#include <Nextion.h>
#include <NextionPage.h>
#include <NextionButton.h>
#include <SoftwareSerial.h>

SoftwareSerial nextionSerial(10, 11); // RX, TX

Nextion nex(nextionSerial);
NextionPage pgButton(nex, 0, 1, "pgButton");
NextionButton button(nex, 0, 2, "bEgButton");

void setup()
{
  Serial.begin(9600);
  pinMode(13, OUTPUT);

  nextionSerial.begin(9600);
  nex.init();

  Serial.println(pgButton.show());

  Serial.println(button.attachCallback(&callback));

  Serial.println(button.setHAlignment(NEX_FA_LEFT_UP));
  Serial.println(button.setVAlignment(NEX_FA_LEFT_UP));
  Serial.println(button.setFont(1));
  Serial.println(button.setText("Press me!"));

  char buffer[50];
  button.getText(buffer, 50);
  Serial.println(buffer);

  Serial.println(button.setBackgroundColour(NEX_COL_BLUE));
}

void loop()
{
  nex.poll();
}

void callback(NextionEventType type, INextionTouchable *widget)
{
  if (type == NEX_EVENT_PUSH)
  {
    digitalWrite(13, HIGH);
    button.setText("Hyah!");
  }
  else if (type == NEX_EVENT_POP)
  {
    digitalWrite(13, LOW);
    button.setText("You pressed me");
  }
}