devoalda
/
INF2004_Project
mirror of https://github.com/L4ncelot-R/freeRTOS-car.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

webserver readme

This commit is contained in:
OldManSteve 2023-11-25 12:56:06 +08:00
parent 778e4f564e
commit 6e1a5f38bc
1 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
README.md
View File

@ -69,4 +69,37 @@ The final version of the magnetometer uses a **moving average filter** to smooth
## Barcode (Line) Sensor
## WiFi (Web Server) Module
The WiFi (Web Server) Module within this project integrates Server-Side Includes (SSI) and Common Gateway Interface (CGI) handlers from the lwIP library, facilitating a web interface to display information and receive controls from a webpage.
### Components Overview
1. **[frontend.h](frtos/frontend/frontend.h):** This component initializes and manages the web server frontend. It establishes the initial connection to the WiFi network using environment variables such as WIFI_SSID and WIFI_PASSWORD.
2. **[html_files](frtos/frontend/html_files):** This directory contains HTML files used for the web server display. These files are linked into lwIP to enable server-side processing and rendering.
3. **[ssi.h](frtos/frontend/ssi.h):** Handles Server-Side Includes (SSI), which dynamically inserts content into web pages, allowing the display of real-time or changing information.
4. **[cgi.h](frtos/frontend/cgi.h):** Manages Common Gateway Interface (CGI) handlers, enabling the reception of controls and user interactions from the web interface.
5. **makefsdata Utility:** This tool generates `htmldata.c` by converting HTML files into hexadecimal representation to link them into lwIP. It involves converting filenames into hex, defining HTTP headers for file extensions, and converting HTML content into a hex array for efficient storage and retrieval.
- **Automatic Generation of htmldata.c:**
- `makefsdata.c` creates `makefsdata.exe` automatically upon build, as specified in `CMakeLists.txt`.
- `makefsdata.exe` in turn generates `htmldata.c`, which links the HTML pages to lwIP for server-side processing, enabling seamless integration of web content.
### Functionality and Implementation Details
The WiFi (Web Server) Module offers the following functionalities:
- **Dynamic Content Display:** SSI allows the server to include dynamic content in web pages, facilitating real-time updates or information display.
- **User Interaction Handling:** CGI enables the server to process user interactions received from the web interface, enabling control and interaction with the Pico-based car.
- **WiFi Connectivity:** `frontend.h` establishes a connection to the designated WiFi network using the environment variables WIFI_SSID and WIFI_PASSWORD. This connection is essential for enabling communication between the Pico device and the network.
The integration of SSI, CGI, and the makefsdata tool empowers the WiFi (Web Server) Module to provide a user-friendly interface for monitoring and controlling the Pico-based car within the defined network environment.