Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: neopj3 on December 14, 2007, 07:51:19 AM
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what would be a couple of good flip flops to use with a 555 to make three leds flash in a sequencal order? while having a little lag time between each flask so that the lights will transition between each other. x-mas gift i'm making. thanks for in the insite.
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flips flops aka shoes?
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How about a counter IC?
For example, an 8 bit counter IC has 1 input (such as a 555 ouput), and there are 8 output pins that could each be hooked up to a resistor and LED. There are many types of counter IC's with different output types.
To get the time delay, you could put a capacitor in line with the output (after the resistor) and ground, where the capacitor value determines the delay.
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that's pretty much what I had in mind. my idea is to have one (a) light up, then the second (b), then soon after have a turn off and the cycle repeats to the third (c) and then back to a. kinda fading back and forth. however it looks like a long "blink" per led will be the best way. anyone know of a good timer IC? preferably something i can pick up at frys. thanks for the ya'll.