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Arduino Projects Without Any Electric Component? Answered

So Yesterday I Ordered An Arduino Uno R3 ATmega328p So I Want To Learn Some Projects ASAP So I Can Show Someone That It Is Not A Waste Of Money.Are There Any Projects Which Don't Require Any Electrical Components?

And Please I Don't Need One Suggestion Saying That You Can See A Light Turning On And Off (I'm Tired Of It).

Sorry If This Question Is Already Asked (Link Me There).

Or If You Know Any Article(s) Link Me There.


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3 years ago

perhaps hacking old electical equip for parts.