21 Apr
2012
21 Apr
'12
12:41 p.m.
>> There is no Application jou can just build
out of a 555
Your applicaiton nbeeds several 555s, not one :-)
You can use them as an alarm system, scattering them upside-down
around the
fridge, for detecting when kids in bare feet sneak downstairs
for a midnight snack... ;-)
True, but LEGOs are much cheaper. :-)
I am nto totlally convinced of that, based on the prices that Lego and
555s seem to sell for,
I rememebr many years ago being in Maplin in Bristol when a lady asled
for 'a couple of your smallest chips, I don't care what they do'. It
turned out she was a sculptress (or some similar artist) and needed them
for that sort of work.
I can't remembr if 741s or 555s were cheaper at the time eitehr :-). I do
rememebr dgetting a large box of defective ICs sent to her from the lab,
though.
-tony