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Pinball LED Display – Almost done

by Tom on Oct.21, 2010, under Project Pinball

If your reading this because you received an email notification. Hahaha You can never escape from my nerdisms. Otherwise welcome to part2 of my led screen that will eventually end up as the screen for my pinball machine.

Since my last post, the two screens have expanded to six. I did have a few problems at first because running six screens requires 2304 bits of data (that’s 1s and 0s for you primitives out there ;-) ) to be sent via one wire. The result: slow as a fat kid on crutches painfully slow.

But never fear as there was a solution! Making use of the extra cores (this microcontroller has 8 processors) I can split up the processing to reduce the amount of data sent at one time. 2304 bits split using 6 wires sending 384 bits per wire. Did you get all that?? Good lets continue.

I also borrowed code to process lines and circles. Next step is displaying bitmap graphics and animations. And maybe glue the screens together to make it all neat and tidy. Got to make it look professional!!

Video shows my child like voice and a line of text scrolling vertically and horizontally while drawing lines and circles. It’s works really well. Let me know what you think by leaving a comment below :grin:

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