New answers tagged button
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Arduino button voltage versus HIGH/LOW state
To answer the posted question literally: Yes, it is the correct way for your circuit, which has the button between the pin and GND, and the LED between VCC and the pin:
simulate this circuit – ...
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Arduino button voltage versus HIGH/LOW state
If you want high state to power in LED and low to disable it reverse your LED.
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Debouncing a button with interrupt
The problem is that you need to check whether the last interrupt was far enough in the past that the output can be considered stable.
The most obvious solution to me is to have the ISR record the time ...
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