Quantity   Component name
1 × STC15F104W STC 8051 derivative MCU
1 × male 4pin header I recommend a 90 degrees one
4 × tactile switch
1 × on/off switch
1 × 1uF capacitor A smaller one will suffice
4 × 1k-2k resistors
4 × colored LEDs I used red, yellow, green and blue each
1 × USB to TTL serial converter I use the cheap ones from china with CH340