Recent content by gregf

  1. G

    WS2801 strand maximum length?

    Wow, Henri that sounds awesome. Please post some pics! Are you using a microcontroller to drive the data and clock? If so, what clock speed are you using? I figured out that my problem (after trying more power injection :) ) was due to trying to send data at 2Mhz. If I drop the speed to 1Mhz...
  2. G

    WS2801 strand maximum length?

    Thanks for the suggestions. I will try out some more power injection every 50 or so leds and report back. cheers, Greg
  3. G

    WS2801 strand maximum length?

    Hi All, Is there a maximum number of pixels for data transfer in 5V WS2801 strands? I didn't think there was but... I have a 550 pixel-strand that I soldered together and am reinjecting power at pixel 256 and pixel 384. A simple test of attempting to display red on every pixel works fine (with...
  4. G

    RGB strands with the 9813 IC

    Thanks, that helps alot. I've emailed Ray but haven't heard back yet. I found a link to this description of the protocol, which appears relevant: http://www.seeedstudio.com/wiki/Grove_-_Chainable_RGB_LED
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    RGB strands with the 9813 IC

    Good question. I'm doing all Arduino stuff so hopefully I can find a library somewhere that helps or I'll have to decipher the datasheet. -Greg
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    RGB strands with the 9813 IC

    Hi All, I'm new to this site so please go easy on me if I break some protocols. :) I'm interested in buying a large number of stranded pixels for a large full-wall matrix I'm planning to make. I'm hoping I can make a 16x32 display with 3" between the pixels diffused by some sort of frosted...
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