USE PCF8574 FOR ESP32 INPUT PORTS

[GVDC]

Hello, there is no error message. The screen shows every 0,3 sec for all 8 relais :"Key 1...8 pressed". You can only stop the text by switching out the power.

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Hello, I have tried again. The serial monitor writes :
Init pcf8574...OK
KEY1 PRESSED
KEY2 PRESSED.....
KEY8 PRESSED
KEY2 PRESSED
KEY2 PRESSED..... continiously


IC adress in sketch :
PCF8574 pcf8574(0x22,4,5)
I made a copy of the download 8574-DI...