Quantity   Component name
1 × CR2032 Batteries and Battery Accessories / Batteries
1 × 712-BAT-HLD-001 CR2032 Battery Clip
1 × ATMEGA328P-AN Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × ECS-23G 8MHz Crystal
1 × Various resistors and capacitors