LCD & Keypad Shield Quickstart Guide | Freetronics

LCD & Keypad Shield Quickstart Guide | Freetronics

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日期:2025-06-21
Power Requirements The LCD & Keypad Shield requires a good 5V power supply to ensure the backlight fully illuminates and the display contrast is high, and if you power your Arduino from USB with the LCD Shield attached you may experience a voltage drop ov...看更多