joekutz| Quantity | Component name | |
| 1 | × | Arduino Uno |
| 1 | × | 90LED-strip |
| 10 | × | Resistors 10kohm and 100Ohm |
| 3 | × | BC547 Transistor |
| 1 | × | I2C RTC module I used a MOD-RTC and cannot recommend it :( |
| 1 | × | 12V fan motor |
| 1 | × | 8-12V Power supply |
| 6 | × | pushbuttons |
Arduino Nipkow disk clock
There is an old-fashioned type of Persistence-Of-View display called Nipkow disk display. I made a desk clock using that principle.