詢問有甚麼方式可以取代delay 的指令

超新手 · 發表於 2017-10-20 08:33:35

unsigned char State = 0;
unsigned int Prev;
void loop() {
  if(State == 0) {
   if(判斷式1) {
      State = 1;
      Prev = millis();
   }
  } else {
unsigned int Time = millis() - Prev;
if(Time >= 5000) {
   if(判斷式2) {
   }
   State = 0;
}
  }
}

超新手 · 發表於 2017-10-23 11:40:23

你這個程式有點奇怪
只要 val1等於 HIGH 或是 val2等於LOW
valve 就會在 5 秒後就為 HIGH
永遠不會變 LOW

unsigned char State = 0;
unsigned int Prev;
void loop() {
..................
  if (State == 0) {
if (val1 == HIGH || val2 == LOW) {
   State = 1;
   Prev = millis();
}
  } else {
unsigned int Time = millis() - Prev;
if (Time >= 5000) {
   digitalWrite(valve, HIGH);
   State = 0;
}
  }
}

超新手 · 發表於 2017-12-25 17:13:42

另外定義一個 int Prev2;
unsigned char State = 0;
unsigned int Prev;
unsigned int Prev2;
void setup() {
...........................
Prev =  millis();
Prev2 =  millis();
}
void loop() {
//第一組
  if (State == 0) {
if (val1 == HIGH || val2 == LOW) {
   State = 1;
   Prev = millis();
}
  } else {
unsigned int Time = millis() - Prev;
if (Time >= 5000) {
   digitalWrite(valve, HIGH);
   State = 0;
}
  }
//第二組
  if (判斷式) {
   Prev2 = millis();
  } else {
unsigned int Time2 = millis() - Prev2;
if (Time2 >= 5000) {

}
  }
}

超新手 · 發表於 2017-12-26 05:20:58

本帖最後由超新手於 2017-12-26 05:24 編輯

程式本來就是前半段加 delay
if (State == 0) {
if (val1 == LOW &&val2 == HIGH) {
   State = 1;
   Prev = millis();
} else {
   digitalWrite(valve, LOW);
}
  } else {
unsigned int Time = millis() - Prev;
if (Time >= 5000) {
   digitalWrite(valve, HIGH);
   State = 0;
}
  }

超新手 · 發表於 2017-12-26 15:42:04

本帖最後由超新手於 2017-12-26 15:54 編輯

你括號括錯了
中間少了一個, 應該跑到最下面去了
if (State == 0) {
if (val1 == HIGH || val2 == LOW) {
   State = 1;
   Prev = millis();
}
  }
  else {
unsigned int Time = millis() - Prev;
if (Time >= 5000) {
   digitalWrite(valve, HIGH);
   State = 0;
}
  } //少了這個右括號, 少了這個右括號, 少了這個右括號

if (State2 == 0) {
if((val1==LOW) && (val2==HIGH)){
   State2 = 1;
   Prev2 = millis();
} else {
   digitalWrite(botpin, HIGH);
}
  } else {
unsigned int Time2 = millis() - Prev2;
if (Time2 >= 5000) {
   digitalWrite(botpin, LOW);
   State2 = 0;
}
  }
// 所以你應該在這邊會多一個右括號, 記得去掉

超新手 · 發表於 2017-12-26 15:55:28

本帖最後由超新手於 2017-12-26 16:06 編輯

己經回答在 11 樓
你括號括錯地方

超新手 · 發表於 2017-12-26 16:41:58

你 high low 寫反了
if (State2 == 0) {
if((val1==LOW) && (val2==HIGH)){
   State2 = 1;
   Prev2 = millis();
}
else  {
   digitalWrite(botpin, LOW);
}
  } else {
unsigned int Time2 = millis() - Prev2;
if (Time2 >= 5000) {
   digitalWrite(botpin, HIGH);
   State2 = 0;
}
  }

if (State == 0) {
if (val1 == HIGH || val2 == LOW) {
   State = 1;
   Prev = millis();
}
  }
  else {
unsigned int Time = millis() - Prev;
if (Time >= 5000) {
   digitalWrite(valve, HIGH);
   State = 0;
}
  }

		自動登錄	找回密碼
密碼			申請會員