#include <LiquidCrystal_I2C.h>  //液晶 I2C
#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
#define LIHGT_PIN A0
#define Temperature_PIN A1
#define LED_PIN 4
int lightValue;
int temperValue;

void setup() 
{
  lightValue = 0;
  temperValue = 0;
  lcd.init();    //cd(液晶屏的初始化)
  lcd.backlight();  //背光设置
  Serial.begin(9600); 
}
void loop()
{
  lightValue = getlight;
  temperValue = getenv;
  Serial.print("光线:");
  Serial.println(lightValue);
  delay(200);
  Serial.print("温度:");
  Serial.println(temperValue);
  delay(200);
 if(lightValue > 6000 && temperValue > 50)
  {
    digitalWrite(4,HIGH);
    delay(200);
  }
  else
   {
      digitalWrite(4,LOW);
    delay(200);
   }
  lcd.setCursor(4,0);
  lcd.print("robot 2 group");
  lcd.setCursor(0,1);
  lcd.print("Liang Chun Hui");
  lcd.setCursor(0,2);
  lcd.print("light:");
  lcd.setCursor(7,2);
  lcd.print(lightValue);
  lcd.setCursor(0,3);
  lcd.print("temper:");
  lcd.setCursor(13,3);
  lcd.print(temperValue);

  //lcd.setCursor(19, 0);  //((0-20),0第零行)
  //lcd.print("Hello, world!"); 
  //lcd.setCursor(0, 1); //((0-20)-7表示有七个空格,1第一行)
  //lcd.print("Wokwi Online IoT");
  //lcd.setCursor(0, 2);
  //lcd.print("Simulator");
  //lcd.setCursor(0, 3);
  //lcd.print("Enjoy!");
}
int getlight()
{
  int value = analogRead( LIHGT_PIN);
  return map(value,0 ,1023 ,1000 ,0);//value
}
int Temperature()
{
  int sum;
  sum = analogRead( Temperature );
  return map(sum,115 ,953 ,80 ,-24);
}