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.