Tutorial ESP32 44/55 - Serverka Web-ka Kamarada ESP32-ka ee Qulqulka Fiidiyowga ee Wifi CAM-2 | Qalabka ESP32 ee SunFounder

Tutorial ESP32 44/55 - Serverka Web-ka Kamarada ESP32-ka ee Qulqulka Fiidiyowga ee Wifi CAM-2 | Qalabka ESP32 ee SunFounder

Tusobaxan, waxaanu ku samayn doonnaa goob cimilo oo waqti-dhab ah iyadoo la adeegsanayo ESP32 iyo qaybta kamaradiisa. Mashruucani wuxuu u oggolaanayaa ESP32 inuu ku muujiyo xogta cimilada sida heerkulka iyo qoyaanka shaashadda LCD, isagoo sidoo kale sii daaya fiidiyowga internetka Wi-Fi. Dhammaadka tusobaxan, waxaad yeelan doontaa goob cimilo oo shaqaynaysa oo cusboonaysiisa 10 ilbiriqsi kasta, iyadoo ku siinaysa macluumaad cimilo oo qiimo leh gacantaada. Si aad u caddeyso, fiiri fiidiyowga (fiidiyowga 00:00).

Qaybaha Hardware La Sharaxay

Qaybaha ugu muhiimsan ee mashruucan waxaa ka mid ah microcontroller-ka ESP32, shaashadda LCD, iyo module kamarad. ESP32 waa microcontroller awood badan oo leh awoodo Wi-Fi iyo Bluetooth ku dhex dhisan, taasoo u oggolaanaysa inuu ku xirmo internetka oo uu la xiriiro aaladaha kale. Module-ka kamaradu wuxuu u oggolaanayaa sii daynta fiidiyowga, halka shaashadda LCD ay soo bandhigto macluumaadka cimilada isticmaalaha.

LCD-ga loo adeegsaday mashruucan waa shaashad 20x4 xarfo ah, kaas oo muujin kara xog badan hal mar. Waxaa lagu xiraa ESP32 si uu u muujiyo heerkulka, qoyaanka, iyo xogta kale ee cimilada laga soo qaado API-ga internetka. ESP32 sidoo kale waxaa ku jira nidaam maareyn batari, taasoo u oggolaanaysa inuu si wireless ah u shaqeeyo.

Faahfaahinta Xogta Teknolojiyadda

• Hubi inaad siiso sahayda danab ee saxda ah (3.0 - 3.6 V).
• U isticmaal qalabka kulaylka qaboojiya codsiyada qulqulka sare.
• Ka digtoonow xadka qulqulka GPIO (12 mA pin kasta).
• Ku xir LCD-ga iyo kamarada si sax ah si looga fogaado isfaham la'aanta.
• Hubi aqoonsiga Wi-Fi iyo furayaasha API ee arrimaha isku xirka.

Tilmaamaha Xiritaanka

Si aad u xirto ESP32-ga LCD-ga iyo module-ka kamarada, waxaad ku bilaabaysaa isku xirka biinanka danabka iyo dhulka. Ku xir biinka dhulka ee ESP32-ga dhulka LCD-ga iyo kamarada. Kadib, ku xir biinka 5V ee ESP32-ga VCC-ga LCD-ga. Kamarada, ku xir fiilada brown-ka dhulka, fiilada casaanka ah 5V, fiilada jaalaha ah GPIO 21, iyo fiilada orange-ka ah GPIO 22. Hubi in xiritaanku adag yahay si looga fogaado dhibaatooyinka inta lagu jiro hawlgalka.

Kadib, ku xir LCD-ga biinanka GPIO ee ku habboon. Biinanka gaarka ah waxay ku kala duwanaan karaan iyadoo ku xiran qaabkaaga, laakiin caadi ahaan, waxaad ku xiri doontaa biinanka xakamaynta GPIO-yada loo qoondeeyay ee ESP32-ga. Hubi inaad tixraacdo xogta teknolojiyadda ama jaantuska biinanka ee moodalka LCD-ga ee gaarka ah si aad u xaqiijiso xiritaanka saxda ah. Kadib dhammaystirka xiritaannadan, laba jeer hubi dhammaan xiritaannada si aad u ogaato wax xiritaan oo dabacsan ama qalad ah.

