00000,B00000,B11111,B11111,B11111,B11111,B11111};
void Intro();
void Cautions();
void Display_results();
void oxygen();
int oxyg=3;
void setup() {
  pinMode(oxyg,INPUT);
  Serial.begin(9600);
   lcd.begin(20,4);
lcd.createChar(1, a);
lcd.createChar(2, b);
lcd.createChar(3, c);
lcd.createChar(4, d);
lcd.createChar(5, e);
}

void loop() {
   Intro();
   delay(10000);
   lcd.clear();
 Cautions();
 delay(10000);
   lcd.clear();

for(int i=0; i<120; i++){
  delay(500);
Display_results();
oxygen();
}
   lcd.clear();
}



void Intro(){
  
  lcd.setCursor (0, 0);
  lcd.print ("AHMED MEDIX LIFECARE");
  lcd.setCursor (3, 1);
  lcd.print ("PAKISTAN NO.1");
  lcd.setCursor (0, 2);
  lcd.print ("(ISO 9001)AMBULANCES");
  lcd.setCursor (0, 3);
  lcd.print ("SERVICES 04235213441");
  }

  void Cautions(){
    lcd.setCursor (0, 0);
lcd.print ("FOR ELE FAULT ALWAYS");
  lcd.setCursor (3, 1);
  lcd.print ("CHECK FUSE BOX");
  lcd.setCursor (1, 2);  
lcd.print ("KEEP 02 CYL CLOSE");
  lcd.setCursor (2, 3);
  lcd.print ("WHEN NOT IN USE");
  }

void Display_results(){
int Bt_1;
int Bt_2;
int Temp_c;
float Battery_1;
float Battery_2;
int temprature;
int oxygen=3;

    lcd.setCursor (0, 0);
  lcd.print ("BATT(1)");
  lcd.setCursor (0, 1);
  lcd.print ("BATT(2)");
  lcd.setCursor (0, 2);
  lcd.print ("TEMPRATURE");
 
Bt_1 = analogRead (A4);//(A4);
  Battery_1 = Bt_1 * (15.8 / 1023.0);// 3.82 = 781.571 * 15.8/1023 =12.07
  lcd.setCursor (7, 0);
  lcd.print (Battery_1);
  lcd.print ("V");
  
Serial.print(Battery_1); 


lcd.setCursor (13, 0);

if(Bt_1 >170)
  {lcd.print(char(1));}
  else
  {lcd.print(" ");}
  if(Bt_1 >340)
  {lcd.print(char(2));}
  else
  {lcd.print(" ");}
  if(Bt_1 >510)
  {lcd.print(char(3));}
  else
  {lcd.print(" ");}
  if(Bt_1 >680)
  {lcd.print(char(4));}
  else
  {lcd.print(" ");}
 if(Bt_1 >850)
  {lcd.print(char(5));}
  else
  {lcd.print(" ");}
 Bt_2 = analogRead (A3);//(A3);
  Battery_2 = Bt_2 * (15.8 / 1023.0);
  lcd.setCursor (7, 1);
  lcd.print (Battery_2);
  lcd.print ("V");
 


lcd.setCursor (13,1);
if(Bt_2 >170)

  {lcd.print(char(1));}
  else
  {lcd.print(" ");}
  
  if(Bt_2 >340)
  {lcd.print(char(2));}
  else
  {lcd.print(" ");}
  
  if(Bt_2 >510)
  {lcd.print(char(3));}
  else
  {lcd.print(" ");}
  
  if(Bt_2 >680)
  {lcd.print(char(4));}
  else
  {lcd.print(" ");}
  
 if(Bt_2 >850)
  {lcd.print(char(5));}
  else
  {lcd.print(" ");}
  
  Temp_c = analogRead (A5);//(A5);
  temprature = (Temp_c /2.5);//(Temp_c * 100)
  lcd.setCursor (15, 2);
  lcd.print (temprature);
  lcd.print (" C");
  
  

}

void oxygen(){
  
int val = digitalRead(oxyg);  
lcd.setCursor (2,3);

{if (val == LOW)
 {lcd.print ("OXYGEN IN USE");
 } else {
for (int j=0; j<10; j++);{
  lcd.print ("CHECK OXYGEN CYL");
 delay (300);
 lcd.setCursor (2,3);
 lcd.print ("                  ");}
} }
}