Capture page - when user visits the page, the camera takes single shot and transmits to the page
Stream page - upon user visit, the camera sends frames in real-time.
Code explanation
Ethernet and webserver related code:
For test purposes webserver will be running on static IP which is coded in defines.h file.
handleRoot() Function:
- This function generates an HTML response with information about the server's uptime and serves it when the root URL ("/") is accessed.
handleNotFound() Function:
- This function responds with information about the requested URI, HTTP method, and arguments when a page is notfound (404 Not Found).
- If a query parameter "ql" is provided in the request, it changes the JPEG quality setting of the camera module.
serverCapture() Function:
- This function initiates a camera capture, measures the time taken for the capture, and then calls `camCapture()` to send the captured image to the client.
serverStream() Function:
- This function sets up a multipart response for streaming video frames.
- It continuously captures frames from the camera and sends them as parts of a multipart response, creating a live video stream.
Camera related functions
test_capture() Function:
- This function clears the FIFO (First In, First Out) flag of the camera and initiates a capture.
camCapture() Function:
- This function captures an image from the camera and sends it as an HTTP response with the appropriate content type and length.
- It reads the image data from the camera's FIFO buffer and sends it to the client.
read_fifo_burst() Function:
- This function reads image data from the camera module's FIFO buffer in burst mode.- It processes the image data and prints it to the serial port. This function is not directly used for serving HTTP requests.
i2c_init(), spi_init(), and camera_init() Functions:
- These functions initialize the I2C and SPI communication interfaces and set up the camera module.
- They perform various checks to ensure that the communication with the camera module is established correctly.
Setup & Loop
setup() Function:
- This function is the setup routine that runs once when the Arduino starts.
- It initializes serial communication, I2C, SPI, and the camera module.
- It configures the Ethernet connection and sets up various routes for handling HTTP requests.
loop() Function:
- The `loop()` function runs continuously, and its main purpose is to handle incoming HTTP requests through the `server.handleClient()` method.
Demonstration
When connected to network, the board will run Webserver on designated IP.
