Using a motor, some LEDs, a battery, and a few other things, it is possible to create an amazing device that serves no purpose aside from decoration and learning. LEDs on a small disc will light sequentially as a motor spins. This is a fine alternative, if I might say, if you do not wish to go through the process of buying/building, and programming a microcontroller.

Step 1: Parts

Part list:
K'nex (can be substituted with any other structure-building thing)
Wire (Hookup, and stranded wire)
Cardboard, Plastic, or similar
Aluminum Foil (Conductive ink of some kind is a preferable substitute. I didn't have any.)
Wood or something to form a base
Dear sir, <br>I need a simple circuit with a single LED which will blink at a rate of 10 times per second. <br>But it will blink for three different times duration with three different interval. For example; <br> <br>-------------------- (20 times blink in 2 seconds, then 2 Second gap/pause) <br>---------- (10 times blink in 1 second, then 1 Second gap/pause) <br>----- (5 times blink in 0.5 second, then 0.5 second gap/pause) <br>then the process is repeated continuously until disconnecting from power.
I would suggest using a microcontroller such as an Arduino for that kind of project. Without a microcontroller, I can't think of a way to implement that without a very complex circuit.
Sorry about the blurry pictures. My camera isn't very good.
awesome 2 get the LED out contestants in knex section. I got a circuit kit once (awesome snap circuit set) i wasnt much of a fan with the led light..
interesting. you should put knex as a key word.

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