#include <IRremote.h>
#include <LiquidCrystal.h>
#include <Servo.h>
#include "pitches.h"

const float BETA = 3950; 

//#define SPEAKER_PIN A3     //蜂鸣器
#define PIN_RECEIVER 2   // Signal Pin of IR receiver
#define PIN_SERVO 3
Servo servo1;
IRrecv receiver(PIN_RECEIVER);

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
int Pins[] = { 6,5 };//条形灯的引脚
int keyP=4;//开关的引脚

void setup()
{
  //pinMode(SPEAKER_PIN, OUTPUT);
  pinMode(keyP,INPUT_PULLUP);
  lcd.begin(16, 2);
  lcd.print("HELLO 2022!");//显示屏初始页面
  receiver.enableIRIn(); // Start the receiver
  Serial.begin(9600);
  servo1.attach(PIN_SERVO);
  for (int thisLed = 0; thisLed < 2; thisLed++) 
  {
    pinMode(Pins[thisLed], OUTPUT);//设置条形灯引脚输出
  }
}
int thisLed=0;
int rotation=90;
void loop()
{
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  if(celsius > 45)//温度超过45火警电话
      {
        //tone(A3, 262, 250); 
        Serial.println(119);//输出119的信号模拟链接网络报警
      }
  servo1.write(rotation);//模拟关门
 if(!digitalRead(keyP)){
  if (receiver.decode()) {
    if (receiver.decodedIRData.command == 162) // 162  "开始"键  
    {
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Welcome Home");
      lcd.setCursor(0, 1);
      lcd.print("code:");
      int num = -1;
      int rotation = 0;
      Serial.println("start INPUT number");
      receiver.resume();
      delay(10);
      while (1)   //
      {
          if(receiver.decodedIRData.command == 168) break;  //168  "play"键 表示确定
          if( receiver.decode() )
        {
          num = inputNum(); //读入数字,0-9  非数字为-1
          if (num != -1)
          {
              rotation = rotation * 10 + num;
              Serial.println(rotation);
          }
          receiver.resume();
          delay(10);
        }
      }
      Serial.println("move point!");
      if(rotation==124)//由正确的密码计算出要求的角度，门才会开
      {
        servo1.write(rotation);
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("SUCCES OPEN");
      }
      else{
        digitalWrite(Pins[thisLed], HIGH);//每错误一次，条形灯亮一层
        thisLed=thisLed+1;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("code error");
      }
    }
    receiver.resume();  // Receive the next value
}
}
delay(3000);//三秒后模拟关门
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("HELLO 2022!");
}

int inputNum()
{
  int num;
  switch (receiver.decodedIRData.command)//隐藏密码
  {
    case 104:
      num = 0;
      lcd.print('*');//隐藏密码代码
      break;
    case 48:
      num = 1;
      lcd.print('*');
      break;
    case 24:
      num = 2;
      lcd.print('*');
      break;
    case 122:
      num = 3;
      lcd.print('*');
      break;
    case 16:
      num = 4;
      lcd.print('*');
      break;
    case 56:
      num = 5;
      lcd.print('*');
      break;
    case 90:
      num = 6;
      lcd.print('*');
      break;
    case 66:
      num = 7;
      lcd.print('*');
      break;
    case 74:
      num = 8;
      lcd.print('*');
      break;
    case 82:
      num = 9;
      lcd.print('*');
      break;
    default:
      num = -1;
  }
  return num;
}