example: Update lv_demos to use package manager

examples/lv_demos/CMakeLists.txt

@@ -4,8 +4,9 @@ cmake_minimum_required(VERSION 3.5)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 
-set(EXTRA_COMPONENT_DIRS    ../../components)
-
 add_compile_options(-fdiagnostics-color=always)
 
-project(lv_demos)
+# The following line can be removed after LVGL update to v8.3.5.
+add_compile_options(-Wno-format)
+
+project(lv_demos)

examples/lv_demos/main/CMakeLists.txt

@@ -1,3 +1,3 @@
 idf_component_register(
     SRCS
-        "lv_demos.c")
+        "lv_demos.c")

examples/lv_demos/main/idf_component.yml

@@ -0,0 +1,3 @@
+## IDF Component Manager Manifest File
+dependencies:
+  espressif/esp-box: "2.*"

examples/lv_demos/main/lv_demos.c

@@ -1,38 +1,23 @@
-/**
- * @file lv_demos.c
- * @brief Evaluate demos provided by LVGL
- * @version 0.1
- * @date 2021-10-19
- * 
- * @copyright Copyright 2021 Espressif Systems (Shanghai) Co. Ltd.
+/*
+ * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
  *
- *      Licensed under the Apache License, Version 2.0 (the "License");
- *      you may not use this file except in compliance with the License.
- *      You may obtain a copy of the License at
- *
- *               http://www.apache.org/licenses/LICENSE-2.0
- *
- *      Unless required by applicable law or agreed to in writing, software
- *      distributed under the License is distributed on an "AS IS" BASIS,
- *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *      See the License for the specific language governing permissions and
- *      limitations under the License.
+ * SPDX-License-Identifier: CC0-1.0
  */
 
-#include "bsp_board.h"
-#include "bsp_lcd.h"
-#include "freertos/FreeRTOS.h"
-#include "freertos/task.h"
-#include "lv_demos.h"
-#include "lv_port.h"
-#include "lvgl.h"
+#include "bsp/esp-bsp.h"
+
+#include "demos/lv_demos.h"
 
 void app_main(void)
 {
-    ESP_ERROR_CHECK(bsp_board_init());
+    /* Initialize I2C (for touch and audio) */
+    bsp_i2c_init();
 
-    ESP_ERROR_CHECK(lv_port_init());
-    bsp_lcd_set_backlight(true);
+    /* Initialize display and LVGL */
+    bsp_display_start();
+
+    /* Set display brightness to 100% */
+    bsp_display_backlight_on();
 
     /**
      * @brief Demos provided by LVGL.
@@ -40,12 +25,23 @@ void app_main(void)
      * @note Only enable one demo every time.
      * 
      */
+#if LV_USE_DEMO_WIDGETS
     lv_demo_widgets();      /* A widgets example. This is what you get out of the box */
-    // lv_demo_music();        /* A modern, smartphone-like music player demo. */
-    // lv_demo_stress();       /* A stress test for LVGL. */
-    // lv_demo_benchmark();    /* A demo to measure the performance of LVGL or to compare different settings. */
+#endif
 
-    do {
-        lv_task_handler();
-    } while (vTaskDelay(1), true);
-}
+#if LV_USE_DEMO_KEYPAD_AND_ENCODER
+    lv_demo_keypad_encoder();   /* Demonstrate the usage of encoder and keyboard */
+#endif
+
+#if LV_USE_DEMO_BENCHMARK
+    lv_demo_benchmark();    /* A demo to measure the performance of LVGL or to compare different settings. */
+#endif
+
+#if LV_USE_DEMO_STRESS
+    lv_demo_stress();       /* A stress test for LVGL. */
+#endif
+
+#if LV_USE_DEMO_MUSIC
+    lv_demo_music();        /* A modern, smartphone-like music player demo. */
+#endif
+}

examples/lv_demos/sdkconfig.defaults

@@ -1,18 +1,19 @@
 CONFIG_IDF_TARGET="esp32s3"
-CONFIG_ESPTOOLPY_FLASHMODE_QIO=y
-CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
-# CONFIG_ESPTOOLPY_FLASHSIZE_DETECT is not set
-CONFIG_ALL_DISABLE=y
-CONFIG_MODEL_IN_SDCARD=y
-# CONFIG_USE_WAKENET is not set
-# CONFIG_USE_MULTINET is not set
-CONFIG_LV_COLOR_16_SWAP=y
-CONFIG_LV_MEM_SIZE_KILOBYTES=48
-CONFIG_LV_FONT_MONTSERRAT_12=y
-CONFIG_LV_FONT_MONTSERRAT_16=y
-CONFIG_LV_USE_DEMO_WIDGETS=y
-CONFIG_ESP32S3_INSTRUCTION_CACHE_32KB=y
+
+CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG=y
+
+CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+
 CONFIG_ESP32S3_DATA_CACHE_64KB=y
 CONFIG_ESP32S3_DATA_CACHE_LINE_64B=y
-CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
-CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG=y
+CONFIG_ESP32S3_INSTRUCTION_CACHE_32KB=y
+
+CONFIG_ESPTOOLPY_FLASHMODE_QIO=y
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+
+CONFIG_LV_COLOR_16_SWAP=y
+CONFIG_LV_FONT_MONTSERRAT_12=y
+CONFIG_LV_FONT_MONTSERRAT_16=y
+CONFIG_LV_MEM_SIZE_KILOBYTES=48
+# Temporary disable demos, can turn on when LVGL at Espressif Component Registry update to 8.3.5
+# CONFIG_LV_USE_DEMO_WIDGETS=y