examples/lvgldemo: SignBridge UI with SC2336 camera preview and boot screen - #123
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❌ CLA Signature Required@IsXiaoXiaoZhou Some contributors need to sign the CLA:
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📋 View detailed check results: Action Run #33854176609 💡 Tip: All contributors must sign the CLA before the PR can be merged. |
❌ CLA Signature Required@IsXiaoXiaoZhou Some contributors need to sign the CLA:
Please:
📋 View detailed check results: Action Run #33862181523 💡 Tip: All contributors must sign the CLA before the PR can be merged. |
- boot screen: openvela logo with progress bar, then hand over to the SignBridge main UI (light card layout: camera preview / recognition result / speaker control) - camera module: SC2336 RAW8 1280x720@30fps over 2 lanes through the native esp32p4 MIPI-CSI driver; frames polled from an LVGL timer and rendered into a canvas preview (crop + nearest-neighbor grayscale RGB565); register sequence from the ESP-IDF validated config - expose g_lvgl_heartbeat (referenced by the board bringup LVGL watchdog) - assets: zh_font_16/zh_font_40 CJK glyph libraries, logo data, audio beep helper - guard new modules with CONFIG_EXAMPLES_LVGLDEMO and keep the stock entry when the demo is disabled Target board: esp32p4-function-ev-board (MIPI-DSI 1024x600 + GT911). Signed-off-by: IsXiaoXiaoZhou <zhouyuxiang.is@example.com>
- camera_module: restructure around a frame-callback contract (esp32p4_mipi_csi_frame_cb_t) with an explicit capture state machine (CSI_START -> STREAMING), current-frame snapshot for the LVGL timer, crop + nearest-neighbor scale into the preview canvas - ui_main / boot_screen / audio_beep / lvgldemo: translate file-header and inline comments to English (NuttX style), move declarations to the canonical section order, keep the UI <-> audio decoupling via board_audio_beep() - zh_font_16 / zh_font_40: regenerate with lv_font_conv (full CJK symbol set, no local build paths in headers) - lvgldemo: parameterize boot flow (BOOT_DURATION_MS, status text) Signed-off-by: IsXiaoXiaoZHou <zhou15325553865@outlook.com>
- zh_font_16/zh_font_40: move the glyph_dsc table out of the "Public Functions" section (keep it under "Private Data") and mark the lv_font_t descriptor as "Public Data"; the previous marker layout made nxstyle treat data entries as function bodies - logo_data.c/.h: add proper file header comment blocks, section markers, put the array brace on its own line and wrap pixel data to 8 values per line - boot_screen.h/camera_module.h/ui_main.h: translate comments to English, fix long lines and add blank lines after comments
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Guard the SignBridge UI sources (ui_main/boot_screen/audio_beep/ camera_module/fonts/logo) and the corresponding code in lvgldemo.c with CONFIG_EXAMPLES_LVGLDEMO_SIGNBRIDGE, so the default LVGL demo builds unchanged on targets without the ESP32-P4 camera stack.
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Summary
SignBridge UI for the ESP32-P4-Function-EV-Board demo (pairs with open-vela/nuttx#364).
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Signed-off-by: IsXiaoXiaoZhou zhouyuxiang.is@example.com