Quantity   Component name
1 × ATMEGA328PU Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
5 × POTS
2 × 22PF CAPS
1 × 1K SMD RESISTOR
1 × 16MHZ CRYTAL
1 × SPEAKER
1 × ARDUINO UNO/NANO