Tusaalooyinka Koodhka & Sharaxaadda

Koodhka, waxaanu marka hore ku daraynaa maktabadaha lagama maarmaanka ah ee lagu maareeyo kamarada iyo shaqooyinka Wi-Fi. Aqoonsiyada muhiimka ah waa la ku dhawaaqay, oo ay ku jiraan ssid iyo password ee aqoonsiga Wi-Fi. Qaabaynta kamarada waxaa lagu dejiyaa iyadoo la adeegsanayo qaab-dhismeedka camera_config_t, halkaas oo aanu ku qeexno halbeegyo kala duwan sida qaabka pixel-ka iyo cabbirka frame-ka.

const char* ssid = "SSID";
const char* password = "PASSWORD";

void setup() {
  Serial.begin(115200);
  camera_config_t config;
  // ... (qaabaynta)
  esp_err_t err = esp_camera_init(&config);
  // Hubi khaladaadka
}

Qaybtani waxay bilaabaysaa kamarada oo waxay hubisaa khaladaadka inta lagu jiro qaabaynta. Haddii kamaradu ku guuldareysato bilaabista, farriin khalad ah ayaa lagu daabacaa kormeerka serial-ka.

Kadib, waxaanu maareynaa isku xirka Wi-Fi oo waxaanu bilaabaynaa server-ka kamarada. Wareegga isku xirka wuxuu sii socdaa ilaa isku xirka Wi-Fi ee guuleysta la sameeyo, taas oo muhiim u ah soo qaadista xogta cimilada ee API-ga.

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

Qaybtan, waxaanu bilaabaynaa isku xirka Wi-Fi oo waxaanu ku daabacaynaa dhibco kormeerka serial-ka ilaa isku xirka la sameeyo. Marka la xiro, server-ka kamarada waa la bilaabay, taasoo u oggolaanaysa sii daynta fiidiyowga.

Koodhka dhammaystiran ayaa hoos ku soo dejin doona maqaalka, halkaas oo aad ka arki karto sida dhammaan qaybaha isugu yimaadaan.

Muuujinta / Waxa Lagu Filan Karaa

Marka dhammaan wax la xiro oo koodhka la soo geliyo, waxaad filan kartaa in ESP32-ga uu ku xirmo shabakadda Wi-Fi oo uu bilaabo soo qaadista xogta cimilada 10 ilbiriqsi kasta. Akhrinta heerkulka iyo qoyaanka ayaa lagu muujin doonaa shaashadda LCD. Intaa waxaa dheer, kamaradu waxay sii dayn doontaa fiidiyowga internetka Wi-Fi, kaas oo lagu heli karo cinwaanka IP-ga maxalliga ah ee lagu daabacay kormeerka serial-ka. Haddii isku xirka Wi-Fi uu ku guuldareysto, ESP32-ga wuxuu kugu wargelin doonaa iyadoo loo marayo soo saarka serial-ka (fiidiyowga 10:00).

Waqtiyada Fiidiyowga

• 00:00 Bilow
• 1:42 Hordhaca ESP32-Cam
• 4:30 Koodhka Arduino la sharaxay
• 7:35 Doorashada Board-ka ESP32 iyo COM port-ka Arduino IDE
• 9:17 Muujin
• 12:06 Muujin Taleefanka Gacanta

Sawirro

ESP32-40-micro-sd-card-2

extension_bopard_camera

ESP32-40-micro-sd-card-2

extension_bopard_camera

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

//
// WARNING!!! PSRAM IC required for UXGA resolution and high JPEG quality
//            Ensure ESP32 Wrover Module or other board with PSRAM is selected
//            Partial images will be transmitted if image exceeds buffer size
//
//            You must select partition scheme from the board menu that has at least 3MB APP space.
//            Face Recognition is DISABLED for ESP32 and ESP32-S2, because it takes up from 15 
//            seconds to process single frame. Face Detection is ENABLED if PSRAM is enabled as well

