#include "DHT.h"
#include <Servo.h>
#include "pitches.h"

//农场设备
#define pfs 2//排风扇 使用白色led表示
#define jrq 3//加热器 使用红色led表示
#define dg 4 //滴灌   使用淡蓝led表示
#define pg 5 //喷灌   使用蓝色led表示
#define bcd 6//白炽灯 使用黄色led表示
#define csj 7//抽水机 使用紫色led表示

#define ny 9//农药阀门
#define fl 10//肥料阀门
#define zgp 11//遮光棚
//农场监测
#define DHTPIN 8//温度湿度监测
#define swgz A1//室外光照
#define sljz A2//水量监测
//安全警报
#define wdjb 12//温度警报
#define sljb 13//水量警报
#define button1 A3//农药按钮
#define button2 A4//肥料按钮
//目标数值
const int wd=25;//设定温度
const int sd=65;//设定湿度
const int gz=500;//设定光照强度
const int slmix=200;//水量最低
const int slmax=800;//水量最高

int nyflag=0;
int flflag=0;
const float GAMMA = 0.7;
const float RL10 = 50;
const int gameTones[] = { NOTE_G3, NOTE_C4, NOTE_E4, NOTE_G5};

DHT dht(DHTPIN, DHT22);//温度湿度
Servo myservo1;//遮光棚
Servo myservo2;//农药阀门
Servo myservo3;//肥料阀门


void setup() {
  for(int i=2;i<=7;i++){
    pinMode(i, OUTPUT);
  }
  myservo1.attach(ny);
  myservo2.attach(fl);
  myservo3.attach(zgp);
  dht.begin();
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
}

void loop() {
  //湿度监控
  while(dht.readHumidity()<=sd){//是否缺水
    digitalWrite(dg, HIGH);//打开滴灌
    digitalWrite(pg, HIGH);//打开喷灌
    delay(1000);
  }
  digitalWrite(dg, LOW);
  digitalWrite(pg, LOW);

//温度监控
  while(dht.readTemperature()<=wd-1||dht.readTemperature()>=wd+1){//温度是否合适
    if(dht.readTemperature()<=10||dht.readTemperature()>=50){
      tone(wdjb,gameTones[1]);
    }else{
      noTone(wdjb);
    }
    digitalWrite(pfs,HIGH);//打开排风扇
    if(dht.readTemperature()<=wd-1){
      digitalWrite(jrq, HIGH);//打开加热器
    }
    delay(1000);
  }
  digitalWrite(pfs, LOW);
  digitalWrite(jrq, LOW);
  
//光强监控
  int analogValue = analogRead(swgz);
  float voltage = analogValue / 1024. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));
  if(lux<=gz){//光照强度不足
    myservo3.write(180);//关闭遮光棚
    digitalWrite(6, HIGH);//打开白炽灯
  }
  else{
    myservo3.write(0);//打开遮光棚
    digitalWrite(6, LOW);//关闭白炽灯
  }

//水量监控，抽水
  if(analogRead(sljz)<=slmix){
    digitalWrite(csj, HIGH);
  }
  if(analogRead(sljz)>=slmax){
    digitalWrite(csj, LOW);
  }

  if(analogRead(sljz)<=50||analogRead(sljz)>=950){
    tone(sljb,gameTones[0]);
  }else{
    noTone(sljb);
  }
//农药喷洒
  if(digitalRead(button1)==HIGH){
    nyflag=abs(nyflag-1);
  }

  if(nyflag==1){
    myservo1.write(0);
    digitalWrite(pg, HIGH);
  }else{
    myservo1.write(180);
    digitalWrite(pg,LOW);
  }
//肥料滴灌
  if(digitalRead(button2)==HIGH){
    flflag=abs(flflag-1);
  }
  if(flflag==1){
    myservo2.write(0);
    digitalWrite(dg, HIGH);
  }else{
    myservo2.write(180);
    digitalWrite(dg,LOW);
  }
  
}