Bob-clock
Project Description
This project is a small and very fun demonstration of multiplexing. The clock shows minutes, hours, and seconds by lighting its respective LED color. There is a great back-story to this project, including its namesake, spanning a few years; read that here. The project files are available for download from the wiki.
v2.2 Development
The clock’s creator (Mikkel of Denmark) and Lumisense have teamed up! We modified the original design to provide kits, and more features such as additional interfaces and animation capability.
Features and Specs
- - Sixty (60) bi-color LEDs, simulating hours, minutes, seconds
- - ATMega324, 4515 multiplexer, and various on-board interfaces
- - Multiplexed control by LED groups of seven and eight
Links
- Buy a Bob-clock kit!
- Project files and downloads
- Project back-story
