dsx2016/lcd1602atest
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81caf7c95a5b3f1eabe4fb0b2cc48e856e4c9749
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Author SHA1 Message Date
DESKTOP-PUHFO60\dsx2016
81caf7c95a Document LCD1602 contrast pot, backlight readability, and usage notes. 
Clarify Vo is hardware-only, backlight-off is usually unreadable on blue/white modules, and refresh meta/changelog.

Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-23 14:36:36 +08:00
DESKTOP-PUHFO60\dsx2016
1817fce92b Refresh firmware VERSION.txt after LCD blank-display fix. 
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-23 14:30:26 +08:00
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
DESKTOP-PUHFO60\dsx2016
e3f4ea89ff Refresh firmware VERSION.txt with git short hash. 
Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-23 14:25:53 +08:00
DESKTOP-PUHFO60\dsx2016
a4c7d54d3e Add LCD1602A I2C test with SoftSPI touch and LVGL. 
PCF8574 backpack on SDA=GPIO22/SCL=GPIO27, demo/hello/clear/backlight UI, and flashable firmware/cyd package.

Co-authored-by: Cursor <cursoragent@cursor.com>
 2026-10-23 14:25:53 +08:00