Hi Brains trust. I am relatively new to Arduino. This is my second project. I am trying to setup a relay timer where the trigger switch can be used to both initiate the timer and activate the relay, as well as reset the relay and turn it off if required. Currently I have the duration set to 10sec,…

You have the triggerPin set as INPUT. That suggests you have the switch wired with one side connected to the trigger pin and the other to 5V. If the is the case, when the switch is pressed, the pin will go high but when you release the switch it will be floating unless you have a resistor attached …

Interrupt condition not working

Projects Programming

killzone_kid September 19, 2021, 1:53pm 2

You shouldn’t do any serial prints inside interrupt routine

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Interrupt condition not working

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