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              |\n| **GND**    | GND                    | -    | Ground                   |\n| **SDA**    | IO21                   | 21   | SCCB (I2C Data)          |\n| **SCL**    | IO22                   | 22   | SCCB (I2C Clock)         |\n| **XCLK/ MCLK**   | IO4                    | 4    | Needs PWM/clock signal   |\n| **D0**     | IO32                   | 32   | Data line                |\n| **D1**     | IO33                   | 33   |                          |\n| **D2**     | IO34                   | 34   | Input-only               |\n| **D3**     | IO35                   | 35   | Input-only               |\n| **D4**     | SN / VN                    | 39   | (GPIO 39, input-only)    |\n| **D5**     | SP / VP                    | 36   | (GPIO 36, input-only)    |\n| **D6**     | IO18                   | 18   |                          |\n| **D7**     | IO19                   | 19   |                          |\n| **PCLK**   | IO25                   | 25   | Pixel clock              |\n| **VSYNC/ VS**  | IO26                   | 26   | Vertical sync            |\n| **HREF/ HS**   | IO27                   | 27   | Horizontal ref           |\n| **RESET**  | 3V3                    | -    | Tie to 3.3V (or use GPIO)|\n| **PWDN**   | GND                    | -    | Tie to GND (or use GPIO) |\n\n---\n\n## 🛠 `platformio.ini` for PlatformIO\n\n```ini\n[env:esp32dev]\nplatform = espressif32\nboard = esp32dev\nframework = arduino\nmonitor_speed = 115200\nupload_speed = 921600\n\nlib_deps =\n  ESPAsyncWebServer\n  AsyncTCP\n```\n\n---\n\n## 📦 ESP32 Camera Stream Code (HTML + Stream Endpoint)\n\nThis is a working local server (LAN) that connects to Mobile/Router WiFi and serves a camera preview page with a placeholder stream:\n\n```cpp\n#include \u003cWiFi.h\u003e\n#include \u003cESPAsyncWebServer.h\u003e\n\nconst char* ssid = \"spa\";\nconst char* password = \"12345678\";\n\nAsyncWebServer server(80);\n\nvoid setup() {\n  Serial.begin(115200);\n\n  // Connect to WiFi (Station Mode)\n  WiFi.begin(ssid, password);\n  Serial.print(\"Connecting to WiFi\");\n  while (WiFi.status() != WL_CONNECTED) {\n    delay(500);\n    Serial.print(\".\");\n  }\n\n  Serial.println(\"\\nConnected to WiFi!\");\n  Serial.println(\"IP Address: \");\n  Serial.println(WiFi.localIP());\n\n  // HTML Page\n  server.on(\"/\", HTTP_GET, [](AsyncWebServerRequest *request){\n    String html = R\"rawliteral(\n      \u003c!DOCTYPE html\u003e\n      \u003chtml\u003e\n      \u003chead\u003e\n        \u003ctitle\u003eESP32 OV7670 Stream\u003c/title\u003e\n      \u003c/head\u003e\n      \u003cbody\u003e\n        \u003ch2\u003eESP32 Camera Stream\u003c/h2\u003e\n        \u003cimg src=\"/stream\" /\u003e\n      \u003c/body\u003e\n      \u003c/html\u003e\n    )rawliteral\";\n    request-\u003esend(200, \"text/html\", html);\n  });\n\n  // Placeholder stream\n  server.on(\"/stream\", HTTP_GET, [](AsyncWebServerRequest *request){\n    // This will be replaced with image data later\n    request-\u003esend(200, \"image/jpeg\", \"\", 0);\n  });\n\n  server.begin();\n}\n\nvoid loop() {\n  // No code here for now\n}\n```\n\n\u003c!-- ---\n\n### ⚠ Next Step: Actual Camera Support\nSince OV7670 doesn’t support JPEG natively and has no FIFO buffer:\n- You’ll need **a camera driver** like [Bitluni’s ESP32CameraOV7670](https://github.com/bitluni/ESP32CameraOV7670)\n- And a JPEG conversion library like [TJpg_Decoder](https://github.com/bitbank2/JPEGDEC) or software JPEG encoding (slow) --\u003e\n\n---\n\n\u003cimg src=\"public/connections.jpg\"\u003e\n\n![wifi](https://github.com/user-attachments/assets/9f633ef8-c2dd-4d4b-a9b9-8ab413d940a0)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Farkadip2007%2Fov7670-camera-module-test-projects","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Farkadip2007%2Fov7670-camera-module-test-projects","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Farkadip2007%2Fov7670-camera-module-test-projects/lists"}