---
type: "topic"
created: "2024-01-06T01:25:36.094Z"
updated: "2024-01-06T01:25:36.094Z"
---

# Arduino

```c++ Sprinklers
const int last = 8;
const int first = 5;
const int minutes = 1;

int pin;
int counter = 0;

void setup() {
  pinMode(first, OUTPUT);
  pinMode(first + 1, OUTPUT);
  pinMode(first + 2, OUTPUT);
  pinMode(first + 3, OUTPUT);
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(first, HIGH);
  digitalWrite(first + 1, HIGH);
  digitalWrite(first + 2, HIGH);
  digitalWrite(first + 3, HIGH);
  digitalWrite(LED_BUILTIN, LOW);
}

void loop() {
  pin = first + counter;
  digitalWrite(pin, LOW);
  if(counter == 0)
    delay(minutes * 60 * 1000UL);
  else if(counter == 1)
    delay(minutes * 30 * 1000UL);
  else if(counter == 2)
    delay(minutes * 60 * 1000UL);
  else if(counter == 3)
    delay(minutes * 60 * 1000UL);
  else
    delay(minutes * 1 * 1000UL);
  digitalWrite(pin, HIGH);
  counter += 1;
  if (pin >= last)
  {
    counter = 0;
  }
}
```