Web Controlled Relay Arduino

Arduino control relay schematic.
Web controlled relay arduino. It is used to programmatically control on off the devices which use the high voltage and or high current. It is a bridge between arduino and high voltage devices. Now you can use this project to control any electronics appliance you want. This project is a simplified version of one of my projects in the arduino step by step projects.
Here to turn on the relay with arduino we just need to make that arduino pin high a0 in our case where relay module is connected. How does the circuit works. Arduino webserver control lights relays servos etc. In this project using only an arduino with an ethernet shield.
I ll be controlling one led and a servo but you can apply this method to control a dc motors buzzers relays stepper motors etc. When the button is pressed the arduino board will put pin 2 in high state meaning 5v on pin 2. With this project you built an arduino web server that turns a relay on and off. Below given is relay driver circuit to build your own relay module.
In this arduino relay control circuit we have used arduino to control the relay via a bc547 transistor. When you upload the the code provided in.