Security-Camera with Esp32 Cam, PIR and Telegram Bot (2024)

/*albino98https://github.com/albino98/telegram_esp32.git*/#ifdef ESP32 #include <WiFi.h>#else #include <ESP8266WiFi.h>#endif#include <WiFiClientSecure.h>#include <UniversalTelegramBot.h> // Universal Telegram Bot Library written by Brian Lough: https://github.com/witnessmenow/Universal-Arduino-Telegram-Bot#include <ArduinoJson.h>#include "esp_camera.h"#include "soc/soc.h"#include "soc/rtc_cntl_reg.h"#include "driver/rtc_io.h"// Replace with your network credentialsconst char* ssid = "NetworkName";const char* password = "NetworkPW";const int motionSensor = 13;int armed = 1;#define BOTtoken "xxxxxxx:xxxxxxxxxxxxxxxxxx" // your Bot Token (Get from Botfather)// Use @myidbot to find out the chat ID of an individual or a group#define CHAT_ID "xxxxxxx"//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 22WiFiClientSecure client;UniversalTelegramBot bot(BOTtoken, client);// Checks for new messages every 1 second.int botRequestDelay = 1000;unsigned long lastTimeBotRan;const int ledPin = 4;bool ledState = LOW;camera_fb_t * fb;uint8_t* fb_buffer;size_t fb_length;int currentByte;boolean startTimer = false;// Handle what happens when you receive new messagesvoid handleNewMessages(int numNewMessages) { Serial.println("handleNewMessages"); Serial.println(String(numNewMessages)); for (int i=0; i<numNewMessages; i++) { // Chat id of the requester String chat_id = String(bot.messages[i].chat_id); if (chat_id != CHAT_ID){ bot.sendMessage(chat_id, "Unauthorized user", ""); continue; }  // Print the received message String text = bot.messages[i].text; Serial.println(text); String from_name = bot.messages[i].from_name; if (text == "/start") { String welcome = "Welcome, " + from_name + ".\n"; welcome += "Use the following commands to control your outputs.\n\n"; welcome += "/take_photo to take a picture \n"; welcome += "/arm to arm the security system \n"; welcome += "/disarm to disarm the security system \n"; welcome += "/led_on to turn GPIO ON \n"; welcome += "/led_off to turn GPIO OFF \n"; welcome += "/state to request current GPIO state and security system state \n"; bot.sendMessage(chat_id, welcome, ""); } if (text == "/led_on") { bot.sendMessage(chat_id, "LED state set to ON", ""); ledState = HIGH; digitalWrite(ledPin, ledState); }  if (text == "/led_off") { bot.sendMessage(chat_id, "LED state set to OFF", ""); ledState = LOW; digitalWrite(ledPin, ledState); } if (text == "/take_photo") { take_send_photo(CHAT_ID); } if (text == "/security_on") { armed = 1; bot.sendMessage(chat_id, "Security System is ON", ""); } if (text == "/security_off") { armed = 0; bot.sendMessage(chat_id, "Security System is OFF", ""); }  if (text == "/state") { if (digitalRead(ledPin)){ bot.sendMessage(chat_id, "LED is ON", ""); } else{ bot.sendMessage(chat_id, "LED is OFF", ""); } if(armed == 1){ bot.sendMessage(chat_id, "The security system is ON", ""); } else { bot.sendMessage(chat_id, "The security system is OFF", "");  } } }}bool isMoreDataAvailable() { return (fb_length - currentByte);}uint8_t photoNextByte() { currentByte++; return (fb_buffer[currentByte - 1]);}void take_send_photo(String chat_id){ camera_fb_t * fb = NULL; fb = esp_camera_fb_get(); currentByte = 0; fb_length = fb->len; fb_buffer = fb->buf; bot.sendPhotoByBinary(chat_id, "image/jpeg", fb->len, isMoreDataAvailable, photoNextByte, nullptr, nullptr); esp_camera_fb_return(fb); fb_length = NULL; fb_buffer = NULL;}void setup() { armed = 1; WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG,0);//disable brownout detector Serial.begin(115200); camera_config_t configg; configg.ledc_channel = LEDC_CHANNEL_0; configg.ledc_timer = LEDC_TIMER_0; configg.pin_d0 = Y2_GPIO_NUM; configg.pin_d1 = Y3_GPIO_NUM; configg.pin_d2 = Y4_GPIO_NUM; configg.pin_d3 = Y5_GPIO_NUM; configg.pin_d4 = Y6_GPIO_NUM; configg.pin_d5 = Y7_GPIO_NUM; configg.pin_d6 = Y8_GPIO_NUM; configg.pin_d7 = Y9_GPIO_NUM; configg.pin_xclk = XCLK_GPIO_NUM; configg.pin_pclk = PCLK_GPIO_NUM; configg.pin_vsync = VSYNC_GPIO_NUM; configg.pin_href = HREF_GPIO_NUM; configg.pin_sscb_sda = SIOD_GPIO_NUM; configg.pin_sscb_scl = SIOC_GPIO_NUM; configg.pin_pwdn = PWDN_GPIO_NUM; configg.pin_reset = RESET_GPIO_NUM; configg.xclk_freq_hz = 20000000; configg.pixel_format = PIXFORMAT_JPEG; pinMode(ledPin, OUTPUT); digitalWrite(ledPin, ledState); rtc_gpio_hold_dis(GPIO_NUM_4); pinMode(GPIO_NUM_13, INPUT_PULLUP); if(psramFound()){ configg.frame_size = FRAMESIZE_UXGA; configg.jpeg_quality = 10; configg.fb_count = 2; }else{ configg.frame_size = FRAMESIZE_SVGA; configg.jpeg_quality = 12; configg.fb_count = 1; } //Init Camera esp_err_t err = esp_camera_init(&configg); if(err != ESP_OK){ Serial.printf("Camera init failed with error");  return; }  // Connect to Wi-Fi WiFi.mode(WIFI_STA); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(1000); Serial.println("Connecting to WiFi.."); } // Print ESP32 Local IP Address Serial.println(WiFi.localIP());}void loop() { if(armed == 1){ int isDetected = digitalRead(13); if(isDetected == 1){ Serial.println("Presence detected"); take_send_photo(CHAT_ID); delay(3000); } } //delay(1000);  //if (millis() > lastTimeBotRan + botRequestDelay) { int numNewMessages = bot.getUpdates(bot.last_message_received + 1); while(numNewMessages) { Serial.println("got response"); handleNewMessages(numNewMessages); numNewMessages = bot.getUpdates(bot.last_message_received + 1); } delay(1000); lastTimeBotRan = millis(); // }}