Tutorial ESP32-CAM: Smart Bell dengan Kamera Otomatis untuk Mengetahui Siapa Tamu Anda

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

#define BOT_TOKEN "your_bot_it"
#define chat_id "your_id"
#define _debug

const char* ssid = "wifi_ssid";
const char* password = "wifi_pwd";

WiFiClientSecure client;
UniversalTelegramBot bot(BOT_TOKEN, client);

long bot_last_check;
int bot_check_interval = 3000;

bool hasMoreData;
camera_fb_t * fb = NULL;

bool hasMoreDataAvailable();
byte* getNextBuffer();
int getBufferLen();

//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 button = 13;
int buzzer = 12;
int KlikButton = LOW;

void setup() {
  pinMode(button, INPUT);
  pinMode(buzzer, OUTPUT);
  Serial.begin(9600);
  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;
  
  // jika ada PSRAM IC, init dengan UXGA resolution dan  kualitas JPEG yang lebih tinggi
  // untuk buffer bingkat pra-alokasi yang lebih besar.
  if(psramFound()){
    config.frame_size = FRAMESIZE_QVGA;
    config.jpeg_quality = 10;
    config.fb_count = 2;
  } else {
    config.frame_size = FRAMESIZE_QVGA;
    config.jpeg_quality = 12;
    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);
    return;
  }

  sensor_t * s = esp_camera_sensor_get();
  // tampilan awal yang digunakan adalah vertikal dan warna agak jenuh
  if (s->id.PID == OV3660_PID) {
    s->set_vflip(s, 1); // flip tampilan
    s->set_brightness(s, 1); // menaikkan sedikit kecerahan
    s->set_saturation(s, 0); // menurunkan saturasi
  }
  //drop down ukuran frame untuk frame rate awal yang lebih tinggi
  s->set_framesize(s, FRAMESIZE_QVGA);


  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  bot.longPoll = 60;
}


bool hasMoreDataAvailable() {
  Serial.println("Has more daa");
  if (hasMoreData) {
    hasMoreData = false;
    return true;
  }

  return false;
}


byte* getNextBuffer() {
  Serial.println("Next Buffer ");
  if (fb)
    return fb->buf;

  return nullptr;
}

int getBufferLen() {
Serial.println("Buffer len");
 if (fb)
   return fb->len;

  return 0;
}

void sendImage() { 
  Serial.println("Sending Image");
  fb = NULL;
  fb = esp_camera_fb_get();
  hasMoreData = true;

  Serial.println(fb->len);
  
  bot.sendPhotoByBinary(chat_id, "image/jpeg", fb->len, hasMoreDataAvailable, nullptr, getNextBuffer, getBufferLen);
  
  esp_camera_fb_return(fb);

}

void loop() {
  KlikButton = digitalRead(button); //pembacaan sensor PIR
  if (KlikButton == HIGH) //ketika terdeteksi gerakan
  {
    digitalWrite(buzzer,HIGH);
  if (millis() > bot_last_check + bot_check_interval) {
    sendImage();
    bot_last_check = millis();
  }
  }
  else {
    digitalWrite(buzzer,LOW);
  }
}