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geemo88's photostream
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Some diagrams of the Smartboard Projector experiments
Swapping video signals and control pins on the DVI connection using my three DVI breakout boards, three...
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: Video links
Showing activity on video links 1 and 2 and analog green.
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: DDC Clock/Data
DDC clock and DDC data stream measured at +5v, but they don't seem to follow the I2C standard as I was expecting.
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: During Startup 3/3
Now video link 2 shows activity at +3.3v as well as the analog red pin.
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: During Startup 2/3
TMDS link 1 shows some activity during startup in the +3.3v range.
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: During Startup 1/3
There are patterns on TMDS data shields 2/4, 0/5, and the clock shield at the 0.00v threshold.
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: Standby
It would seem that while in standby mode, some of the the TMDS data pins and the DDC clock and data pins are held above +2.0v.
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 logic analysis: Baseline
Smartboard Unifi 35 analog horizontal sync
When in standby mode: 0v constant When powered on: 0v constant for 0.93 seconds every second then a brief flash for 0.07 seconds of this waveform
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 analog red channel
When in standby mode: 0v constant When powered on: +3.3v constant
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 analog green channel
When in standby mode: +5v constant When powered on: +5v constant for 0.93 seconds every second then a...
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Uploaded on Jan 8, 2012
Smartboard Unifi 35 analog blue channel
When in standby mode: +5v constant When powered on: +5v constant for 0.93 seconds every second then a...
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Uploaded on Jan 8, 2012
Bane of my existence
This is the error screen you get with the Smartboard 600i when the whiteboard part is not plugged in. ...
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Uploaded on Jan 7, 2012
Logic Analyzer
Here's me trying to determine what the projector and computer are saying to each other using a 34-channel...
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Uploaded on Jan 7, 2012
Logic Analyzer
A different shot of the logic analyzer tapped into my DVI breakout board. I was trying to read 29 pins...
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Uploaded on Jan 7, 2012
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