🪴 ماموریت ۴۳: آبیاری خودکار

سیم‌کشی

1. Arduino Uno (VCC5) ⟷ Soil Moisture (VCC)
2. Soil Moisture (AO) ⟷ Arduino Uno (A0)
3. Soil Moisture (GND) ⟷ Arduino Uno (GND1)
4. Arduino Uno (VCC5) ⟷ Relay (5V) (VCC)
5. Relay (5V) (GND) ⟷ Arduino Uno (GND2)
6. Arduino Uno (D7) ⟷ Relay (5V) (IN)

کد

const int soil = A0, pump = 7;
const int DRY = 700;
const unsigned long SETTLE = 60000;

unsigned long lastWater = 0;

void setup() {
  pinMode(pump, OUTPUT);
  digitalWrite(pump, LOW);
  Serial.begin(9600);
}

void loop() {
  int value = analogRead(soil);
  Serial.print("khak:");
  Serial.println(value);

  bool dry = (value > DRY);
  bool settled = (millis() - lastWater > SETTLE);

  if (dry && settled) {
    Serial.println("ab midaham...");
    digitalWrite(pump, HIGH);
    delay(2000);
    digitalWrite(pump, LOW);
    lastWater = millis();
  }

  delay(3000);
}