camera.ino

#include "esp_camera.h"
#include <WiFi.h>

//
// WARNING!!! PSRAM IC required for UXGA resolution and high JPEG quality
//            Ensure ESP32 Wrover Module or other board with PSRAM is selected
//            Partial images will be transmitted if image exceeds buffer size
//
//            You must select partition scheme from the board menu that has at least 3MB APP space.
//            Face Recognition is DISABLED for ESP32 and ESP32-S2, because it takes up from 15
//            seconds to process single frame. Face Detection is ENABLED if PSRAM is enabled as well

// ===================
// Select camera model
// ===================
// #define CAMERA_MODEL_WROVER_KIT // Has PSRAM
// #define CAMERA_MODEL_ESP_EYE // Has PSRAM
// #define CAMERA_MODEL_ESP32S3_EYE // Has PSRAM
// #define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM
// #define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM
// #define CAMERA_MODEL_M5STACK_WIDE // Has PSRAM
// #define CAMERA_MODEL_M5STACK_ESP32CAM // No PSRAM
// #define CAMERA_MODEL_M5STACK_UNITCAM // No PSRAM
#define CAMERA_MODEL_AI_THINKER // Has PSRAM
// #define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
// #define CAMERA_MODEL_XIAO_ESP32S3 // Has PSRAM
//  ** Espressif Internal Boards **
// #define CAMERA_MODEL_ESP32_CAM_BOARD
// #define CAMERA_MODEL_ESP32S2_CAM_BOARD
// #define CAMERA_MODEL_ESP32S3_CAM_LCD
// #define CAMERA_MODEL_DFRobot_FireBeetle2_ESP32S3 // Has PSRAM
// #define CAMERA_MODEL_DFRobot_Romeo_ESP32S3 // Has PSRAM
#include "camera_pins.h"

// ===========================
// Enter your WiFi credentials
// ===========================
const char *ssid = "wifi_name";
const char *password = "wifi_password";

void startCameraServer();
void setupLedFlash(int pin);

void setup()
{
	Serial.begin(115200);
	Serial.setDebugOutput(true);
	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_UXGA;
	config.pixel_format = PIXFORMAT_JPEG; // for streaming
	// config.pixel_format = PIXFORMAT_RGB565; // for face detection/recognition
	config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
	config.fb_location = CAMERA_FB_IN_PSRAM;
	config.jpeg_quality = 12;
	config.fb_count = 1;

	// if PSRAM IC present, init with UXGA resolution and higher JPEG quality
	//                      for larger pre-allocated frame buffer.
	if (config.pixel_format == PIXFORMAT_JPEG)
	{
		if (psramFound())
		{
			config.jpeg_quality = 10;
			config.fb_count = 2;
			config.grab_mode = CAMERA_GRAB_LATEST;
		}
		else
		{
			// Limit the frame size when PSRAM is not available
			config.frame_size = FRAMESIZE_SVGA;
			config.fb_location = CAMERA_FB_IN_DRAM;
		}
	}
	else
	{
		// Best option for face detection/recognition
		config.frame_size = FRAMESIZE_240X240;
#if CONFIG_IDF_TARGET_ESP32S3
		config.fb_count = 2;
#endif
	}

#if defined(CAMERA_MODEL_ESP_EYE)
	pinMode(13, INPUT_PULLUP);
	pinMode(14, INPUT_PULLUP);
#endif

	// 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;
	}

	sensor_t *s = esp_camera_sensor_get();
	// initial sensors are flipped vertically and colors are a bit saturated
	if (s->id.PID == OV3660_PID)
	{
		s->set_vflip(s, 1);		  // flip it back
		s->set_brightness(s, 1);  // up the brightness just a bit
		s->set_saturation(s, -2); // lower the saturation
	}
	// drop down frame size for higher initial frame rate
	if (config.pixel_format == PIXFORMAT_JPEG)
	{
		s->set_framesize(s, FRAMESIZE_QVGA);
	}

#if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM)
	s->set_vflip(s, 1);
	s->set_hmirror(s, 1);
#endif

#if defined(CAMERA_MODEL_ESP32S3_EYE)
	s->set_vflip(s, 1);
#endif

// Setup LED FLash if LED pin is defined in camera_pins.h
#if defined(LED_GPIO_NUM)
	setupLedFlash(LED_GPIO_NUM);
#endif

	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(10000);
}