..


Since I dug my PIC stuff back out the other day, I've been tinkering around
with something I've wanted to do for a while. It's sort of a variation on
the propellor clock but with a pendulum, so back and forth not around. I'm
able to strobe out messages on a column of LEDs, but I'm not sure a pendulum
(even a short one) is going to swing fast enough to give a very readable
display. I may have to switch to a ceiling fan version. ;-)



It works if the size is small, you can buy these ready made at Target
and similar stores. They use an electromagnet to oscillate the pendulum
which is about 6" long and very light weight.