sstaub / nextionx2 Goto Github PK

Hello,
Excellent library. I am enjoying it.

I have a gauge on the display with a value 90 as it's default value. I send an Arduino command to set it to 180 and the dial moves to 180. However, it is still showing the old 90 value dial hand. So basically I have two dial hands; one at 90 and the other at 180. Is there some clear command I should put in prior to changing the value?

I tried both these ways:

NextionComponent gauge0(nextion, 0, 2);

void loop(){
   //gauge0.value(180);
    gauge0.attribute("val", 180);
} 

thanks for the help.

Hi,

I'm just here for advice this is not really a bug in Nextion X2 library. What I experience is that when I add some additional logic to the loop-method it doesn't trigger my btnStepUp method any more. When I disable the sensor check it does work. I presume it's because the Nextion display already sent the data but the arduino is not listening because it's busy checking IO ports. Do you have experience on how to handle this?

#include "NextionX2.h"
#include "SoftwareSerial.h"
#include <ezButton.h>

SoftwareSerial SerialNextion(PA10, PA9);
NextionComPort nextion;

#define topPin PB10

NextionComponent btUp(nextion, 0, 8);
ezButton topSensor(topPin);

void setup()
{
  nextion.begin(SerialNextion);

  pinMode(LED_BUILTIN, OUTPUT);

  btUp.touch(btnStepUp);
}

bool initDone = false;
void loop()
{
  nextion.update();

  /// If this is enabled nextion touch trigger doesn't work anymore
  // topSensor.loop();
  // if (dir == CCW && topSensor.getState() == LOW)
  // {
  //   topPosition = stepper.currentPosition();
  //   dir = CW;
  // }

  // I also tried to add another update() at the end of the loop but no difference
  // nextion.update();
}

void btnStepUp()
{
  digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));
}

Hi, first off, thanks for taking the time to author such a great library! With it I have been almost able to do everything i want BUT

There seems to be a limitation on the amount of characters we can use with
item.text() function as well as item.attribute("txt", )

I am trying to write a long (113 char) url to the text attribute of a QRCode object but it would seem there is a limitation of about 30-40 characters. Smaller strings work fine.

Causes a CPU crash and reset...

Platform: ESP32

Stack smashing protect failure!

abort() was called at PC 0x4013820b on core 1

ELF file SHA256: 0000000000000000

Backtrace: 0x40089214:0x3ffb1e10 0x40089491:0x3ffb1e30 0x4013820b:0x3ffb1e50 0x400d0eb1:0x3ffb1e70 0x400d14c9:0x3ffb1ed0 0x400d1a2a:0x4f4e4d4c

Rebooting...
```
`

A get Page function is missing. For each comPort there should a variable for the recent page number. Also a callback for page change is needed and a dedicated setPage function.