ESP32CAM.ino

// Viral Science www.viralsciencecreativity.com www.youtube.com/c/viralscience
// ESP32 Cam Motion Alert | Send Image to Telegram
#include "config.h"
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include "soc/soc.h"
#include "soc/rtc_cntl_reg.h"
#include "esp_camera.h"

// Enter your WiFi ssid and password
const char* ssid      = WIFI_SSID;
const char* password  = WIFI_PASSWORD;
String token          = TELEGRAM_TOKEN;
String chat_id        = TELEGRAM_CHAT_ID;

//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 gpioPIR = 13;   //PIR Motion Sensor

void setup()
{
  Serial.println("Motion detected!");
  WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0);

  Serial.begin(115200);
  delay(10);
  WiFi.mode(WIFI_STA);
  Serial.println("");
  Serial.print("Connecting to ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  long int StartTime = millis();

  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    if ((StartTime + 10000) < millis()) break;
  }

  Serial.println("");
  Serial.println("STAIP address: ");
  Serial.println(WiFi.localIP());
  Serial.println("");

  if (WiFi.status() != WL_CONNECTED) {
    Serial.println("Reset");

    ledcAttachPin(4, 3);
    ledcSetup(3, 5000, 8);
    ledcWrite(3, 10);
    delay(200);
    ledcWrite(3, 0);
    delay(200);
    ledcDetachPin(3);
    delay(1000);
    ESP.restart();
  }
  else
  {
    ledcAttachPin(4, 3);
    ledcSetup(3, 5000, 8);

    for (int i = 0; i < 5; i++) {
      ledcWrite(3, 10);
      delay(200);
      ledcWrite(3, 0);
      delay(200);
    }

    ledcDetachPin(3);
  }

  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_VGA;
    config.jpeg_quality = 10;  //0-63 lower number means higher quality
    config.fb_count = 2;
  }
  else
  {
    config.frame_size = FRAMESIZE_QQVGA;
    config.jpeg_quality = 12;  //0-63 lower number means higher quality
    config.fb_count = 1;
  }

  // camera init
  esp_err_t err = esp_camera_init(&config);

  if (err != ESP_OK)
  {
    Serial.printf("Camera init failed with error 0x%x", err);
    delay(1000);
    ESP.restart();
  }

  sensor_t * s = esp_camera_sensor_get();
  s->set_framesize(s, FRAMESIZE_XGA);
  alerts2Telegram(token, chat_id);

  esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, 1);

  Serial.println("Going to sleep now");
  esp_deep_sleep_start();
}

void loop()
{
}

String alerts2Telegram(String token, String chat_id)
{
  const char* myDomain = "api.telegram.org";
  String getAll = "", getBody = "";

  camera_fb_t * fb = NULL;
  fb = esp_camera_fb_get();

  if (!fb)
  {
    Serial.println("Camera capture failed");
    delay(1000);
    ESP.restart();

    return "Camera capture failed";
  }


  WiFiClientSecure client_tcp;

  if (client_tcp.connect(myDomain, 443))
  {
    Serial.println("Connected to " + String(myDomain));

    String head = "--Camera\r\nContent-Disposition: form-data; name=\"chat_id\"; \r\n\r\n" + chat_id + "\r\n--Camera\r\nContent-Disposition: form-data; name=\"photo\"; filename=\"esp32-cam.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n";
    String tail = "\r\n--Camera--\r\n";

    uint16_t imageLen = fb->len;
    uint16_t extraLen = head.length() + tail.length();
    uint16_t totalLen = imageLen + extraLen;

    client_tcp.println("POST /bot" + token + "/sendPhoto HTTP/1.1");
    client_tcp.println("Host: " + String(myDomain));
    client_tcp.println("Content-Length: " + String(totalLen));
    client_tcp.println("Content-Type: multipart/form-data; boundary=Camera");
    client_tcp.println();
    client_tcp.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_tcp.write(fbBuf, 1024);
        fbBuf += 1024;
      }
      else if (fbLen % 1024 > 0)
      {
        size_t remainder = fbLen % 1024;
        client_tcp.write(fbBuf, remainder);
      }
    }

    client_tcp.print(tail);

    esp_camera_fb_return(fb);

    int waitTime = 10000;   // timeout 10 seconds
    long startTime = millis();
    boolean state = false;

    while ((startTime + waitTime) > millis())
    {
      Serial.print(".");
      delay(100);

      while (client_tcp.available())
      {
        char c = client_tcp.read();

        if (c == '\n')
        {
          if (getAll.length() == 0) state = true;
          getAll = "";
        }
        else if (c != '\r')
          getAll += String(c);
        if (state == true) getBody += String(c);
        startTime = millis();
      }

      if (getBody.length() > 0) break;
    }

    client_tcp.stop();
    Serial.println(getBody);
  }
  else {
    getBody = "Connection to telegram failed.";
    Serial.println("Connection to telegram failed.");
  }

  return getBody;
}