Quantity   Component name
1 × Arduino Nano
30 × LEDs Electronic Components / Misc. Electronic Components
1 × PWM Power Management ICs / Switching Regulators and Controllers
1 × 0.8mm brass rods
1 × tin Discrete Semiconductors / Thyristors (DIACs, SIDACs, TRIACs, SCRs)
1 × ATmega328 chip