Quantity   Component name
1 × ESP32S3 SuperMini The only required component
1 × Serial communications PCB Optional
1 × MAX232 Optional
1 × Serial port Optional
5 × 0603 1uF Capacitor Optional
2 × 0603 LED Optional
2 × 0603 Resistor (1kOhm) Optional
3 × M2 Bolts Optional