RGB Pixel Clock Part 1
When I first stumbled across the Equinox Clock by Bram Knaapen (http://www.bramknaapen.com/?p=549) I was fascinated by this clock.
Some time later I found some cheap RGB LED pixels on Ebay (50 pixels for 30$ with build in controller WS2811). I ordered one string of 50 LEDs and tested how to control them. Luckily there was already an Arduino library around called FastSPI (http://code.google.com/p/fastspi/). It did not directly support that chip but the protocol for the TM1804 worked perfectly.
Then I was thinking for some time how to mount the LEDs to create a clock like the equinox clock. After thinking about some possibilities and where to get the tools / materials for them I decided to go for some laser cutting service.
The fingers of this design help you to mount the LEDs to have them evenly spaced and pointing in the right direction. It also provides the holes for mounting the Arduino. Here is the design (dxf): clock_base380
and here are some pictures of the cutted design:
[...] RGB Pixel Clock Part 1 [...]
[...] RGB Pixel Clock Part 1 [...]
So you used a 50 LED strip, but your design uses 60 LED’s, how did you end up connecting that ?
They came in pieces with 2 times 20 pixels and one strand of 10 pixels. But you can cut at any point between them.
yes but 2×20=40 +10=50
so you still only have 50 led’s did you buy another 10 led’s to get to 60 led’s or what?
its confusing did you actually mean you bought a pack of 60 led’s and there was 3 strands of 20?
it’s very easy: I bought two sets of 50 pixels each giving me 100 pixels with 4 x 20 pixels and 2 x 10 pixels. Then I was using three of the 20 pixel strands. For fun or other projects I’m left now with 40 pixels. Actually it’s only 38 pixels as 2 of them had to suffer under my curiosity, when I remove the protection to access the chip underneath.
Very nicely done, Tobias
That looks awesome! Can you please provide a link to the seller of the leds on ebay? i did not find any with a similar price …
Hi Andre,
If you search for “rgb led pixel” you can find a lot of them. Most of the sellers are from china, hong kong, … so you maybe need to search at ebay.com. Another supplier would be Adafruit.
[...] site http://www.tobiscorner.floery.net tem todos os passos necessários para construir um relógio que é capaz de impressionar até os [...]