Teil1

//#include <HardwareSerial.h>
HardwareSerial Receiver(2);  // Define a Serial port instance called 'Receiver' using serial port 2

#define Receiver_Txd_pin 17
#define Receiver_Rxd_pin 16


//int airmass   = 0;
uint16_t ps;
int tankvalue = 0;
//int airinps   = 0;

const int refresh = 100;
const int refresh2 = 500;
unsigned long interval = millis();



#include "EasyNextionLibrary.h"


EasyNex myNex(Serial);



void setup() {

  analogReadResolution(10);

  Serial.begin(115200);
  Receiver.begin(115200, SERIAL_8N1, Receiver_Txd_pin, Receiver_Rxd_pin);  // Define and start Receiver serial port
}

void loop() {

  readairmass();
  readesp();
  //readlight();
  //tankanzeige();
}
void readesp() {
  if ((millis() - refresh2) > interval) {
    while (Receiver.available()) {              // Wait for the Receiver to get the characters
      float testvalue = Receiver.parseFloat();  // Display the Receivers characters
      Serial.print("received=");
      Serial.println(testvalue);
      //myNex.writeNum("n3.val", testvalue);
    }
    interval = millis();
  }
}
void readairmass() {
  if ((millis() - refresh) > interval) {

    int airmass = analogRead(35) / 10;
    int pferde = airmass * 1.25;

    ps = map(pferde, 0, 1023, 0, 1023);  // same like: voltageGraph = analogRead(A0)*5000/1024


    myNex.writeNum("val0.val", ps);
    myNex.writeNum("n6.val", ps);
    //------------------------------------------------------------//

    myNex.writeNum("n0.val", analogRead(35));
    myNex.writeNum("n1.val", airmass);
    myNex.writeNum("n2.val", ps);


    interval = millis();
  }
}