// ===================
// Select camera model
// ===================
//#define CAMERA_MODEL_WROVER_KIT // Has PSRAM
// #define CAMERA_MODEL_ESP_EYE // Has PSRAM
//#define CAMERA_MODEL_ESP32S3_EYE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_PSRAM // Has PSRAM
//#define CAMERA_MODEL_M5STACK_V2_PSRAM // M5Camera version B Has PSRAM
//#define CAMERA_MODEL_M5STACK_WIDE // Has PSRAM
//#define CAMERA_MODEL_M5STACK_ESP32CAM // No PSRAM
//#define CAMERA_MODEL_M5STACK_UNITCAM // No PSRAM
#define CAMERA_MODEL_AI_THINKER // Has PSRAM
//#define CAMERA_MODEL_TTGO_T_JOURNAL // No PSRAM
//#define CAMERA_MODEL_XIAO_ESP32S3 // Has PSRAM
// ** Espressif Internal Boards **
//#define CAMERA_MODEL_ESP32_CAM_BOARD
//#define CAMERA_MODEL_ESP32S2_CAM_BOARD
//#define CAMERA_MODEL_ESP32S3_CAM_LCD

#include "camera_pins.h"

// Replace the next variables with your SSID/Password combination
const char* ssid = "SSID";
const char* password = "PASSWORD";

void startCameraServer();
void setupLedFlash(int pin);

void setup() {
  Serial.begin(115200);
  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_sccb_sda = SIOD_GPIO_NUM;
  config.pin_sccb_scl = SIOC_GPIO_NUM;
  config.pin_pwdn = PWDN_GPIO_NUM;
  config.pin_reset = RESET_GPIO_NUM;
  config.xclk_freq_hz = 20000000;
  config.frame_size = FRAMESIZE_UXGA;
  config.pixel_format = PIXFORMAT_JPEG; // for streaming
  // config.pixel_format = PIXFORMAT_RGB565; // for face detection/recognition
  config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
  config.fb_location = CAMERA_FB_IN_PSRAM;
  config.jpeg_quality = 12;
  config.fb_count = 1;
  
  // if PSRAM IC present, init with UXGA resolution and higher JPEG quality
  //                      for larger pre-allocated frame buffer.
  if(config.pixel_format == PIXFORMAT_JPEG){
    if(psramFound()){
      config.jpeg_quality = 10;
      config.fb_count = 2;
      config.grab_mode = CAMERA_GRAB_LATEST;
    } else {
      // Limit the frame size when PSRAM is not available
      config.frame_size = FRAMESIZE_SVGA;
      config.fb_location = CAMERA_FB_IN_DRAM;
    }
  } else {
    // Best option for face detection/recognition
    config.frame_size = FRAMESIZE_240X240;
#if CONFIG_IDF_TARGET_ESP32S3
    config.fb_count = 2;
#endif
  }

#if defined(CAMERA_MODEL_ESP_EYE)
  pinMode(13, INPUT_PULLUP);
  pinMode(14, INPUT_PULLUP);
#endif

  // 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();
  // initial sensors are flipped vertically and colors are a bit saturated
  if (s->id.PID == OV3660_PID) {
    s->set_vflip(s, 1); // flip it back
    s->set_brightness(s, 1); // up the brightness just a bit
    s->set_saturation(s, -2); // lower the saturation
  }
  // drop down frame size for higher initial frame rate
  if(config.pixel_format == PIXFORMAT_JPEG){
    s->set_framesize(s, FRAMESIZE_QVGA);
  }

#if defined(CAMERA_MODEL_M5STACK_WIDE) || defined(CAMERA_MODEL_M5STACK_ESP32CAM)
  s->set_vflip(s, 1);
  s->set_hmirror(s, 1);
#endif

#if defined(CAMERA_MODEL_ESP32S3_EYE)
  s->set_vflip(s, 1);
#endif

// Setup LED FLash if LED pin is defined in camera_pins.h
#if defined(LED_GPIO_NUM)
  setupLedFlash(LED_GPIO_NUM);
#endif

  WiFi.begin(ssid, password);
  WiFi.setSleep(false);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  startCameraServer();

  Serial.print("Camera Ready! Use 'http://");
  Serial.print(WiFi.localIP());
  Serial.println("' to connect");
}

void loop() {
  // Do nothing. Everything is done in another task by the web server
  delay(10000);
}