Turning a light on and off with momentary switch

Chris W · 2005-02-16T23:19:19+00:00

I want a circuit that will turn a light on with the press of a momentary switch and then turn it back off when the momentary switch is hit again. I had heard that a flip flop might be the way to go. After some reading, I have found that a flip flop is a much more complex device than I was lead to believe. I think a flip flop would some how do the job, but it is going to take some more reading before I figure out how. If you have been reading some of my other posts, you know that I want to turn on and off more than one light, so I need several of these circuits, preferably using the minimum number of components. Another option I would like to explore is to turn the light on and off using 2 inputs. Say we have in put A and B. If input B is high, when input A goes high, turn the light on, or leave it on. If input B is low, when input A goes hight, turn the light off, or leave it off.-- Chris WGift Giving Made EasyGet the gifts you want & give the gifts they want"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety." -- Benjamin Franklin, 1759 Historical Review of Pennsylvania

Feb 16, 2005 44 Replies

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wrongaddress 21 years ago

The software is an old DOS program called "Colorix VGA Paint" 1989.

It's similar to Windows "Paint" with more features. It's easy to copy and paste, and move things around. Windows "Paint" can do the same thing, but has limited editing features.

-Bill

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wrongaddress 21 years ago

Yes, it runs in a DOS window on Win 95,98,2000 and Xp. But I forgot to mention the Colorix program produces .GIF files directly while Windows Paint only produces .BMP files which need conversion. There are utilities to convert formats, but it's nice to get the finished drawing in the right format without conversion problems.

The first few drawings took some time, but as the library grew, I can usually find a drawing close to what I need, start with that, and just move things around to create a new drawing.

-Bill

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Peter Michelson 21 years ago

Impressive. Because of the high quality, I didn't realize that you drew them manually. I thought they were created by an electronics CAD program.

Does Colorix VGA Paint run in a DOS window on a pentium class machine?

Regards, Peter

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Robert Monsen 21 years ago

FYI, Paint under XP can save files as GIF, TIFF, JPG, and PNG, as well as various levels of bitmap. You need to change the popup menu on the saveas dialog to indicate the proper format.

Regards, Robert Monsen "Your Highness, I have no need of this hypothesis." - Pierre Laplace (1749-1827), to Napoleon, on why his works on celestial mechanics make no mention of God.

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Michael A. Terrell 21 years ago

It works the same for ME as well.

Beware of those who post from srvinet.com! Michael A. Terrell Central Florida

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