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標題: 求助 Arduino Mega 2560 LCD+直流馬達控制 [打印本頁]

作者: a002001003 時間: 2014-8-7 17:52
標題: 求助 Arduino Mega 2560 LCD+直流馬達控制
各位大大好，我使用Arduino Mega 2560+LCD Keypad Shield+一顆直流馬達

我有一個程式是可以在LCD上設定時間以及鬧鐘，但我想把馬達運轉後停下來也加進去(鬧鐘響時)，可是加進去後，馬達不是不動不然就是一直轉停不下來，請問大大們我該怎麼加比較好呢??

下面是設定鬧鐘的部分，因為整個程式太長我貼不上來......，我想在鬧鐘響後 --> 馬達運轉5秒 -->馬達停止
void setAlarm()
{
  int button = 0;
  // Pass maxCount to getTimerMinutes
  alarmHours = getTimerMinutes("Set Alarm Hour", alarmHours, 23);
  // Validate alarm hours > 0 and < 24
  if (alarmHours >= 0 && alarmHours < 24)
  {
// Pass maxCount to getTimerMinutes
alarmMinutes = getTimerMinutes("Set Minutes", alarmMinutes, 59);
// allow alarm minutes to be 0
if (alarmMinutes < 60)
{
   lcdClear();
   lcd.setCursor(0,1);
   //display alarm time
   lcd.print(alarmHours);
   lcd.print(":");
   if (alarmMinutes < 10)
      lcd.print("0");
   lcd.print(alarmMinutes);
   if (button == btnRIGHT)
   {
      timedBeep(shortBeep,1);
      alarmSet = true;
      lcd.setCursor(0,0);
      lcd.print("Alarm Set for");
      delay(1000);
      return;
   }
   else
   {
      timerCancelled("Alarm");
      return;
   }
}
else
{
   timerCancelled("Alarm");
}
  }
  else
  {
timerCancelled("Alarm");
  }
}

// setDateTime feature
void setDateTime()
{
  int button = 0;

  //get month
  int setMonth = getTimerMinutes("Set Month", lastMonth, 12);
  if (setMonth > 0 && setMonth < 13)
  {
//get day
// default day and hour settings on set date/time
int setDay = getTimerMinutes("Set Day", lastDay, 31);
if (setDay > 0 && setDay < 32)
{
   //get year
   int setYear = getTimerMinutes("Set Year", lastYear, 2999);
   if (setYear > 2000 && setYear < 3000)
   {
      //get hour
      int thisHour = lastHour;
      // default day and hour settings on set date/time
      int setHour = getTimerMinutes("Set Hour", thisHour, 23);
      if (setHour >= 0 && setHour < 24)
      {
      //get minutes
      int setMinute = getTimerMinutes("Set Minute", lastMinute, 59);
      if (setMinute < 60)
      {
         // RTC.adjust(DateTime(setYear,setMonth,setDay,setHour,setMinute)); // for DS1307
            setTime(setHour, setMinute, 0, setDay, setMonth, setYear); // sec, min, hour, date, month, year

            lcd.setCursor(0,0);
            lcd.print("Saving...    ");
            delay(1000);
            return;
         }
         else
         {
            timerCancelled("");
            return;
         }
      }
      else
      {
         timerCancelled("");
      }
      }
      else
      {
      timerCancelled("");
      }
   }
   else
   {
      timerCancelled("");
   }
}
else
{
   timerCancelled("");
}

}

// read the buttons from LCD keypad shield
int read_LCD_buttons()
{
  adc_key_in = analogRead(0);    // read the value from the sensor
  // my buttons when read are centered at these valies: 0, 131, 307, 481, 722
  // we add approx 50 to those values and check to see if we are close
  // No button pressed should be 1023
  if (adc_key_in > 1000) return btnNONE; // We make this the 1st option for speed reasons since it will be the most likely result
  if (adc_key_in < 50) return btnRIGHT;
  if (adc_key_in < 195)  return btnUP;
  if (adc_key_in < 380)  return btnDOWN;
  if (adc_key_in < 555)  return btnLEFT;
  if (adc_key_in < 790)  return btnSELECT;
  return btnNONE;  // when all others fail, return this...

}

void timedCountDown(int secondCount, char countLabel[])
{
  long seconds = 0;
  long minutes = 0;

  lcdClear();
  lcd.print(countLabel);
  for (int i = secondCount; i >= 0; i--)
  {
seconds = i;
minutes = i / 60;
if (minutes > 0)
{
   seconds = seconds - (minutes * 60);
}

if (minutes > 0)
{
   lcd.setCursor(0,1);
   lcd.print(minutes);
   lcd.print(" min ");
}
else
{
   lcd.setCursor(0,1);
}
if (seconds < 10) lcd.print("0");
lcd.print(seconds);
lcd.print(" sec remaining");
if (seconds > 0) delay(1000);
if (read_LCD_buttons() == btnSELECT) //cancel
{
   timerCancelled("Timer");
   i = 0;
   return;
}
  }
  lcd.setCursor(6,1);
  timedBeep(longBeep,3);
}

// Pass maxCount to getTimerMinutes
int getTimerMinutes(char timerText[], int startNum, int maxCount)
{
  int minutes = startNum;
  int button = 0;
  lcdClear();
  lcd.print(timerText);
  lcd.setCursor(0,1);
  lcd.print(minutes);

  while (button != btnSELECT)
  {
button = read_LCD_buttons();
Serial.println(button);

if (button == btnLEFT)
{
   if ((minutes + 10) <= maxCount)
   {
      timedBeep(shortBeep,1);
      minutes = minutes + 10;
   }
   else
   {
      timedBeep(shortBeep,2);
   }
}

if (button == btnUP)
{
   if (minutes < maxCount)
   {
      timedBeep(shortBeep,1);
      minutes++;
   }
   else
   {
      timedBeep(shortBeep,2);
      minutes = 0;
   }
}
if (button == btnDOWN)
{
   if (minutes > 0)
   {
      timedBeep(shortBeep,1);
      minutes--;
   }
   else
   {
      timedBeep(shortBeep,2);
      minutes = maxCount;
   }
}
if (button == btnRIGHT)
{
   timedBeep(shortBeep,1);
   return minutes;
}
lcd.setCursor(0,1);
lcd.print(minutes);
lcd.print(" ");
  }
  return 0;
}

void timedBeep(int beepTime, int beepCount)
{
  for (int i = 0; i < beepCount; i ++)
  {
digitalWrite(beeper, HIGH);
delay(beepTime);
digitalWrite(beeper, LOW);
delay(beepTime);
  }
}

void lcdClear(){
  lcd.clear();
  lcd.begin(16,2);
  lcd.setCursor(0,0);
}

void timerCancelled(char message[])
{
  lcdClear();
  lcd.print(message);
  lcd.print(" Cancelled");
  timedBeep(shortBeep,3);
}

void setOffAlarm()
{
  int button = 0;
  int i = 0;
  Serial.println(i);
  digitalWrite(backLight, HIGH); // turn backlight on
  while (button != btnSELECT)
  {
button = read_LCD_buttons();
lcdClear();
i++;
if (i > 50)
{
   lcdClear();
   lcd.print("Alert Alert");
   lcd.setCursor(0,1);
   lcd.print("    Alert Alert");
   i = 0;
   timedBeep(shortBeep,3);
}

  }
  timerCancelled("Alarm");
  alarmSet = false;
}

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