LED Matrix Schematic The schematic has 2 parts. circuit protection and voltage regulation WS2812 LED 6x6 matrix Custom Footprints Custom footprints for the LMS78 and the barrel jack connector were made in Fusion360 Custom barrel jack connector: Custom LMS78: PCB editor The KiCad PCD editor was used to design the PCB below. 3D render of the PCB with the custom footprints: