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ESP-IDF captive portal component with Wi-Fi configuration, scanning, DNS hijacking, mDNS, and HTTP server. Directly usable as an API component for any ESP32 series.
readme
# ESP32-captive_portal
ESP-IDF Captive Portal & WiFi Provisioning Component
## What it Does
This component provides a complete captive portal with WiFi setup (including WiFi scanning!), DNS hijack, HTTP server, and mDNS (.local) for any ESP32 project.
Integrate in a single line—fully open source.
### Features
- Automatic AP/captive portal if no WiFi is configured
- Network scan via `/scan` endpoint (returns JSON)
- Choose SSID and enter password in web portal
- HTTP server based on ESP-IDF component
- DNS hijack (redirects any site to the portal)
- mDNS (.local) support
- Works on ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6, and more
- Fully usable as an ESP-IDF component
## Usage
Copy this folder to your `/components/` directory, or add it using the component manager.
Include the library in your application:
```c
#include "captive_portal.h"
void wifi_event_cb(wifi_config_event_t event) {
if (event == WIFI_CONFIG_EVENT_CONNECTED)
printf("WiFi connected!\n");
else if (event == WIFI_CONFIG_EVENT_DISCONNECTED)
printf("WiFi disconnected!\n");
}
void app_main(void) {
wifi_config_init("ESP32-Setup", NULL, wifi_event_cb);
}
}
```
StudioPieters® | Innovation and Learning Labs | https://www.studiopieters.nl
Links
Maintainer
- info@studiopieters.nl
License: MIT
To add this component to your project, run:
download archive
idf.py add-dependency "achimpieters/esp32-captive_portal^1.0.1"
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