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Arduino Nano Keyboard. Keys keeps pressed

Not sure this is your issue, but there is definitely a problem here: void finger_ButtonsControl(int x, int y) { // Check if a button is pressed for (int x = 2; x <5; x++) { for (int ...
Edgar Bonet's user avatar
  • 43.6k
1 vote

Metal pushbutton voltage drops only to 3.15V when OFF

In all the codes in that tutorial the digital pin is configured as INPUT_PULLUP, so the internal pullup resistor will pull it to 3.3V. Since you connected to pin to NC (normally connected), the button ...
chrisl's user avatar
  • 16.4k

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