8 Commits

Author SHA1 Message Date
4bd42a9c39 Fix 3.5 CYD: backlight GPIO27, LCD SCL 21 via Wire1, GT911 INT as input.
Align cyd_35r with CYD_PROJECT_GUIDE so ST7796 is not black-screened, LCD does not steal GT911 Wire, and firmware/docs match 22+21 wiring.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-25 12:52:13 +08:00
57644d22ae Add optional cyd_35r (ESP32-3248S035) with 480x320 UI; default remains 2.8. 2026-10-23 16:24:17 +08:00
fd75c6a30d Add cydweb HTML UI preview for catalog cards.
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-23 15:55:22 +08:00
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
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
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
e3f4ea89ff Refresh firmware VERSION.txt with git short hash.
Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-23 14:25:53 +08:00
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