In this tutorial, we will see how replace Arduino board with Atmega328 IC and with few other components. For using Atmega328 IC in place of arduino, first we have to burn Arduino Bootloader in it and then we will program it using FTDI or using Arduino Board. This tutorial will also help in replacing damaged Atmega328 IC from Arduino board. Also by using the circuit described below you can build your own Arduino board by replicating it on PCB.