This project is based on the STC89C52RC microcontroller, designing and producing a 51 microcontroller minimum system board. The circuit board utilizes an innovative process of a 3D printed substrate plus copper foil tape to create the conductive layer, requiring no etching or thermal transfer throughout the entire process. All components are through-hole packages, making soldering simple and the learning curve low, which is ideal for microcontroller beginners and electronic DIY practice