ard.ino

#include "DHT.h"

#define DHTPIN 2     // what pin we're connected to

#define DHTTYPE DHT22

float t = 0;
float h = 0;
unsigned long czas;
uint8_t acc = 13;

DHT dht(DHTPIN, DHTTYPE);

void setup () {
  Serial.begin(9600);
  pinMode(A0, INPUT);
  Serial.println("SimpleDataLogger ver. 0.21 by Patryk Pietrzak, Wiktor Tkaczyński");
  Serial.println("time t*C h% light");
}

void loop() {

  czas = millis();

  float h = dht.readHumidity(); //temperatura
  float t = dht.readTemperature(); //wilgotnosc
  int l = analogRead(A0); //swiatlo

  if (isnan(t) || isnan(h)) { //suma kontrolna
    Serial.print(czas / 1000);
    Serial.print(" ");
    Serial.println("ERR|0"); // 0 - data fetch failed
  }
  else { //pomiary
    digitalWrite(acc, HIGH);


    String returned_data = czas/1000 + "|" + t + "|" + h + "|" + l;

    Serial.println(returned_data); // return value with \r\n delimiter

    digitalWrite(acc, LOW);
  }
  delay(1000);

}