Vermes
Advanced Member level 4
The clock:
- 17 green mat LEDs – display
- Atmega – driver
17 LEDs were put in 3 columns and multiplex controlled with the frequency of more than 1,3kHz to prevent from flickering during the intensive moving the clock.
Atmega8 supports the display, counts the time (watch quartz 32768 Hz that provides high accuracy with 27pF capacitors) and four buttons to set hours.
Video presenting the clock:
Pictures:
PCB and scheme:
Link to original thread (useful attachment) – Zegar binarny by Hubert Fabieński