//include LCD library
#include <LiquidCrystal.h>

//LCD pins
LiquidCrystal lcd(7,6,5,4,3,2);

//light sensor input pin
const int lightPin = 0;

//heat sensor input pin
const int heatPin = 1;

//record light level
int lightLevel;

//used to get heat level\
float voltage, degreesC;

void setup()
{
  Serial.begin(9600);

  // LCD initial setups
  lcd.begin(16, 2);
  lcd.clear();
}

void loop()
{
  // Begin
  float voltage, degreesC;

  // take Light reading as variable
  lightLevel = analogRead(lightPin);

  // take Heat level as voltage and convert to Celcius
  voltage = getVoltage(heatPin);
  degreesC = (voltage - 0.5) * 100.0;

  // display Heat + Light variables on LCD
  //serial display
  Serial.println(lightLevel);
  Serial.println(degreesC, 2);


  //lcd display
  lcd.setCursor(1,0);
  lcd.print("Temp: ");
  lcd.setCursor(7,0);
  lcd.print(degreesC,2);

  lcd.setCursor(1,1);
  lcd.print("Light: ");
  lcd.setCursor(8,1);
  lcd.print(lightLevel);
  // append values to txt file on computer via usb connection


  // wait specified time before taking next value
  delay(10000);
}
float getVoltage(int pin)
{
  return (analogRead(pin) * 0.004882814);

  // This equation converts the 0 to 1023 value that analogRead()
  // returns, into a 0.0 to 5.0 value that is the true voltage
  // being read at that pin.
}