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‎.gitignore

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.piolibdeps
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.clang_complete
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.gcc-flags.json
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.pio/
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.vscode/

‎examples/ESP32/SendPhoto/ESP32-Cam/ESP32-Cam.ino

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/*******************************************************************
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A Telegram bot for taking a photo with an ESP32Cam
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Parts used:
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ESP32-CAM module* - http://s.click.aliexpress.com/e/bnXR1eYs
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= Affiliate Links
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Note:
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- Make sure that you have either selected ESP32 Wrover Module,
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or another board which has PSRAM enabled
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- Choose "Huge App" partion scheme
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Some of the camera code comes from Rui Santos:
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https://randomnerdtutorials.com/esp32-cam-take-photo-save-microsd-card/
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Written by Brian Lough
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YouTube: https://www.youtube.com/brianlough
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Tindie: https://www.tindie.com/stores/brianlough/
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Twitter: https://twitter.com/witnessmenow
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*******************************************************************/
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// ----------------------------
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// Standard Libraries - Already Installed if you have ESP32 set up
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// ----------------------------
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#include <WiFi.h>
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#include <WiFiClientSecure.h>
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#include "esp_camera.h"
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// ----------------------------
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// Additional Libraries - each one of these will need to be installed.
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// ----------------------------
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#include <UniversalTelegramBot.h>
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// Library for interacting with the Telegram API
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// Search for "Telegegram" in the Library manager and install
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// The universal Telegram library
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// https://github.com/witnessmenow/Universal-Arduino-Telegram-Bot
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#include <ArduinoJson.h>
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// Library used for parsing Json from the API responses
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// Search for "Arduino Json" in the Arduino Library manager
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// https://github.com/bblanchon/ArduinoJson
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//------- Replace the following! ------
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//#define CAMERA_MODEL_WROVER_KIT
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//#define CAMERA_MODEL_ESP_EYE
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//#define CAMERA_MODEL_M5STACK_PSRAM
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//#define CAMERA_MODEL_M5STACK_WIDE
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#define CAMERA_MODEL_AI_THINKER
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// Initialize Wifi connection to the router
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char ssid[] = "XXXXXX"; // your network SSID (name)
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char password[] = "YYYYYY"; // your network key
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// Initialize Telegram BOT
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#define BOTtoken "XXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" // your Bot Token (Get from Botfather)
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//------- ------------------------ ------
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#include "camera_pins.h"
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#include "camera_code.h"
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#define FLASH_LED_PIN 4
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WiFiClientSecure client;
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UniversalTelegramBot bot(BOTtoken, client);
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int Bot_mtbs = 1000; //mean time between scan messages
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long Bot_lasttime; //last time messages' scan has been done
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bool flashState = LOW;
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camera_fb_t * fb = NULL;
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bool isMoreDataAvailable();
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byte* getNextBuffer();
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int getNextBufferLen();
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bool dataAvailable = false;
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void handleNewMessages(int numNewMessages) {
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Serial.println("handleNewMessages");
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Serial.println(String(numNewMessages));
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for (int i = 0; i < numNewMessages; i++) {
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String chat_id = String(bot.messages[i].chat_id);
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String text = bot.messages[i].text;
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String from_name = bot.messages[i].from_name;
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if (from_name == "") from_name = "Guest";
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if (text == "/flash") {
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flashState = !flashState;
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digitalWrite(FLASH_LED_PIN, flashState);
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}
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if (text == "/photo") {
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fb = NULL;
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// Take Picture with Camera
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fb = esp_camera_fb_get();
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if (!fb) {
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Serial.println("Camera capture failed");
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bot.sendMessage(chat_id, "Camera capture failed", "");
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return;
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}
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dataAvailable = true;
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Serial.println("Sending");
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bot.sendPhotoByBinary(chat_id, "image/jpeg", fb->len,
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isMoreDataAvailable, nullptr,
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getNextBuffer, getNextBufferLen);
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Serial.println("done!");
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esp_camera_fb_return(fb);
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}
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if (text == "/start") {
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String welcome = "Welcome to the ESP32Cam Telegram bot.\n\n";
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welcome += "/photo : will take a photo\n";
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welcome += "/flash : toggle flash LED (VERY BRIGHT!)\n";
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bot.sendMessage(chat_id, welcome, "Markdown");
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}
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}
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}
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bool isMoreDataAvailable() {
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if (dataAvailable)
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{
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dataAvailable = false;
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return true;
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} else {
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return false;
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}
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}
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byte* getNextBuffer(){
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if (fb){
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return fb->buf;
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} else {
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return nullptr;
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}
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}
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int getNextBufferLen(){
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if (fb){
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return fb->len;
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} else {
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return 0;
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}
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}
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void setup() {
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Serial.begin(115200);
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pinMode(FLASH_LED_PIN, OUTPUT);
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digitalWrite(FLASH_LED_PIN, flashState); //defaults to low
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if (!setupCamera()) {
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Serial.println("Camera Setup Failed!");
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while (true) {
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delay(100);
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}
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}
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// Attempt to connect to Wifi network:
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Serial.print("Connecting Wifi: ");
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Serial.println(ssid);
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// Set WiFi to station mode and disconnect from an AP if it was Previously
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// connected
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WiFi.mode(WIFI_STA);
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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Serial.print(".");
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delay(500);
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.print("IP address: ");
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Serial.println(WiFi.localIP());
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// Make the bot wait for a new message for up to 60seconds
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bot.longPoll = 60;
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}
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void loop() {
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if (millis() > Bot_lasttime + Bot_mtbs) {
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int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
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while (numNewMessages) {
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Serial.println("got response");
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handleNewMessages(numNewMessages);
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numNewMessages = bot.getUpdates(bot.last_message_received + 1);
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}
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Bot_lasttime = millis();
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}
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}

