Arduino setup runs when relay activates

[TomGeorge]

Hi,
If you read the instructions linked, you code would look like this;

#include "DHT.h"
#define DHTPIN 7
#define DHTTYPE DHT11
int relayPin = 8;
int sensor_pin = A0; // Soil Sensor input at Analog PIN A0
float fuktighetsprocent;
int sensor_analog;
DHT dht(DHTPIN, DHTTYPE);
void setup()
{
  Serial.begin(9600);
  Serial.println("Datum och tid, Fuktighet %, Tempratur *C, Jordfuktighet %");
  digitalWrite(relayPin, HIGH);
  pinMode(sensor_pin, INPUT);
  pinMode(relayPin, OUTPUT);
  dht.begin();
}

void loop()
{
  delay(1000);
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  if (isnan(h) || isnan(t))
  {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  sensor_analog = analogRead(sensor_pin);
  fuktighetsprocent = ( 100 - ( (sensor_analog / 1023.00) * 100 ) );
  float hj = fuktighetsprocent;
  Serial.print(",");
  Serial.print(h);
  Serial.print(",");
  Serial.print(t);
  Serial.print(",");
  Serial.println(hj);
  if (hj < 50)
  {
    //pumpOn();
    digitalWrite(relayPin, LOW);
    delay(2000);
  }
  else
  {
    //pumpOff();
    digitalWrite(relayPin, HIGH);
  }
  delay(1000);
}

Tom..