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    how i can use Interuption in program

    hi everyone , i have a problems about interuption in AVR atmega, i trying to solve a problems is Turn led with two buttons bt1 in pd2 (int0) bt2 in pd3 (int1) LED must be Eteine if it exceeds 20s staying on, for that you need to configure a temp basis interupption for each 1s and realize a...

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