Wetterstation

//Empfänger:
#include <Wire.h>
#include <DS1307new.h>

#include <LiquidCrystal.h>

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>


#define CE_PIN   9
#define CSN_PIN 10
const uint64_t pipe = 0xE8E8F0F0E1LL;
RF24 radio(CE_PIN, CSN_PIN);
int werte[2];

uint16_t startAddr = 0x0000;
uint16_t lastAddr;
uint16_t TimeIsSet = 0xaa55;

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);


void setup()
{
  pinMode(2, INPUT);
  digitalWrite(2, HIGH);

  Serial.begin(9600);
  lcd.begin(16, 2);

  void powerUpRx(void);
  radio.begin();
  radio.openReadingPipe(1,pipe);
  radio.startListening();;


  RTC.setRAM(0, (uint8_t *)&startAddr, sizeof(uint16_t));// Store startAddr in NV-RAM address 0x08

// Zum ändern der eingestellten Zeit folgende 2 Zeilen wieder "wirksam" machen
//TimeIsSet = 0xffff;
//RTC.setRAM(54, (uint8_t *)&TimeIsSet, sizeof(uint16_t));

  RTC.getRAM(54, (uint8_t *)&TimeIsSet, sizeof(uint16_t));
  if (TimeIsSet != 0xaa55)
  {
    RTC.stopClock();
    RTC.fillByYMD(2015,2,7);
    RTC.fillByHMS(23,36,0);
    RTC.setTime();
    TimeIsSet = 0xaa55;
    RTC.setRAM(54, (uint8_t *)&TimeIsSet, sizeof(uint16_t));
    RTC.startClock();
  }
  else
  {
    RTC.getTime();
  }

  RTC.ctrl = 0x00;

  RTC.setCTRL();
  Serial.println("DS1307 Testsketch");
  Serial.println("Format is \"hh:mm:ss dd-mm-yyyy DDD\"");
  uint8_t MESZ;
  MESZ = RTC.isMEZSummerTime();
  Serial.print("MEZ=0, MESZ=1 : ");
  Serial.println(MESZ, DEC);
  Serial.println();
}


void loop()
{
  RTC.getTime();
  {
     lcd.clear();
     lcd.setCursor(0, 0);
     lcd.print(RTC.hour, DEC);
     lcd.print(":");
     lcd.print(RTC.minute, DEC);
     lcd.print(":");
     lcd.print(RTC.second, DEC);
     lcd.setCursor(10, 0);
     lcd.print(RTC.day, DEC);
     lcd.print("-");
     lcd.print(RTC.month, DEC);
     lcd.print("-");
     lcd.print(RTC.year - 2000, DEC);

  if ( radio.available() )
  {
    bool done = false;
    while (!done)
    {
     done = radio.read( werte, sizeof(werte) );
     lcd.setCursor(0, 1);
     lcd.print("Lux=");
     lcd.setCursor(4, 1);
     lcd.print(werte[0]);
     lcd.setCursor(11, 1);
     lcd.print(werte[1]);
     lcd.print("C");
   }
  }
      else
      {
      Serial.println("Kein Signal vorhanden");
      lcd.setCursor(0, 1);
      lcd.print("No Signal!");
      }
 }

  Serial.print(" seconds since 1.1.2000:");
  Serial.print(RTC.time2000, DEC);
  uint8_t MESZ = RTC.isMEZSummerTime();
  Serial.print(" MEZ=0, MESZ=1 : ");
  Serial.print(MESZ, DEC);

  Serial.print(" - Address in NV-RAM is: ");
  RTC.getRAM(0, (uint8_t *)&lastAddr, sizeof(uint16_t));
  Serial.print(lastAddr, HEX);
  lastAddr = lastAddr + 1;
  RTC.setRAM(0, (uint8_t *)&lastAddr, sizeof(uint16_t));
  RTC.getRAM(54, (uint8_t *)&TimeIsSet, sizeof(uint16_t));
  if (TimeIsSet == 0xaa55)
  {
    Serial.println(" - Clock was set!");
  }
  else
  {
    Serial.println(" - Clock was NOT set!");
  }
  delay(1000);
}

//Sender:
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

#include <Wire.h>
#include <BH1750.h>

#define CE_PIN   9
#define CSN_PIN 10
const uint64_t pipe = 0xE8E8F0F0E1LL;
RF24 radio(CE_PIN, CSN_PIN);

int sensorPin = 0;

BH1750 lightMeter;

int werte[2];

void setup(){
  Serial.begin(9600);
  lightMeter.begin();
  void powerUpTx(void);
  radio.begin();
  radio.openWritingPipe(pipe);
}


void loop() {
  uint16_t lux = lightMeter.readLightLevel();
  int reading = analogRead(sensorPin);
  float voltage = reading * 5.0;
  voltage /= 1024.0;
  float temperatureC = (voltage - 0.5) * 100;

  {
  Serial.print("Temperatur = ");
  Serial.print(temperatureC);
  Serial.print("Light: ");
  Serial.print(lux);
  Serial.println(" lx");
  }

  werte[0] = (lux);
  werte[1] = (temperatureC);

  radio.write( werte, sizeof(werte)) ;

}