Quantity   Component name
1 × Arduino Nano (or Clone)
1 × RTC DS3231
1 × USB wall plug 5V
2 × Buttons
5 × Resistors (see schematic)
1 × Capacitor
5 × Potentiometer
2 × RGB-LEDs WS2812 (rings) for sun and moon
6 × RGB-LEDs WS2812 compatible (5mm) for the stars