main.cpp

#include <Arduino.h>
#include <WiFi.h>
#include "esp_wifi.h"
#include "esp_camera.h"
#include "Arduino.h"
#include "FS.h"               // SD Card ESP32
#include "SD_MMC.h"           // SD Card ESP32
#include "soc/soc.h"          // Disable brownour problems
#include "soc/rtc_cntl_reg.h" // Disable brownour problems
#include "driver/rtc_io.h"
#include <EEPROM.h> // read and write from flash memory
// define the number of bytes you want to access
#define EEPROM_SIZE 1

#include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <AsyncElegantOTA.h>

const char *ssid = "JioFi2_Hetadata";
const char *password = "hetadatain@123";
String serverName = "166.62.91.152";
//String serverName = "example.com";

String serverPath = "/logger_cam/upload.php";
const int serverPort = 80;

void sendMsgSd();
String sendPhoto();
WiFiClient client;
AsyncWebServer server(80);


#define uS_TO_S_FACTOR 1000000  /* Conversion factor for micro seconds to seconds */
#define TIME_TO_SLEEP  1920       /* Time ESP32 will go to sleep (in seconds) */

RTC_DATA_ATTR int bootCount = 0;

// Pin definition for CAMERA_MODEL_AI_THINKER
#define PWDN_GPIO_NUM 32
#define RESET_GPIO_NUM -1
#define XCLK_GPIO_NUM 0
#define SIOD_GPIO_NUM 26
#define SIOC_GPIO_NUM 27
#define Y9_GPIO_NUM 35
#define Y8_GPIO_NUM 34
#define Y7_GPIO_NUM 39
#define Y6_GPIO_NUM 36
#define Y5_GPIO_NUM 21
#define Y4_GPIO_NUM 19
#define Y3_GPIO_NUM 18
#define Y2_GPIO_NUM 5
#define VSYNC_GPIO_NUM 25
#define HREF_GPIO_NUM 23
#define PCLK_GPIO_NUM 22

int pictureNumber = 0;

void setup()
{
  pinMode(33, OUTPUT);
  digitalWrite(33, HIGH);
  WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
  Serial.begin(115200);
  Serial.setDebugOutput(true);
  esp_wifi_start();
  WiFi.mode(WIFI_STA);
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);

  //Increment boot number and print it every reboot
  ++bootCount;
  Serial.println("Boot number: " + String(bootCount));

/*
  First we configure the wake up source
  We set our ESP32 to wake up every 3 hours
  */
  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
  Serial.println("Setup ESP32 to sleep for every " + String(TIME_TO_SLEEP) +
  " Seconds (almost 30 minutes)");


  while ((WiFi.status() != WL_CONNECTED))
  {
    Serial.print(".");
    delay(50);
  }
  Serial.println();
  Serial.print("ESP32-CAM IP Address: ");
  Serial.println(WiFi.localIP());

  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
    request->send(200, "text/plain", "Hi! I am ESP32.");
  });

  AsyncElegantOTA.begin(&server);    // Start ElegantOTA
  server.begin();
  Serial.println("HTTP server started");

  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;

  if (psramFound())
  {
    config.frame_size = FRAMESIZE_UXGA; // FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA
    config.jpeg_quality = 12;
    config.fb_count = 2;
  }
  else
  {
    config.frame_size = FRAMESIZE_SVGA;
    config.jpeg_quality = 12;
    config.fb_count = 1;
  }

  // Init Camera
  esp_err_t err = esp_camera_init(&config);
  if (err != ESP_OK)
  {
    Serial.printf("Camera init failed with error 0x%x", err);
    ESP.restart();
  }

  sendPhoto();

}

void loop()
{
  AsyncElegantOTA.loop();
}

String sendPhoto()
{
  String getAll;
  String getBody;
  pinMode(4, OUTPUT);
  digitalWrite(4, HIGH);
  rtc_gpio_hold_dis(GPIO_NUM_4);
  camera_fb_t *fb = NULL;
  fb = esp_camera_fb_get();
  if (!fb)
  {
    Serial.println("Camera capture failed");
    ESP.restart();
  }
  pinMode(4, OUTPUT);
  digitalWrite(4, LOW);
  Serial.println("Connecting to server: " + serverName);

  if (client.connect(serverName.c_str(), serverPort))
  {
    Serial.println("Connection successful!");
    String head = "--SpyderEye-Cam\r\nContent-Disposition: form-data; name=\"imageFile\"; filename=\"spyderEYE-cam.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n";
    String tail = "\r\n--SpyderEye-Cam--\r\n";

    uint32_t imageLen = fb->len;
    uint32_t extraLen = head.length() + tail.length();
    ulong totalLen = imageLen + extraLen;

    client.println("POST " + serverPath + " HTTP/1.1");
    client.println("Host: " + serverName);
    client.println("Content-Length: " + String(totalLen));
    client.println("Content-Type: multipart/form-data; boundary=SpyderEye-Cam");
    client.println();
    Serial.println("request sent");
    client.print(head);

