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Electronic touch sensitive panels Answered

I am somewhat new to electronics and want to make a set of touch sensitive panels that light up quickly and dim slower.I plan on puting them right next to each other so that a can drag my finger across them.I was thinking to build a circuit for each panel, That lights an led upon touch, so the parts for the circuit need to be cheaper. I also need an opaque or clear material that you can see an led light up from under and that is conductive. If you've got any ideas then please share them.

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steveastrouk (author)2012-01-07

There are some nice chips that can handle most of the work for you, but they aren't for beginners.

Steve

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Jgniklu (author)steveastrouk2012-01-07

Do these chips require programing?

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steveastrouk (author)Jgniklu2012-01-07

They need a computer to talk to them, to read the switch settings.

Steve

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Jgniklu (author)steveastrouk2012-01-07

so is the best way to do this is to program

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Jgniklu (author)steveastrouk2012-01-07

sorry, I assumed when you said they need a computer to talk to them you meant programing. What did you mean? And what would i need to do it?

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steveastrouk (author)Jgniklu2012-01-07

YOu need the chips and a processor to interrogate them and talk to the light panels, then you need to write code to co-ordinate them. The chips will need configuration data uploading to them, and reading periodically to find out what lights need controlling.

Steve

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Jgniklu (author)steveastrouk2012-01-07

That is not in my skill range, could the circuit on the left side of this website (http://www.555-timer-circuits.com/touch-switch.html) be changed to turn
on the first time you touch it and then turn of the second time you touch it
I want to have to only touch one plate still, other wise I would use the circuit on the righT

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steveastrouk (author)Jgniklu2012-01-07

Put a J-K flip-flop on the output of the 555. Tie J+K high, put the output of the 555 to the clock pin.

Steve

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Jgniklu (author)steveastrouk2012-01-07

thanks for the help i will try it out

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rickharris (author)2012-01-07

Your almost certainly going to need some kind of processing power (not essentially but it will turn out to be the most productive way to do this)

This will require a steep learning curve - I strongly suggest you read through the PDF files at

http://www.picaxe.com/docs/picaxe_manual1.pdf

http://www.picaxe.com/docs/picaxe_manual2.pdf

http://www.picaxe.com/docs/picaxe_manual3.pdf

Then consider how your going to attack this problem.

Your lack of design and build experience with electronics suggests you should try something simple and build on that say a single LED that you can touch to light and then get it to dim slow;y.

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Jgniklu (author)rickharris2012-01-07

I would prefer not to program that is definitely not my level

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