add more demos

.gitignore

@@ -56,3 +56,9 @@ build/
 managed_components/
 dependencies.lock
 
+sdkconfig
+sdkconfig.old
+sdkconfig.*.vscode
+
+main/images/
+

README.md

@@ -21,6 +21,12 @@ popd
 pushd apps/calculator
 esptool.py --chip esp32s3  --baud 921600 --before default_reset --after hard_reset write_flash 0x7A0000 build/calculator.bin
 popd
+pushd apps/synth_piano
+esptool.py --chip esp32s3  --baud 921600 --before default_reset --after hard_reset write_flash 0xA60000 build/synth_piano.bin
+popd
+pushd apps/game_of_life
+esptool.py --chip esp32s3  --baud 921600 --before default_reset --after hard_reset write_flash 0xD20000 build/game_of_life.bin
+popd
 ```
 
 ## Build

apps/calculator/sdkconfig.defaults

@@ -0,0 +1,4 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"

apps/calculator/sdkconfig.defaults.esp-box

@@ -0,0 +1,4 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"

apps/calculator/sdkconfig.defaults.esp-box-3

@@ -0,0 +1,4 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"

apps/calculator/sdkconfig.defaults.m5stack_core_s3

@@ -0,0 +1,6 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+CONFIG_PARTITION_TABLE_CUSTOM=y

apps/game_of_life/CMakeLists.txt

@@ -0,0 +1,6 @@
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.16)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(game_of_life)

apps/game_of_life/main/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "game_of_life.c"
+                    INCLUDE_DIRS "."
+                    REQUIRES app_update)

apps/game_of_life/main/game_of_life.c

@@ -0,0 +1,164 @@
+#include <stdio.h>
+// Conway's Game of Life for ESP32 using LVGL
+#include <stdlib.h>
+#include <stdbool.h>
+#include <time.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_log.h"
+#include "esp_system.h"
+#include "lvgl.h"
+#include "bsp/esp-bsp.h"
+#include "esp_ota_ops.h"
+
+#define TAG "GameOfLife"
+#define GRID_SIZE 20
+#define CELL_SIZE 10
+#define CANVAS_WIDTH  (GRID_SIZE * CELL_SIZE)
+#define CANVAS_HEIGHT (GRID_SIZE * CELL_SIZE)
+
+static bool grid[GRID_SIZE][GRID_SIZE];
+static bool temp_grid[GRID_SIZE][GRID_SIZE];
+static lv_obj_t *canvas;
+lv_layer_t layer;
+
+static void draw_grid();
+static void update_grid();
+
+static void randomize_grid() {
+    for (int row = 0; row < GRID_SIZE; ++row) {
+        for (int col = 0; col < GRID_SIZE; ++col) {
+            grid[row][col] = rand() % 2;
+        }
+    }
+}
+
+static void reset_btn_event_cb(lv_event_t *e) {
+    lv_event_code_t code = lv_event_get_code(e);
+    if (code == LV_EVENT_CLICKED) {
+        randomize_grid();
+    }
+}
+
+static void draw_grid() {
+    bsp_display_lock(0);
+
+    lv_draw_rect_dsc_t rect_dsc;
+    lv_draw_rect_dsc_init(&rect_dsc);
+
+    for (int row = 0; row < GRID_SIZE; ++row) {
+        for (int col = 0; col < GRID_SIZE; ++col) {
+            lv_area_t area;
+            area.x1 = col * CELL_SIZE;
+            area.y1 = row * CELL_SIZE;
+            area.x2 = area.x1 + CELL_SIZE - 1;
+            area.y2 = area.y1 + CELL_SIZE - 1;
+            rect_dsc.bg_color = grid[row][col] ? lv_palette_main(LV_PALETTE_BLUE) : lv_color_white();
+            lv_draw_rect(&layer, &rect_dsc, &area);
+        }
+    }
+
+    lv_canvas_finish_layer(canvas, &layer);
+    lv_obj_invalidate(canvas);
+    bsp_display_unlock();
+}
+
+static void update_grid() {
+    for (int row = 0; row < GRID_SIZE; ++row) {
+        for (int col = 0; col < GRID_SIZE; ++col) {
+            int live_neighbors = 0;
+            for (int i = -1; i <= 1; ++i) {
+                for (int j = -1; j <= 1; ++j) {
+                    if (i == 0 && j == 0) continue;
+                    int r = row + i;
+                    int c = col + j;
+                    if (r >= 0 && r < GRID_SIZE && c >= 0 && c < GRID_SIZE) {
+                        live_neighbors += grid[r][c];
+                    }
+                }
+            }
+
+            if (grid[row][col]) {
+                temp_grid[row][col] = live_neighbors == 2 || live_neighbors == 3;
+            } else {
+                temp_grid[row][col] = live_neighbors == 3;
