timer - Arduino: how to create an ALARM CLOCK with an arduino -


arduino virgin here gentle. im trying create alarm clock system using arduino @ push of button, sounds alarm , when 'alarm clock' lifted disconnects alarm clock , starts timer sounds alarm after 3minutes...

what kind of hardware should looking @ buying make dreams come true?

cheers.

the easiest , cheapest way use button, piezo buzzer, , 2 resistors. build this circuit. button connected digitalinput, piezo buzzer connected pwm pin analogoutput.


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