You can use software or hardware (like almost any other circuit).Unfortunately I've forgotten most of my electronics. You'll be working with some kind of shift register. Look up things like Johnson counters, ring counters, sequential logic, etc. You might even check combinational logic for a semi-random affect.You will need some sort of clock, like an oscillator, frequency generator, or something simple like a "triple nickle" (search 555 timer).You can use simple RC networks for short time periods like 15 minutes. For long term timing up to 4-5 hours might be a little trickier. I've forgotten most of this stuff and can't think of anything off the top of my head for long term timing other than a processor or a counter combined with a 555.
Try posting on www.discovercircuits.com or basicelectronics.yuku.comI understand how you want to be helped. Most people come here for relationship problems. I wish I can help you but these links are the only one who can help you. I hope you success on your project.
Lighting LEDs isn't difficult. Controlling them independently in some sort of patterns is. It's complex, but doable.Check out some of the tutorials on instructables: link
It's more complex then you think.Does this help? link
I think fairly complicated, and perhaps quite bulky - it probably wouldn't fit inside a box the size of a Rubik's cube, for example (esp. if it needs a battery too). Like Aercz says, this probably isn't really the best place to ask.The easy alternative would be to just use a programmable controller, like a Mini Maestro / Arduino - but that might be considered cheating...
Not that complicated. Just look up LED sequencer circuits. It's like a timer, a counter, a few resistors, a hand full of LEDs, a capacitor, etc. For increasing and decreasing speed I'm guessing you're going to need and oscillator to control the speed of the clock. Search google for circuits and kits I'm sure you can find something close to what you want to play with on a bread board.
How complex would this be? (basic electronics)
How complicated a circuit would you need for this to work? A simple, hollow cube, each side with about 25 LEDS on it (looking a little like a... Show More
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