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
commit a4c7d54d3e
23 changed files with 2100 additions and 0 deletions
--- a/include/ui.h
+++ b/include/ui.h
@@ -0,0 +1,4 @@
+#pragma once
+
+void ui_create();
+void ui_refresh_lcd();