Quantity   Component name
1 × ATTINY13A-MMU Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
20 × LED 0603
4 × RES 50-200 Ohm 0603 Resistor for leds driving
1 × RES 10 KOhm 0603 Resistor for Reset line
1 × BAT/HOLD. BH500 Battery holder for CR1225 battery
1 × CAP 100nF 0603 Bypass capacitor for MCU