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| prism_29 Quote | Reply | | random sequenced LEDs posted on: 3/18/2006 8:30:30 AM Hello all. I need help with a project I am designing. First let me qualify myself... I am a RADAR Tech and have 5 years experience in the electronics field. I have been speciallized in RADAR theory for so long I havn't even given much thought to anything that wasn't directly related to the systems I work on, and as such have forgotten exactly how to configure, say a 555 timer, although I do have the resources to find out such things. Also I have never really designed my own circuit which creates a gap. I beleive that I know electronics but there is a big difference between identifying a faulty component and knowing when to use a 1uf cap instead of a .1uf cap. That is why I am here to seek help. Here is my project concept; My 5-year old son is a huge Spiderman fan. I am going to make him a new headboard for his bedroom in the shape of a building. It is going to be a LARGE headboard that will attach to the wall and measures 90" x 42". I want to cut out windows that are 1"x1.5" all over. There will be 232 of them. The carpentry part will be tedious but I am patient. In the windows I want to have LEDs to turning on and off to simulate people coming and going into the "rooms" of the building. So my objective is this....I want between 50-232 LEDs to turn on and off randomly. I have considered using a BCD and a 7 segment decoder to drive the lights. Instead of a 7 segment display I would use 7 LEDs placed randomly in the windows. I could cascade them to use as many as I want but I think it would look a little off if too many LEDs switched at exactly the same time. Also if I cascaded them, there would be an obvious pattern and I am afraid that it wouldn't look random enough. Any help would be highly appreciated. Chris |
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theguy
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random sequenced LEDs
replied on: 5/27/2006 10:34:29 PM that's tough job, i can not figure out, better to consult an engineer |
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