#include "esp_camera.h"
#include <WiFi.h>
#include "esp_http_server.h"
// ===================
// AI THINKER CAMERA PINS
// ===================
#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
// ===================
// WIFI SETTINGS (HOTSPOT MODE)
// ===================
const char* ssid = "ESP32-CAM";
const char* password = "12345678";
// ===================
// STREAM HANDLER
// ===================
httpd_handle_t stream_httpd = NULL;
static const char* _STREAM_CONTENT_TYPE = "multipart/x-mixed-replace;boundary=frame";
static const char* _STREAM_BOUNDARY = "\r\n--frame\r\n";
static const char* _STREAM_PART = "Content-Type: image/jpeg\r\nContent-Length: %u\r\n\r\n";
static esp_err_t stream_handler(httpd_req_t *req){
camera_fb_t * fb = NULL;
esp_err_t res = ESP_OK;
char part_buf[64];
res = httpd_resp_set_type(req, _STREAM_CONTENT_TYPE);
while(true){
fb = esp_camera_fb_get();
if (!fb) {
Serial.println("Camera capture failed");
return ESP_FAIL;
}
size_t hlen = snprintf((char *)part_buf, 64, _STREAM_PART, fb->len);
res = httpd_resp_send_chunk(req, _STREAM_BOUNDARY, strlen(_STREAM_BOUNDARY));
res = httpd_resp_send_chunk(req, part_buf, hlen);
res = httpd_resp_send_chunk(req, (const char *)fb->buf, fb->len);
esp_camera_fb_return(fb);
if(res != ESP_OK){
break;
}
}
return res;
}
// ===================
// START SERVER
// ===================
void startCameraServer(){
httpd_config_t config = HTTPD_DEFAULT_CONFIG();
httpd_uri_t stream_uri = {
.uri = "/",
.method = HTTP_GET,
.handler = stream_handler,
.user_ctx = NULL
};
if (httpd_start(&stream_httpd, &config) == ESP_OK) {
httpd_register_uri_handler(stream_httpd, &stream_uri);
}
}
// ===================
// CAMERA INIT
// ===================
void initCamera(){
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;
config.frame_size = FRAMESIZE_QVGA;
config.jpeg_quality = 12;
config.fb_count = 1;
esp_err_t err = esp_camera_init(&config);
if (err != ESP_OK) {
Serial.printf("Camera init failed: 0x%x", err);
return;
}
}
// ===================
// SETUP
// ===================
void setup() {
Serial.begin(115200);
Serial.println();
initCamera();
// Hotspot mode
WiFi.softAP(ssid, password);
Serial.println("WiFi started");
Serial.print("Connect to: ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.softAPIP());
startCameraServer();
Serial.println("Camera Stream Ready!");
}
// ===================
// LOOP
// ===================
void loop() {
delay(1000);
}