[Arduino IDE demo source code for KC868-A64]--#05-PCF8575_Input_code

[Regis]

Hi, 

Can you help me, i can't go on because  am stopped

I tried the demo code for A64 you recommande, but it doesn't work. After transfering code, the A64 doesn't work (impossible to connect on his IP adress, light of ethernet connection off).

So, I  try to use a very simple code, as below, but it doesn't work too, the A64 stopped,; I need to download firmaware again. I used as you recommande board NODEMCA-32S. 
Code 

#include "Arduino.h"
void setup() {
  // put your setup code here, to run once:
}
void loop() {
  // put your main code here, to run repeatedly:
}

Le croquis utilise 230493 octets (17%) de l'espace de stockage de programmes. Le maximum est de 1310720 octets.
Les variables globales utilisent 20968 octets (6%) de mémoire dynamique, ce qui laisse 306712 octets pour les variables locales. Le maximum est de 327680 octets.
esptool.py v4.5.1
Serial port COM3
Connecting....
Chip is ESP32-D0WD-V3 (revision v3.1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: d4:d4:da:e1:1e:38
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 921600
Changed.
Configuring flash size...
Flash will be erased from 0x00001000 to 0x00005fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x0000e000 to 0x0000ffff...
Flash will be erased from 0x00010000 to 0x00048fff...
Compressed 17568 bytes to 12204...
Writing at 0x00001000... (100 %)
Wrote 17568 bytes (12204 compressed) at 0x00001000 in 0.5 seconds (effective 278.3 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 146...
Writing at 0x00008000... (100 %)
Wrote 3072 bytes (146 compressed) at 0x00008000 in 0.1 seconds (effective 282.9 kbit/s)...
Hash of data verified.
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.2 seconds (effective 414.9 kbit/s)...
Hash of data verified.
Compressed 230864 bytes to 127838...
Writing at 0x00010000... (12 %)
Writing at 0x0001e038... (25 %)
Writing at 0x000237a7... (37 %)
Writing at 0x00028af6... (50 %)
Writing at 0x0002dfc9... (62 %)
Writing at 0x000364d8... (75 %)
Writing at 0x0003e6aa... (87 %)
Writing at 0x00043ca0... (100 %)
Wrote 230864 bytes (127838 compressed) at 0x00010000 in 2.5 seconds (effective 744.0 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...