I need to do a timer with 2 buttons(the first to run and pause, and the second to reset), and LCD 16x2

[anon73444976]

@ian_rapini

while(estadoBotao2 == LOW){
sec = 0;
min = 0;
hora = 0;
zero = 0;
lcd.clear();
}

I don't know what "bro" means, but what, in the loop I quoted, causes estadoBotao2 to change state?