Learn ESP32 the practical way. We cover networking (Wi-Fi, BLE), sensors and peripherals, asynchronous programming, OTA updates, FreeRTOS, power optimization, and production-ready code.
ESP32 Over-The-Air (OTA) firmware update guide. Use Update.h and WebServer.h to create a minimal HTML file upload form. Safely flash new firmware (.bin) over Wi-Fi.
ESP32: How to create an Over-The-Air (OTA) Web Update Read More »
ESP32 BLE Server. Set up a Bluetooth Low Energy device using the GATT architecture (Services & Characteristics). Enable data exchange with smartphone apps.
ESP32: How to use Bluetooth Low Energy (BLE) Server Communication Read More »
ESP32 RGB LED control using PWM and Web Server sliders. Set color/brightness remotely via an HTML dashboard. Features LEDC peripheral and a modern dark theme interface.
ESP32: How to create a Web Server to control RGB LED Read More »
ESP32 Web Server controls a KY-019 Relay Module. Create a remote Active-LOW switch dashboard using HTTP GET requests. Master IoT remote control for high-power devices.
ESP32: How to create a Web Server to control the KY-019 Relay Module Read More »
ESP32 HTS221 Web Dashboard. Interface the HTS221 temp/humidity sensor using I2C and the Wire library. Display live, auto-refreshing sensor readings on a web server.
ESP32: How to create a Web dashboard for the HTS221 Read More »
ESP32 Web Server controls a 16×2 LCD (HD44780) using 4-bit parallel wiring. Input text via a browser’s HTML form to instantly display remote messages on the screen.
ESP32: How to create a Web Server to control a 16×2 LCD Display Read More »
This ESP32 tutorial guides you through creating a dynamic, interactive Wi-Fi setup using the Serial Monitor that allows your ESP32 to scan for nearby networks.
ESP32: How to use Wi-Fi Scan, Select, and Connect Interactive Terminal Read More »
This tutorial explains how to serve a PNG image directly from the ESP32’s Flash Memory (specifically, the program memory, not the filesystem) via a web server
ESP32: How to display PNG images from FLASH memory in a WebServer Read More »
This tutorial shows how to programmatically retrieve the default Wi-Fi MAC address and how to permanently set a custom, user-defined ESP32 MAC address
ESP32: How to change and set the Wi-Fi MAC Address Read More »
Build a real-time SG90 Servo Motor controller using the ESP32 and WebSockets. Learn to create a persistent web interface for instant, high-precision 0-180 angle positioning.
ESP32: How to control SG90 Servo Motor via WebSocket Read More »