‎examples/ESP32/SendPhoto/ESP32-Cam/camera_code.h

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bool setupCamera() {
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camera_config_t config;
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config.ledc_channel = LEDC_CHANNEL_0;
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config.ledc_timer = LEDC_TIMER_0;
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config.pin_d0 = Y2_GPIO_NUM;
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config.pin_d1 = Y3_GPIO_NUM;
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config.pin_d2 = Y4_GPIO_NUM;
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config.pin_d3 = Y5_GPIO_NUM;
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config.pin_d4 = Y6_GPIO_NUM;
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config.pin_d5 = Y7_GPIO_NUM;
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config.pin_d6 = Y8_GPIO_NUM;
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config.pin_d7 = Y9_GPIO_NUM;
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config.pin_xclk = XCLK_GPIO_NUM;
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config.pin_pclk = PCLK_GPIO_NUM;
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config.pin_vsync = VSYNC_GPIO_NUM;
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config.pin_href = HREF_GPIO_NUM;
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config.pin_sscb_sda = SIOD_GPIO_NUM;
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config.pin_sscb_scl = SIOC_GPIO_NUM;
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config.pin_pwdn = PWDN_GPIO_NUM;
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config.pin_reset = RESET_GPIO_NUM;
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config.xclk_freq_hz = 20000000;
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config.pixel_format = PIXFORMAT_JPEG;
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//init with high specs to pre-allocate larger buffers
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if (psramFound()) {
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config.frame_size = FRAMESIZE_UXGA; // FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA
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config.jpeg_quality = 10;
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config.fb_count = 2;
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} else {
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config.frame_size = FRAMESIZE_SVGA;
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config.jpeg_quality = 12;
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config.fb_count = 1;
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}
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#if defined(CAMERA_MODEL_ESP_EYE)
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pinMode(13, INPUT_PULLUP);
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pinMode(14, INPUT_PULLUP);
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#endif
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// camera init
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esp_err_t err = esp_camera_init(&config);
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if (err != ESP_OK) {
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Serial.printf("Camera init failed with error 0x%x", err);
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return false;
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}
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sensor_t * s = esp_camera_sensor_get();
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//initial sensors are flipped vertically and colors are a bit saturated
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if (s->id.PID == OV3660_PID) {
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s->set_vflip(s, 1);//flip it back
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s->set_brightness(s, 1);//up the blightness just a bit
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s->set_saturation(s, -2);//lower the saturation
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}
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//drop down frame size for higher initial frame rate
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s->set_framesize(s, FRAMESIZE_QVGA);
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#if defined(CAMERA_MODEL_M5STACK_WIDE)
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s->set_vflip(s, 1);
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s->set_hmirror(s, 1);
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#endif
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return true;
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}

