Jun 27, 2022
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Hướng dẫn kết nối màn hình LCD với Arduino bằng giao tiếp I2C

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If you have ever tried to connect an LCD display with an Arduino, you may have noticed that it consumes a lot of pins on the Arduino. Even in 4-bit mode, the Arduino still requires a total of seven connections – which is half of Arduino’s available digital I/O pins.

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