SimpleClockEnglish
From BlinkenArea Wiki
project overview  | |
| |
| Year | 2018 |
| Number of pixels | 58 |
| Grayscales / Colors | 2 |
| Illuminant | rectangular LEDs |
| Power input | |
| Contact person | Arne Rossius |
| Project website | |
The SimpleClock is a 4-digit digital clock using an absolute minimum of components. The display consists of 58 red LEDs (2 per segment), connected to an 8-pin ATtiny13 microcontroller using a technique called "CharliePlexing Plus", explained in Tim's Blog.
The mains frequency is used as a time base, hence an AC-AC adapter (transformer) is required to power the clock. If a DC source is used, the time will stand still and the colon won't flash.
