“This instructable will show you how to build your own microcontroller from scratch! This method is simple and doesn’t require any advanced tools, you can even do it at your kitchen table. This also gives a better understanding of how Ardruinos and other microcontrollers really work. You can design your microcontroller to fit your specific purpose. This microcontroller shown in the picture was used to control the rpm of a DC-motor. The DC-motor was controlled from a computer using the serial port. The LEDs were used to assist when debugging was needed. In this Instructable I will show how to build a versatile microcontroller, therefore the part list will not be the same as the one shown in the picture.”