Quantity   Component name
1 × PIC16F18325-I/SL 8-bit microcontroller with 14KB flash, 1KB RAM, SOIC-14 package
1 × USB B Mini PCB-mounted receptacle
1 × 22k resistor 0805 package
1 × 100n capacitor X7R type, 0805 package
2 × 8x8 LED matrix module with MAX7219 controller From Aliexpress (search for FC-16) or build a DIY version (see my other project)
2 × 12mm push-button switch Through-hole
2 × Colored plastic switch caps