Build a Professional ESP32 WiFi Manager From Scratch (No Libraries!)
Read the Full Guide & Copy the Code: https://iotbhai.io/build-a-profession...
Stop hardcoding your WiFi credentials! In this video, I show you how to build a professional-grade WiFi Configuration Portal for the ESP32 completely from scratch—without using the WiFiManager library.
We will build a custom C++ class to handle the Web Server, create a stunning Glassmorphism UI using HTML/CSS, and implement advanced features like AJAX scanning and live connection verification.
** What you will build **
1. Zero External Libraries: Lightweight and fully customizable code.
2. Connection Verification: The ESP32 attempts to connect before saving credentials to ensure they are correct.
3. Professional UI: Custom HTML/CSS styling that looks great on mobile.
4. Non-Blocking: Uses background scanning so you don't need to reload the page.
5. EEPROM/Preferences: Saves data permanently using the Preferences library.
** Hardware Used **
ESP32 Development Board
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2. Push Button (for manual reset)
** Timestamps **
00:00 - Why build a custom WiFi Manager?
00:16 - The problem with hardcoding & heavy libraries
01:13 - Preview of the UI & Unique Verification Feature
02:45 - The Workflow: Boot - Check SSD - Config Mode
03:27 - Circuit Diagram (Push Button on D23)
03:55 - Code Structure (.ino, .h, .cpp)
04:50 - Configuration Settings (Timeouts & AP Name)
06:33 - Demo: Starting Config Mode (AP Mode)
07:35 - Connecting to the Captive Portal (192.168.0.1)
08:24 - The "Verification" Feature (Testing Bad Password)
09:00 - Successful Connection & Reboot
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