    uint8_t *fbBuf = fb->buf;
    size_t fbLen = fb->len;
    for (size_t n = 0; n < fbLen; n = n + 1024)
    {
      if (n + 1024 < fbLen)
      {
        client.write(fbBuf, 1024);
        fbBuf += 1024;
      }
      else if (fbLen % 1024 > 0)
      {
        size_t remainder = fbLen % 1024;
        client.write(fbBuf, remainder);
      }
    }
    client.print(tail);

    esp_camera_fb_return(fb);

    int timoutTimer = 15000;
    long startTimer = millis();
    boolean state = false;

    while ((startTimer + timoutTimer) > millis())
    {
      Serial.print(".");
      delay(100);
      while (client.available())
      {
        char c = client.read();
        if (c == '\n')
        {
          if (getAll.length() == 0)
          {
            state = true;
          }
          getAll = "";
        }
        else if (c != '\r')
        {
          getAll += String(c);
        }
        if (state == true)
        {
          getBody += String(c);
        }
        startTimer = millis();
      }
      if (getBody.length() > 0)
      {
        break;
      }
    }
    Serial.println();
    client.stop();
    Serial.println(getBody);
  }
  else
  {
    getBody = "Connection to " + serverName + " failed.";
    Serial.println(getBody);
    Serial.println("Starting SD Card");

    delay(500);
    if (!SD_MMC.begin())
    {
      Serial.println("SD Card Mount Failed");
      //return;
    }

    uint8_t cardType = SD_MMC.cardType();
    if (cardType == CARD_NONE)
    {
      Serial.println("No SD Card attached");
    }

    camera_fb_t *fb = NULL;

    // Take Picture with Camera
    fb = esp_camera_fb_get();
    
    
 
    if (!fb)
    {
      Serial.println("Camera capture failed");
    }
    // initialize EEPROM with predefined size
    EEPROM.begin(EEPROM_SIZE);
    pictureNumber = EEPROM.read(0) + 1;

    // Path where new picture will be saved in SD Card
    String path = "/picture" + String(pictureNumber) + ".jpg";

    fs::FS &fs = SD_MMC;
    Serial.printf("Picture file name: %s\n", path.c_str());

    File file = fs.open(path.c_str(), FILE_WRITE);
    if (!file)
    {
      Serial.println("Failed to open file in writing mode");
    }
    else
    {
      file.write(fb->buf, fb->len); // payload (image), payload length
      Serial.printf("Saved file to path: %s\n", path.c_str());
      EEPROM.write(0, pictureNumber);
      EEPROM.commit();
    }
    file.close();
    esp_camera_fb_return(fb);
  }
  // Turns off the ESP32-CAM white on-board LED (flash) connected to GPIO 4
if(fb)
    {
    Serial.println("Going to sleep now");
    delay(1000);
    Serial.flush(); 
    esp_deep_sleep_start();
    Serial.println("This will never be printed");
    }
 // rtc_gpio_hold_en(GPIO_NUM_4);

 // Serial.println("Going to sleep now");
 // Serial.println("Abe Saaaaale....");
 // delay(1000);
 // pinMode(13, INPUT);
/*
  if (digitalRead(13) == LOW)
  { esp_wifi_stop(); Serial.end();
    delay(3000);
    esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, 1);
    esp_deep_sleep_start();
  }
  else
  {
    ESP.restart();
  }
  Serial.println("This will never be printed");*/
  return getBody;
} 

void sendMsgSd(){
for(uint16_t i = 0;i < EEPROM.read(0); i++){
        String path = "/picture" + String(i) + ".jpg";

    fs::FS &fs = SD_MMC;
    Serial.printf("Picture file name: %s\n", path.c_str());

    File file = fs.open(path.c_str(), FILE_READ);
    if (!file)
    {
      Serial.println("Failed to open file in read mode");
    }
    else
    {
    if (client.connect(serverName.c_str(), serverPort))
  {
    Serial.println("Connection successful!");
    String head = "--SpyderEye-Cam\r\nContent-Disposition: form-data; name=\"imageFile\"; filename=\"spyderEYE-test-cam.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n";
    String tail = "\r\n--SpyderEye-Cam--\r\n";

    uint32_t imageLen = file.size();
    uint32_t extraLen = head.length() + tail.length();
    ulong totalLen = imageLen + extraLen;

    client.println("POST " + serverPath + " HTTP/1.1");
    client.println("Host: " + serverName);
    client.println("Content-Length: " + String(totalLen));
    client.println("Content-Type: multipart/form-data; boundary=SpyderEye-Cam");
    client.println();
    Serial.println("request sent");
    client.print(head);
    client.print(file);
    client.print(tail);
    }
    file.close();
  }
  
}}