【ESP32-CAM】使用aduino-IDE的环境配置和烧录相关问题

一、烧录

硬件： 安信可淘宝店买的esp32cam 和 USB to TTL

软件： aduino IDE

IDE配置：

参考链接：

(1条消息) ESP32-CAM烧录教程（适用于多种开发板）_xiaofang113的博客-CSDN博客_esp32cam怎么烧录

例程代码：

详细参考位博主的帖子，代码我也是用他的

(1条消息) esp32cam通过无线局域网进行图像传输_熬夜耗子在线敲代码的博客-CSDN博客_esp32摄像头数据传输

#include "esp_camera.h"
#include 

//
// WARNING!!! Make sure that you have either selected ESP32 Wrover Module,
//            or another board which has PSRAM enabled
//

// Select camera model
//#define CAMERA_MODEL_WROVER_KIT
//#define CAMERA_MODEL_ESP_EYE
//#define CAMERA_MODEL_M5STACK_PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE
#define CAMERA_MODEL_AI_THINKER

#include"camera_pins.h"

const char* ssid = "WIFIname";//需要修改的地方，填入WIFI名
const char* password = "WIFIpassword";//需要修改的地方，填入WIFI密码

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.pixel_format = PIXFORMAT_JPEG;
  //init with high specs to pre-allocate larger buffers
  if(psramFound()){
    config.frame_size = FRAMESIZE_UXGA;
    config.jpeg_quality = 10;
    config.fb_count = 2;
  } else {
    config.frame_size = FRAMESIZE_SVGA;
    config.jpeg_quality = 12;
    config.fb_count = 1;
  }

#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 blightness just a bit
    s->set_saturation(s, -2);//lower the saturation
  }
  //drop down frame size for higher initial frame rate
  s->set_framesize(s, FRAMESIZE_QVGA);

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

  WiFi.begin(ssid, password);

  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() {
  // put your main code here, to run repeatedly:
  delay(10000);
}

二、报错

Warning: Could not auto-detect Flash size (FlashID=0xffffff, SizeID=0xff), defaulting to 4MB Compressed 8192 bytes to 47...

报错原因： esp32cam 与 USB to TTL接错线

A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header 

报错原因： 未知

IO0接地仍然报错，很多帖子说 Connecting…字样时候按住boot按钮即可，等到出现烧录的时候就可以松开 ，但我的板子上没有boot按钮，也没有Flash键，按RST没用

解决方法： 用USB to TTL的5V对CAM的5V供电解决报错

camera_pins.h: No such file or directory

报错原因： windows系统的一些默认文件路径被我修改过，aduino找不到头文件

解决方法： 直接在windows系统搜索中找camera_pins.h，然后直接把camera_pins.h文件夹里的全部文件复制到我的ESP32CAM项目aduino文件夹里

一些比较详细的解决报错帖子

Arduino-IDE配置ESP32-CAM开发环境踩过的那些坑 - 灰信网（软件开发博客聚合） (freesion.com)

(1条消息) ESP32-CAM使用历（教）程及报错解决② 2021 08 25_m0_51503599的博客-CSDN博客

三、其他

1.esp32cam没有电源灯，LED1不是电源灯上电不会亮

2.ESP32-CAM 的IO0接口接地即为烧录模式，不接地悬空即为运作模式 ，烧录结束记得断开接地

3.在没插入SD卡情况下也可运行

4.例程注意修改WIFI名称和密码，网页和硬件要在同一WIFI下