CompPicture.ino

#include "Nextion.h"

NexPicture p0 = NexPicture(0, 1, "p0");

NexTouch *nex_listen_list[] = 
{
    &p0,
    NULL
};

void p0PopCallback(void *ptr)
{
    uint32_t number = 0;
    dbSerialPrintln("p0PopCallback");

    p0.getPic(&number);

    if (number == 1)
    {
        number = 2;    
    }
    else
    {
        number = 1;
    }
    
    p0.setPic(number);
}


void setup(void)
{
    nexInit();
    p0.attachPop(p0PopCallback);
    dbSerialPrintln("setup done");
}

void loop(void)
{
    nexLoop(nex_listen_list);
}