¢£Arduino ¥¹¥±¥Ã¥ÁÎã / Blink Without Delay
Arduino ¤Î¥¹¥±¥Ã¥ÁÎã¡ÖBlink Without Delay¡×¤ò»î¤·¤Æ¤ß¤Þ¤¹¡£
TUTORIALS > Built-In Examples > 02.Digital > BlinkWithoutDelay
²óÏ©¿Þ¤Ç¤Ï³°Éô¤Ë LED ¤òÀܳ¤¹¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¤¬¡¢Æ⢠LED ¤òÅÀÌǤµ¤»¤ë¤Î¤ÇɬÍפϤ¢¤ê¤Þ¤»¤ó¡£¥¹¥±¥Ã¥ÁÎã¤ò¤½¤Î¤Þ¤Þ IDE ¤Ë¥³¥Ô¡¼¥¢¥ó¥É¥Ú¡¼¥¹¥È¤·¡¢Arduino ¤Ø½ñ¤¹þ¤á¤Ð´°À®¤Ç¤¹¤Í¡£
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const int ledPin = LED_BUILTIN;
int ledState = LOW;
unsigned long previousMillis = 0;
const long interval = 1000;
void setup() {
pinMode(ledPin, OUTPUT);
}
void loop() {
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
if (ledState == LOW) {
ledState = HIGH;
} else {
ledState = LOW;
}
digitalWrite(ledPin, ledState);
}
}
delay ¤ò»È¤ï¤º¤Ë¡¢millis() ¤Ç¥¤¥ó¥¿¡¼¥Ð¥ë»þ´Ö¤òĶ¤¨¤¿¤«¤É¤¦¤«¤ò¥Á¥§¥Ã¥¯¤¹¤ëÊýË¡¤Ç¤¹¤Í¡£
²¶¤¬µ¤¤Ë¤Ê¤Ã¤¿¤Î¤Ï¡¢LED ¤ÎÅÀÌǤΤ¿¤á¤Ë ledState ¤òȿž¤µ¤»¤ëÉôʬ (16〜20¹Ô) ¤Ç¤¹¡£if() ¤ÇȽÄꤹ¤ë¤Î¤Ï¤È¤Ã¤Æ¤â¤ï¤«¤ê¤ä¤¹¤¤¤Ç¤¹¤¬¡¢Ê̤ÎÊýË¡¤ËÊѹ¹¤·¤Æ¤ß¤Þ¤·¤ç¤¦¡£
ledState = ~ledState;
ledState ¤ò NOT ±é»»¤Çȿž¤µ¤»¤Æ¤ß¤Þ¤·¤¿¡£¤³¤Î¾ì¹ç¤Ï LOW=0 ¡¢HIGH=-1 ¤È¤Ê¤ê¤Þ¤¹¡£¥Ó¥Ã¥È¤¬¤¹¤Ù¤Æȿž¤·¤Æ¤¤¤ë¤È¤¤¤¦¤³¤È¡£LED ¤ÎÅÀÌǤÏÀµ¾ï¤Ë¹Ô¤ï¤ì¤Æ¤¤¤Þ¤¹¤Î¤Ç¡¢¤¿¤Ö¤ó 1 ¥Ó¥Ã¥ÈÌܤÎÃͤÇÀ©¸æ¤·¤Æ¤¤¤ë¤Î¤Ç¤·¤ç¤¦¡£
NOT ¤Ï¥Ó¥Ã¥Èñ°Ì¤ÎÈÝÄê¤Ç¤¹¤¬¡¢¼¡¤ÎÎã¤Ï¥Ö¡¼¥ê¥¢¥óÃͤÇȿž¤µ¤»¤Þ¤¹¡£
ledState = !ledState;
½ÐÎÏ¤Ï 0 ¤È 1 ¤Ë¤Ê¤ê¤Þ¤·¤¿¡£¤³¤Î¾ì¹ç¤Ï¡¢ÊÑ¿ô¤ò¥Ö¡¼¥ë·¿¤Ë¤·¤ÆÃÍ¤Ï true - false ¤È¤¹¤ë¤Ù¤¤Ê¤Î¤Ç¤·¤ç¤¦¤Í¡£
¼¡¤ÎÎã¤Ï¡¢1 ¥Ó¥Ã¥ÈÌܤÀ¤±¤òȿž¤µ¤»¤ëÊýË¡¤Ç¤¹¡£XOR ±é»»¤Ç¥Ó¥Ã¥ÈÁàºî¤·¤Æ¤¤¤Þ¤¹¡£
ledState = ledState^1;
¤³¤ì¤ÏÊ£¹ç±é»»»Ò¤ò»È¤Ã¤Æ¡¢
ledState ^= 1;
¤Î¤è¤¦¤Ë½ñ¤¯¤³¤È¤¬¤Ç¤¤Þ¤¹¡£¸Ä¿ÍŪ¤Ë¤Ï¤³¤ÎÊýË¡¤¬¹¥¤¤Ç¤¹¤¬¡¢ÍýÏÀŪ¤Ë¤É¤ì¤¬¤è¤¤¤Î¤«¤Ï¡¢²¶¤Ë¤Ï¤ï¤«¤ê¤Þ¤»¤ó (^_^;)
- 2019.09.21 Saturday
- ÅŻҹ©ºî
- 22:01
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