The end result of my final project, La Chose FM synthesizer, is explained in the slide and video below! And here is the BOM for the synth : For the boards: Double sided copper plates x4 SAMD21 x2 10 pin headers x7 4 pin headers x3 Mini USB connectors x2 Power jack x1 Voltage regulators 3.3V 1A x2 Sliders 10k ohm x6 Potentiometer 10k ohm x1 TRS stereo jack x1 LED Green x4 Capacitors: 1uF x6 Resistors: 5K x2 1K x2 100 x2 220 x2 Schottky diode x1 Cables: 2x 10pin female to female cables 4x female to female single cables For the box: 4mm plywood, laser cut 4mm acrylic, clear, laser cut 3D printed side panels, PLA 3D printed PCB holders, PLA Sandpaper Dremel with small (~4mm) drill attachment (or drill...) to make screw holes 16x screws, washers and bolts for screwing the boards and PCB holders to the box The final project files can all be found here! This includes the STL files for printing the side panels and the PCB holders, the Rhino file for laser cutting the box, the PCB KICAD files, as well as the Arduino .ino files to upload to the boards in order to run the synth.