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 ]
Sunčani sat sa LEDicama
Link
Comments (1)
similar content
- LED and acrylic holiday cards (13-12-2008) [@News]
- Word Clock - published (16-09-2012) [@News]
- Nixie clock - Millivolt Meter Hack (26-10-2011) [@News]
- Warm Tube Clock v2 - User pictures (11-08-2011) [@News]
- SPI interfaced large 7-seg led display (07-10-2009) [@News]
- Small binary clock (12-10-2009) [@News]
- Nixie clock in a model train (11-08-2010) [@News]
- LED flickering with Arduino (18-05-2009) [@News]
- Color-changing LED glowies (06-10-2009) [@News]
- Electronic Temperature-Controlled Relay (04-08-2009) [@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.
