繼電器控制LED燈
接線圖
程式碼
int relayPin = 8;
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
pinMode(relayPin, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
digitalWrite(relayPin, HIGH);
delay(1000);
digitalWrite(relayPin, LOW);
delay(1000);
}
LED數碼管
接線圖
程式碼
// the setup routine runs once when you press reset:
void setup() {
// initialize the digital pin as an output.
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(7, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
}
// the loop routine runs over and over again forever:
void loop() {
digitalWrite(4, LOW);
delay(1000);
digitalWrite(5, LOW);
delay(1000);
digitalWrite(6, LOW);
delay(1000);
digitalWrite(7, LOW);
delay(1000);
digitalWrite(8, LOW);
delay(1000);
digitalWrite(9, LOW);
delay(1000);
digitalWrite(10, LOW);
delay(1000);
digitalWrite(11, LOW);
delay(1000);
digitalWrite(4, HIGH);
delay(1000);
digitalWrite(5, HIGH);
delay(1000);
digitalWrite(6, HIGH);
delay(1000);
digitalWrite(7, HIGH);
delay(1000);
digitalWrite(8, HIGH);
delay(1000);
digitalWrite(9, HIGH);
delay(1000);
digitalWrite(10, HIGH);
delay(1000);
digitalWrite(11, HIGH);
delay(1000);
}
