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Hi there
There are LED's available that already have the circuit inside them to blink.
These are easily found at car alarm installation shops..they are very common and easy to use.
Now if you want to make a circuit and have control over the blink rates etc , then you can either go with a NE555 timer chip ,but you will need about 10 other components to get that to work.
OR , you could use a LM3909 Led flasher chip , and that needs only 3 or 4 other parts to get it to run,,,it is very easy.
OR , you could , if you wanted to go nuts , program up a microprocessor or an micro-controller to do the job.
This last method is the most expensive and the most complicated , but at the same time , its very impressive.
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∙ 12y ago
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