A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

Normalmente se hacen teclados o macropads con Arduino Micro Pro. Sin embargo, puede que no tengas a tu disposición uno de estos o te hayas equivocado al comprar (como yo). El arduino nano no tiene HID ...

Objective: Often times, we need to secure a room at our home or office (perhaps a secret dexter ’s laboratory) so that no one can access the room without our permission and ensure protection against ...

Most of us have had a sibling that would sneak into our room to swipe a transistor, play your guitar or just mess with your stuff in general. Now there’s a way to be immediately alerted when said ...