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Legacy Personal Blogs Miscellaneous notes on the DLP-2000 projector
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  • Author Author: packetgeek
  • Date Created: 17 Mar 2018 1:22 PM Date Created
  • Views 625 views
  • Likes 1 like
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Miscellaneous notes on the DLP-2000 projector

packetgeek
packetgeek
17 Mar 2018

For now, these are mostly reminders to myself.  I'll incorporate them into my write-up in the coming week.

 

In no partciular order:

  • The device comes assembled, mounted on top of the Beagle Bone Black (BBB).  Although it appears to need it, disassembly does not require any tools.  It's just pressed into the GPIO connectors (i.e., they just pry apart).  If you attempt to use a screwdriver to remove the screws for the stand-offs, you're likely to strip one of them as the longer ones appear to be machine tightened.
  • The BBB has marginal processing power and cannot support some on-the-fly transcoding needs.  Because the display provides a resolution that is no longer considered standard for most videos, it may be worthwhile to transcode your videos ahead of time or (as I've done) connect the DLP to a more capable processor.
  • The Tickr utility works quite nicely with the DLP but you'll need to heavily tweak the config file for ticker.
  • There's not much good documentation on connecting the DLP to a Raspberry Pi, even though it's advertised that way.  The most informative info is on the TI web site.
  • There's no good way to turn off the graphics engine (to save wear and tear on the LEDs).  However, there appears to be a means of blanking the display via software.  I still need to research why but the following appears to work:
    sudo i2cset -y 2 0x1b 0x0c 0x00 0x00 0x00 0x00 i
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