drew, and others


i tried making a maxibug, but it was a bit hairy, so i
stripped it down a bit. (my apologies, i dont have the
ability to make .gifs, so, you are stuck with a .jpg)

ive used a zener diode and a 4148 in place of six
4148s. then i removed the reverse function and cut
down the inverter drivers for the motors and changed
the biasing(?) resister to 1M rather than the posted
1K. what you get is a robot which starts out
photophobic, then when the voltage drops (around 2.5v)
it turns around and heads towards the light. all on
one chip!

the size of the zener and cap should be modified to
suit. i think solarizing might be a little difficult,
but possible.

I tried the same setup with the 240(with an extra
inverter per motor) and 7404, but the 74hc14 seems to
work best.

any suggestions?
john-isaac

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