合宙ESP32S3 CameraWebServe测试，我们需要一个OV2640的摄像头模组用来采集图像传输给ESP32的，这里使用的OV2640是之前安信可十周年的白嫖的。现在直接插到合宙ESP32S3开发板，简直完美。还是白嫖好！！！
合宙ESP32S3核心板是基于乐鑫ESP32-S3进行设计的一款核心板，尺寸仅有21mm*51mm，板边采用邮票孔设计，方便开发者在不同场景下的使用。核心板板载2.4G天线，支持wifi和蓝牙。核心板内置8MB psram，16MB flash豪华配置。板载ch343p USB转串口芯片，方便下载烧录；同时还设计了模拟开关电路，可一键切换到S3内置的USB，进行USB功能的开发调试。核心板支持UART、GPIO、SPI、I2C、ADC、PWM，SDIO，Camera等接口，可根据实际需要连接外设进行调试。
ESP32S3采用Xtensa® 32 位 LX7 双核处理器，五级流水线架构，主频高达240M。内置512K SRAM，本次发布型号和封8MB psram。
4 × SPI
1 × LCD 接口（8 位 ~16 位并行 RGB, I8080, MOTO6800）, 支持 RGB565, YUV422, YUV420, YUV411 之间互相转换
1 × DVP 8 位 ~16 位摄像头接口
3 × UART
2 × I2C
2 × I2S
1 × RMT (TX/RX)
1 × 脉冲计数器 – LED PWM 控制器，多达 8 个通道
1 × 全速 USB OTG
1 × USB Serial/JTAG 控制器
2 × MCPWM
1 × SDIO 主机接口，具有 2 个卡槽
通用 DMA 控制器 (简称 GDMA)，5 个接收通 道和 5 个发送通道
1 × TWAI® 控制器，兼容 ISO 11898-1（CAN 规范 2.0）
2 × 12 位 SAR ADC，多达 20 个通道
ArduinoIDE 开发esp32s3 参考流程
https://blog.csdn.net/chilian12321/article/details/115979076
准备好最主要的控制器模块之后我们需要一个OV2640的摄像头模组用来采集图像传输给ESP32的，这里使用的OV2640是之前安信可十周年的白嫖的。现在直接插到合宙ESP32S3开发板，简直完美。
#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
// ** Espressif Internal Boards **
//#define CAMERA_MODEL_ESP32_CAM_BOARD
//#define CAMERA_MODEL_ESP32S2_CAM_BOARD
//#define CAMERA_MODEL_ESP32S3_CAM_LCD
#include "camera_pins.h"
// ===========================
// Enter your WiFi credentials 设置热点密码，唯一需要改动的部分
// ===========================
const char* ssid = "DAP";
const char* password = "delehub2023";
void startCameraServer();
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_sscb_sda = SIOD_GPIO_NUM;
config.pin_sscb_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
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);
}
有点问题。。。
代码参考地址：https://gitee.com/ryzen123/arduino-esp32-CameraWebServer