‎examples/ESP32/SendPhoto/ESP32-Cam/camera_pins.h

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#if defined(CAMERA_MODEL_WROVER_KIT)
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#define PWDN_GPIO_NUM -1
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#define RESET_GPIO_NUM -1
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#define XCLK_GPIO_NUM 21
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#define SIOD_GPIO_NUM 26
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#define SIOC_GPIO_NUM 27
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#define Y9_GPIO_NUM 35
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#define Y8_GPIO_NUM 34
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#define Y7_GPIO_NUM 39
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#define Y6_GPIO_NUM 36
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#define Y5_GPIO_NUM 19
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#define Y4_GPIO_NUM 18
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#define Y3_GPIO_NUM 5
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#define Y2_GPIO_NUM 4
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#define VSYNC_GPIO_NUM 25
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#define HREF_GPIO_NUM 23
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#define PCLK_GPIO_NUM 22
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#elif defined(CAMERA_MODEL_ESP_EYE)
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#define PWDN_GPIO_NUM -1
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#define RESET_GPIO_NUM -1
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#define XCLK_GPIO_NUM 4
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#define SIOD_GPIO_NUM 18
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#define SIOC_GPIO_NUM 23
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#define Y9_GPIO_NUM 36
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#define Y8_GPIO_NUM 37
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#define Y7_GPIO_NUM 38
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#define Y6_GPIO_NUM 39
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#define Y5_GPIO_NUM 35
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#define Y4_GPIO_NUM 14
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#define Y3_GPIO_NUM 13
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#define Y2_GPIO_NUM 34
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#define VSYNC_GPIO_NUM 5
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#define HREF_GPIO_NUM 27
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#define PCLK_GPIO_NUM 25
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#elif defined(CAMERA_MODEL_M5STACK_PSRAM)
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#define PWDN_GPIO_NUM -1
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#define RESET_GPIO_NUM 15
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#define XCLK_GPIO_NUM 27
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#define SIOD_GPIO_NUM 25
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#define SIOC_GPIO_NUM 23
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#define Y9_GPIO_NUM 19
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#define Y8_GPIO_NUM 36
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#define Y7_GPIO_NUM 18
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#define Y6_GPIO_NUM 39
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#define Y5_GPIO_NUM 5
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#define Y4_GPIO_NUM 34
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#define Y3_GPIO_NUM 35
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#define Y2_GPIO_NUM 32
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#define VSYNC_GPIO_NUM 22
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#define HREF_GPIO_NUM 26
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#define PCLK_GPIO_NUM 21
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#elif defined(CAMERA_MODEL_M5STACK_WIDE)
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#define PWDN_GPIO_NUM -1
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#define RESET_GPIO_NUM 15
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#define XCLK_GPIO_NUM 27
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#define SIOD_GPIO_NUM 22
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#define SIOC_GPIO_NUM 23
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#define Y9_GPIO_NUM 19
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#define Y8_GPIO_NUM 36
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#define Y7_GPIO_NUM 18
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#define Y6_GPIO_NUM 39
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#define Y5_GPIO_NUM 5
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#define Y4_GPIO_NUM 34
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#define Y3_GPIO_NUM 35
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#define Y2_GPIO_NUM 32
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#define VSYNC_GPIO_NUM 25
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#define HREF_GPIO_NUM 26
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#define PCLK_GPIO_NUM 21
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#elif defined(CAMERA_MODEL_AI_THINKER)
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#define PWDN_GPIO_NUM 32
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#define RESET_GPIO_NUM -1
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#define XCLK_GPIO_NUM 0
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#define SIOD_GPIO_NUM 26
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#define SIOC_GPIO_NUM 27
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#define Y9_GPIO_NUM 35
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#define Y8_GPIO_NUM 34
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#define Y7_GPIO_NUM 39
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#define Y6_GPIO_NUM 36
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#define Y5_GPIO_NUM 21
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#define Y4_GPIO_NUM 19
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#define Y3_GPIO_NUM 18
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#define Y2_GPIO_NUM 5
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#define VSYNC_GPIO_NUM 25
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#define HREF_GPIO_NUM 23
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#define PCLK_GPIO_NUM 22
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#else
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#error "Camera model not selected"
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#endif

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