[Arduino IDE demo source code for KC868-E16S]--#08-E16S-Ethernet_Web_server_code

[fra6767ita]

GOOD MORNING,
I have this error, can you help me with the right library for arduino?
thank you

Arduino:1.8.19 (Windows 10), Scheda:"Arduino Nano, ATmega328P"





















KC868-E16S_Web_Server-ETH:5:10: fatal error: PCF8574.h: No such file or directory

#include "PCF8574.h"

^~~~~~~~~~~

compilation terminated.

exit status 1

PCF8574.h: No such file or directory

























KC868-E16S_Web_Server:8:10: fatal error: PCF8574.h: No such file or directory

#include "PCF8574.h"

^~~~~~~~~~~

compilation terminated.

exit status 1

PCF8574.h: No such file or directory