Last night I was asked to demo the board for Guelph’s technical community. Other than the fact that it kept freezing it went very well. Check out these photos from @kevinleehansen.

Me being introduced with the questions; Who are you? What are you demoing? What do you hope to get out of it? and What should the audience get out of it?

Sign froze while I spoke, but it did get stuck on the world “Quality.” Couldn’t have planned that if I tried.

About the freezing: It seems to be interference that causes the sign to freeze. The program “making” the pixels continues to run. I actually thought of last night, resetting the COM port before each cycle that way if there was lots of power/data interference around it would be a little bit more robust and should reset on it’s own. Also instead of the cables all piled into the box below a little more organization would probably help. (Keeping the power cables away from the TWI wires.)

Thanks to all for a great night and thanks to the roundup for the photos.

Jim - 2010-01-28 17:34:09
I should have asked you about how you were wiring this thing in terms of signal shielding and the like. I used to due a lot of field signal wiring at work.

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