Learn to Arduino
Arduino is a prototype platform (open-source) based on an easy-to-use hardware and software. It consists of a circuit board, which can be programed (referred to as a microcontroller) and a ready-made software called Arduino IDE (Integrated Development Environment), which is used to write and upload the computer code to the physical board.
Try to click a button on the web interface; it should change the state of the relay nearly instantly. If you managed to get it working, bravo! You just built a Wi-Fi-controlled light switch. Of course, you can control much more than lights with this project. Just make sure your relay supports the power required for the device you want to control, and you are good to go.
Arduino is a prototype platform (open-source) based on an easy-to-use hardware and software. It consists of a circuit board, which can be programed (referred to as a microcontroller) and a ready-made software called Arduino IDE (Integrated Development Environment), which is used to write and upload the computer code to the physical board.
Try to click a button on the web interface; it should change the state of the relay nearly instantly. If you managed to get it working, bravo! You just built a Wi-Fi-controlled light switch. Of course, you can control much more than lights with this project. Just make sure your relay supports the power required for the device you want to control, and you are good to go.