So I'm making a booth for school where you have to press a sequence on 4 buttons to get into it. I modified some code to use 4 buttons instead of 9. but I don't know how to have a longer password than 3 digits and I want to have say 5 leds that light up as you press the right button but if you mess …

Keypad Led Sequence puzzle

greengoatman May 30, 2018, 5:05am 3

Yeah its meant to be easy, its so people can get into my booth, I wouldn't want it too hard.

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