Add: Add PlatformIO demo

Author: IcingTomato

examples/PlatformIO/Camera/.gitignore

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+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+.vscode

examples/PlatformIO/Camera/include/README

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+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

examples/PlatformIO/Camera/lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

examples/PlatformIO/Camera/platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32-s3-devkitc-1]
+platform = espressif32@ ^5.3.0
+board = esp32-s3-devkitc-1
+platform_packages =
+    platformio/tool-esptoolpy@^1.40400.0
+framework = arduino
+board_build.f_cpu = 240000000L
+board_build.f_flash = 80000000L
+board_build.flash_mode = qio
+board_build.flash_size = 16MB
+board_build.partitions = ./src/partitions.csv
+upload_speed = 921600
+; upload_protocol = espota
+upload_protocol = esptool
+monitor_speed = 115200
+lib_deps = m5stack/M5Unified@^0.1.6
+build_flags =
+    -DESP32S3
+    -DBOARD_HAS_PSRAM
+    -mfix-esp32-psram-cache-issue
+    -DCORE_DEBUG_LEVEL=5
+    -DARDUINO_USB_CDC_ON_BOOT=1
+	-DARDUINO_USB_MODE=1
+

examples/PlatformIO/Camera/src/Camera.cpp

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+#include "esp_camera.h"
+#include <WiFi.h>
+#include <M5Unified.h>
+#include "CoreS3_GC0308.hpp"
+
+#define CWS_ENABLE_FACE
+
+#define PWDN_GPIO_NUM -1
+#define RESET_GPIO_NUM -1
+#define XCLK_GPIO_NUM -1
+#define SIOD_GPIO_NUM -1
+#define SIOC_GPIO_NUM -1
+
+#define Y2_GPIO_NUM 39
+#define Y3_GPIO_NUM 40
+#define Y4_GPIO_NUM 41
+#define Y5_GPIO_NUM 42
+#define Y6_GPIO_NUM 15
+#define Y7_GPIO_NUM 16
+#define Y8_GPIO_NUM 48
+#define Y9_GPIO_NUM 47
+
+#define VSYNC_GPIO_NUM 46
+#define HREF_GPIO_NUM 38
+#define PCLK_GPIO_NUM 45
+
+// ===========================
+// Enter your WiFi credentials
+// ===========================
+const char* ssid = "@PHICOMM_2E5950";
+const char* password = "myfamily";
+
+void startCameraServer();
+
+void setup() {
+    M5.begin();
+    M5.Log.setEnableColor(m5::log_target_serial, false);
+    Serial.begin(115200);
+    Serial.println();
+
+    camera_config_t config;
+    config.ledc_channel = LEDC_CHANNEL_0;
+    config.ledc_timer = LEDC_TIMER_0;
+    config.pin_d0 = Y2_GPIO_NUM;
+    config.pin_d1 = Y3_GPIO_NUM;
+    config.pin_d2 = Y4_GPIO_NUM;
+    config.pin_d3 = Y5_GPIO_NUM;
+    config.pin_d4 = Y6_GPIO_NUM;
+    config.pin_d5 = Y7_GPIO_NUM;
+    config.pin_d6 = Y8_GPIO_NUM;
+    config.pin_d7 = Y9_GPIO_NUM;
+    config.pin_xclk = XCLK_GPIO_NUM;
+    config.pin_pclk = PCLK_GPIO_NUM;
+    config.pin_vsync = VSYNC_GPIO_NUM;
+    config.pin_href = HREF_GPIO_NUM;
+    config.pin_sccb_sda = SIOD_GPIO_NUM;
+    config.pin_sccb_scl = SIOC_GPIO_NUM;
+    config.pin_pwdn = PWDN_GPIO_NUM;
+    config.pin_reset = RESET_GPIO_NUM;
+    config.xclk_freq_hz = 20000000;
+    config.frame_size = FRAMESIZE_QVGA;
+    config.pixel_format = PIXFORMAT_RGB565;
+    // config.pixel_format = PIXFORMAT_YUV422;
+    config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
+    config.fb_location = CAMERA_FB_IN_PSRAM;
+    config.jpeg_quality = 0;
+    config.fb_count = 2;
+    config.sccb_i2c_port = M5.In_I2C.getPort();
+    
+    
+    // camera init
+    esp_err_t err = esp_camera_init(&config);
+    if (err != ESP_OK) {
+        Serial.printf("Camera init failed with error 0x%x", err);
+        return;
+    }
+    if(!cam::GC0308::complementDriver())
+    {
+        M5_LOGE("Failed to complement GC0308");
+    }
+
+    WiFi.begin(ssid, password);
+    WiFi.setSleep(false);
+
+    while (WiFi.status() != WL_CONNECTED) {
+        delay(500);
+        Serial.print(".");
+    }
+    Serial.println("");
+    Serial.println("WiFi connected");
+
+    startCameraServer();
+
+    Serial.print("Camera Ready! Use 'http://");
+    Serial.print(WiFi.localIP());
+    Serial.println("' to connect");
+}
+
+void loop() {
+    // Do nothing. Everything is done in another task by the web server
+    delay(1000);
+}