nextion_graph

unsigned int data_pres = 0;
unsigned int avg = 0;

#include <movingAvg.h>
movingAvg avgPres(20);
#include <SoftwareSerial.h>
SoftwareSerial nexSerial(3, 2); // RX, TX


void setup() {
  Serial.begin(9600);
  nexSerial.begin(9600);
  pinMode(A0, INPUT);
  avgPres.begin();
  delay(1000);
}

void loop() {
  //data_pres = map(analogRead(A0),0,1024,0,255);  //Read the pot value ann map it to 0.255 (max value of waveform=255)
  data_pres = analogRead(A0)*4;
  avg = avgPres.reading(data_pres);
  Serial.println(avg);
  String Tosend = "add ";
    Tosend += 1;
    Tosend += ",";
    Tosend += 0;
    Tosend += ",";
    Tosend += data_pres;
    nexSerial.print(Tosend);
    nexSerial.write(0xff);
    nexSerial.write(0xff);
    nexSerial.write(0xff);

  delay(5);
}