Introduction
The ESP8266 microcontroller is widely used in Internet of Things (IoT) projects. With WiFi connectivity, it can send and receive data from cloud servers.
In this project, we create a simple IoT control system using a mobile browser.
Features
- Control devices over WiFi
- Remote access through web interface
- Simple HTTP-based control
Components
- ESP8266 NodeMCU
- Relay module
- Power supply
- Breadboard
Working Principle
The ESP8266 connects to your WiFi network and hosts a web server. When a user opens the device IP address, the ESP8266 displays control buttons.
Commands sent through the webpage turn the relay ON or OFF.
Example Applications
- Smart home automation
- Remote light control
- IoT appliance control
- DIY smart switch
Conclusion
ESP8266 makes it easy to build low-cost IoT systems. With cloud integration, you can control devices from anywhere in the world.