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void startTimer() { lcd.clear(); lcd.setCursor(0, 0); lcd.print("Timer started!"); while (minutes > 0 || seconds > 0) { updateTimerDisplay(); delay(1000); seconds--; if (seconds < 0) { minutes--; seconds = 59; } } lcd.clear(); lcd.setCursor(0, 0); lcd.print("Timer finished!"); // 倒數結束後重置時間並重新開始倒數 RGBLED_blink(); RGBLED_OFF(); }
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