DESKTOP-PUHFO60\dsx2016 8ad00d8718 Fix LCD1602 blank display: HD44780 timing, pinmap switch, contrast hint. ...

Match LiquidCrystal_I2C init delays; add Map button for alternate PCF8574 wiring; warn about blue contrast pot.

Co-authored-by: Cursor <cursoragent@cursor.com>

2026-10-23 14:30:21 +08:00

492 B

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