The light chaser is a favourite electronic project for the amateur. Often purchased in kits, the light chaser is actually a very simple device.

The desired effect of the light chaser is to create a dazzling sequence of flashing LEDs. This is usually accomplished by clocking a CMOS counter, such as the 4017, with an astable multivibrator such as the 555. The LEDs are connected to the counter outputs, and arranged in a pleasing way. The LEDs flash in continuous sequence, creating a wonderful conversation piece.

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