📋 ماموریت ۵۷: منوی سریال

سیم‌کشی

1. Arduino Uno (D8) ⟷ LED (Red) (ANODE)
2. LED (Red) (CATHODE) ⟷ مقاومت 220Ω (PIN1)
3. مقاومت 220Ω (PIN2) ⟷ Arduino Uno (GND1)
4. Arduino Uno (D9) ⟷ LED (Green) (ANODE)
5. LED (Green) (CATHODE) ⟷ مقاومت 220Ω (PIN1)
6. مقاومت 220Ω (PIN2) ⟷ Arduino Uno (GND1)

کد

void setup() {
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  Serial.begin(9600);
  Serial.println("r = red, g = green, o = off");
}

void loop() {
  if (Serial.available() > 0) {
    char c = Serial.read();
    switch (c) {
      case 'r': digitalWrite(8, HIGH); Serial.println("Red on"); break;
      case 'g': digitalWrite(9, HIGH); Serial.println("Green on"); break;
      case 'o': digitalWrite(8, LOW); digitalWrite(9, LOW); Serial.println("All off"); break;
      default: break;   // ignore newlines and other keys
    }
  }
}