APR10
Sundial LED clock
Here is a very interesting concept of indoors sundial clock. A sundial is a device that measures time by the position of the Sun. Since indoors we don't get the Sun to cast a proper shadow for these purposes, it can be replaced with, yes, good old LEDs.
This shadow clock can show all three "hands"; hours just like a real sundial clock, minutes and seconds. Each shadow, or hand, is cast from a different light source - a ring, and each ring is of a different color (RGB). So, there are three rings, each having 12 LEDs (36 LEDs in total) and it is all multiplexed and controlled with AVR microcontroller.
There will probably be a kit of this cool clock soon, so check it out!
© Evil Mad Scientist
[ Source: Evil Mad Scientist ]
similar content
- Rotating LED display - POV (16-12-2008) [@News]
- LED blinker for toys (20-02-2004) [@Schematics/Optics]
- Vibrobot Socbot - remote controlled micro robot (11-01-2009) [@News]
- Interfacing LED matrix to Arduino (03-07-2009) [@News]
- Nixie Tube Clock - Amy Time! (17-01-2014) [@News]
- Alarm clock with accelerometer and propeller chip (30-09-2011) [@News]
- Small binary clock (12-10-2009) [@News]
- Warm Tube Clock v1 - User pictures (06-05-2011) [@News]
- Remote controlled basket ball (06-02-2009) [@News]
- POV Propeller Clock Build (23-08-2010) [@News]
add comment
Please log-in!
You can log-in on forum link: Login page. After logging-in, return to this page and click refresh in your browser.