Jul 5, 2022
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Hướng dẫn sử dụng bàn phím mềm ma trận 4×3 4×4 với Arduino

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Matrix keypads are the kind of keypads you see on cell phones, calculators, microwaves ovens, door locks, etc. They’re practically everywhere.

However, in DIY electronics, they are a great way to let users interact with your project and are often needed to navigate menus, punch in passwords and control robots.

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