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This is for questions about the official IDE. The open-source IDE makes it easy to write code and upload it to any Arduino board. It runs on Windows, macOS and Linux.

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How does one build a door motion sensor project with Arduino Uno board to send alerts to an ...

If I could comment on this, I would say that this question really sounds like you haven't actually done any research to look into a solution. But, in simple terms: Arduino Uno, Android phone, GSM s …
craigkoiter's user avatar