• Captive portal for esp8266
  • Description
  • Usage
  • Code design
    • Storage
  • License
    • THANKS ;)

A captive portal is a web page accessed with a web browser that is displayed to newly connected users of a Wi-Fi or wired network before they are granted broader access to network resources.
This implementation uses DNS redirecting method for ESP8266 microchip for Wi-Fi network.

Keep in mind: One of limitation of this method is not being compatible with HTTPS domains, in other words only HTTP domains will be redirected to portal.

1. First, clone the project.

   git clone https://github.com/Ali-Nasrolahi/esp8266_captive_portal.git

2. Then setup your arduino environment and your board programmer. We're using Wemos d1 r1 board. checkout your vendor page for complete setup.

   General configurations are available through set of macros included in include/config.h.

3. After confirming the configs you could easily upload the sketch and view the result by connecting to created AP.

That's it 😃

Source code is designed to be easy to expand and modify. If you like to add new webpage or image just add your new method to Webpage class implement the handler then pass the data or file path to loadFile.

Just register your handler at setup and done!!!

An alternative method to display your webpages is to use a filesystem and store pages' data into flash.

To do so:

1. First you need to upload your HTML, CSS, JS, jpeg, ... data to your flash. here we using LittleFS to store and retrieve data.

   • LittleFS installation and uploader is available at LittleFS-plugin github page.

2. Enable macro USE_FS to use filesystem instead of hard-coded data.

3. Implement your handler and that's all.

GPLv3