Quantity   Component name
1 × ATTiny45 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
20 × LEDs SMD 0805 Red Super bright Red
1 × PCB "perfect purple PCB" from a maker friendly PCP service
1 × Coin Cell Holder CR2032 3V Cell Coin Battery Socket Holder Case CE6
1 × push button Taktile Push Button Switch federnd Lockless SMD 2-Pin 4pin
1 × CR2032 Coin Cell