//净水机主控板V1.0
/*引脚说明
制水指示灯PB0
冲洗指示灯PB2
故障指示灯PB1
蜂鸣器PB3
高压开关PA0
低压开关PA1
进水阀PA2
冲洗阀PA3
增压泵PA4
*/

int ZS=PB_0;
int CX=PB_2;
int GZ=PB_1;
int WMQ=PB_3;
int GYKG=PA_0;
int DYKG=PA_1;
int JSF=PA_2;
int CXF=PA_3;
int ZYB=PA_4;

boolean i;   //布尔变量i  为低压开关状态
unsigned long time1;
void setup(){
  pinMode(ZS, OUTPUT);
  pinMode(CX, OUTPUT);
  pinMode(GZ, OUTPUT);
  pinMode(WMQ, OUTPUT);
  pinMode(JSF, OUTPUT);
  pinMode(CXF, OUTPUT);
  pinMode(ZYB, OUTPUT);
  pinMode(GYKG, INPUT_PULLUP);
  pinMode(DYKG, INPUT_PULLUP);

}

void loop(){
unsigned long time1;
digitalWrite(ZS,LOW);  //初始化
digitalWrite(CX,LOW);
digitalWrite(GZ,LOW);
digitalWrite(JSF,LOW);
digitalWrite(CXF,LOW);
digitalWrite(ZYB,LOW);
  
  if (digitalRead(DYKG)) {   //低压开关判断自来水有无，内部上拉模式，置1为断开
    digitalWrite(WMQ,HIGH);
    delay(3000);                    //蜂鸣器报警，故障灯常亮
    digitalWrite(WMQ,LOW);
    while (1) {
      digitalWrite(GZ,HIGH);
      i=digitalRead(DYKG);     //读取低压开关状态 并赋值给i
      if(i==0){
        digitalWrite(GZ,LOW);   //关闭故障灯
        break;  //跳出循环
      }
    }

  } else {
    if (digitalRead(GYKG)) {     //高压开关断开，引脚置1（上拉模式），缺水，开始制水
      unsigned long startTime = millis(); //获取当前时间
      while (1) {
        digitalWrite(ZS,HIGH);
        digitalWrite(JSF,HIGH);
        delay(1000);
        digitalWrite(ZYB,HIGH);
       unsigned long currentTime = millis(); // 获取当前时间
        time1 = currentTime - startTime;       //连续制水时长
        if(time1>3600000)               //制水超时报故障
        {
        digitalWrite(ZS,LOW);
        digitalWrite(JSF,LOW);
        digitalWrite(ZYB,LOW);        
        digitalWrite(WMQ,HIGH);
        delay(3000);
        digitalWrite(WMQ,LOW);
          while(1){
        digitalWrite(GZ,HIGH);   //故障灯常亮

                  }

        }
          if (digitalRead(GYKG)==0) {        //水满启动冲洗程序  
          digitalWrite(CX,HIGH);
          digitalWrite(ZS,LOW);
          digitalWrite(JSF,LOW);
          digitalWrite(ZYB,LOW);
          delay(1000);
          digitalWrite(JSF,HIGH);
          digitalWrite(CXF,HIGH);
          digitalWrite(ZYB,HIGH);
          delay(15000);
          break;

        }
      }

    }

  }
  }