+            }
+        }
+    }
+
+    for (int row = 0; row < GRID_SIZE; ++row) {
+        for (int col = 0; col < GRID_SIZE; ++col) {
+            grid[row][col] = temp_grid[row][col];
+        }
+    }
+}
+
+static void life_task(void *param) {
+    while (1) {
+        vTaskDelay(pdMS_TO_TICKS(100));
+        update_grid();
+        draw_grid();
+    }
+}
+
+void reset_to_factory_app() {
+    // Get the partition structure for the factory partition
+    const esp_partition_t *factory_partition = esp_partition_find_first(ESP_PARTITION_TYPE_APP, ESP_PARTITION_SUBTYPE_APP_FACTORY, NULL);
+    if (factory_partition != NULL) {
+        if (esp_ota_set_boot_partition(factory_partition) == ESP_OK) {
+            printf("Set boot partition to factory, restarting now.\n");
+        } else {
+            printf("Failed to set boot partition to factory.\n");
+        }
+    } else {
+        printf("Factory partition not found.\n");
+    }
+
+    fflush(stdout);
+}
+
+void app_main(void) {
+    // Reset to factory app for the next boot.
+    // It should return to graphical bootloader.
+    reset_to_factory_app();
+
+    // Initialize the BSP
+    bsp_i2c_init();
+    bsp_display_start();
+    lv_init();
+    srand(time(NULL));
+
+    bsp_display_lock(0);
+
+    LV_DRAW_BUF_DEFINE(draw_buf, CANVAS_WIDTH, CANVAS_HEIGHT, LV_COLOR_FORMAT_RGB565);
+
+    canvas = lv_canvas_create(lv_scr_act());
+    lv_canvas_set_draw_buf(canvas, &draw_buf);
+    lv_canvas_fill_bg(canvas, lv_color_hex3(0xccc), LV_OPA_COVER);
+    lv_obj_center(canvas);
+
+    lv_canvas_init_layer(canvas, &layer);
+
+    // Create a reset button
+    lv_obj_t *reset_btn = lv_btn_create(lv_scr_act());
+    lv_obj_t *label = lv_label_create(reset_btn);
+    lv_label_set_text(label, "Reset");
+    lv_obj_align(reset_btn, LV_ALIGN_BOTTOM_RIGHT, 0, -10);
+    lv_obj_add_event_cb(reset_btn, reset_btn_event_cb, LV_EVENT_CLICKED, NULL);
+
+    bsp_display_backlight_on();
+    bsp_display_unlock();
+
+    // Initialize grid
+    randomize_grid();
+    printf("Grid initialized\n");
+    draw_grid();
+    printf("Grid drawn\n");
+
+    // Create the life task
+    xTaskCreate(life_task, "life_task", 32768, NULL, 5, NULL);
+
+    while (1) {
+        vTaskDelay(pdMS_TO_TICKS(1000));
+    }
+}

apps/game_of_life/main/idf_component.yml

@@ -0,0 +1,11 @@
+## IDF Component Manager Manifest File
+dependencies:
+  espressif/esp-box: "^3.1.0"
+  #espressif/esp-box-3: "^1.2.0"
+  # Workaround for i2c: CONFLICT! driver_ng is not allowed to be used with this old driver
+  esp_codec_dev:
+    public: true
+    version: "==1.1.0"
+  ## Required IDF version
+  idf:
+    version: ">=5.0.0"

apps/game_of_life/sdkconfig.defaults

@@ -0,0 +1,4 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"

apps/game_of_life/sdkconfig.defaults.esp-box

@@ -0,0 +1,4 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"

apps/game_of_life/sdkconfig.defaults.esp-box-3

@@ -0,0 +1,4 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"

apps/game_of_life/sdkconfig.defaults.m5stack_core_s3

@@ -0,0 +1,6 @@
+# This file was generated using idf.py save-defconfig. It can be edited manually.
+# Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Minimal Configuration
+#
+CONFIG_IDF_TARGET="esp32s3"
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+CONFIG_PARTITION_TABLE_CUSTOM=y

apps/synth_piano/CMakeLists.txt

@@ -0,0 +1,6 @@
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.16)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(synth_piano)

apps/synth_piano/main/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "synth_piano.c"
+                    INCLUDE_DIRS "."
+                    REQUIRES app_update)

apps/synth_piano/main/idf_component.yml

@@ -0,0 +1,11 @@
+## IDF Component Manager Manifest File
+dependencies:
+  espressif/esp-box: "^3.1.0"
+  #espressif/esp-box-3: "^1.2.0"
+  # Workaround for i2c: CONFLICT! driver_ng is not allowed to be used with this old driver
+  esp_codec_dev:
+    public: true
+    version: "==1.1.0"
+  ## Required IDF version
+  idf:
+    version: ">=5.0.0"