The Serial Monitor is an essential tool when creating projects with Arduino. It can be used as a debugging tool, testing out concepts or to communicate directly with the Arduino board. The Arduino IDE ...

How to run it Open the .ino file in the Arduino IDE. Connect an Arduino Uno via USB. Select Tools > Board > Arduino Uno and the correct Port. Click Upload, then open Tools > Serial Monitor (9600 baud) ...

Have you ever been in a situation, whether in a conference room, a private office, or a room in your own home, where you can't tell if someone is inside (or if the light is on) from the outside ...

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