Hello, New on this forum, I'd like ask question about using LCD 1602 keypad. My problème is that I want to use digital pin 2 entry with a contact in pull up. All works fine without LCD keypad, but with LCD keypad, the signal digitalRead(Contact) is sometime moving from 0 to 1 without pressing bu…

Using Arduino UNO wifi Rev2 with LCD 1602 Keypad

Paul_B July 28, 2021, 11:18am 11

Do you actually know what interrupts are?

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