[vcf-midatlantic] VCFed @ World Maker Faire this weekend
evan at snarc.net
Thu Sep 29 02:21:06 EDT 2016
Jeff B., Corey, Mouse, and yours truly are staffing the VCFed booth at
World Maker Faire this weekend. They said we're in a tent this year.
That is all I know for now, location-wise.
Our theme is the same as at HOPE -- vintage computer robots.
Jeff is showing an improved version of his Capsella robot controlled by
a BASIC program on a Commodore 64. He has many more parts available now
than he did for HOPE.
I'm showing a Lego robot powered by a LOGO program on an Apple //e, vs.
at HOPE my Lego demonstration used BASIC on a Compaq 386 luggable (in
the form of a Network General Sniffer).
By coincidence, Jeff's robot and mine are both car-like and they're both
around the same size. So let me just say:
MY LEGOBOT CAN KICK BRACE'S CAPSELLABOT'S BUTT. :)
Here's mine: http://vcfed.org/evan/legobot.jpg
I figured a black frame, red racing stripe, and huge rear spoiler all
give it maker-cred.
One motor controls forward/backward, another motor (via the exposed
chain drive up front on the left side of your screen) controls steering,
there is a touch/bump sensor on front, a light sensor in back, and
working head/tail lights.
I need to put a little Lego dude and steering wheel in the cockpit!
Of course, the point of this is to show people (mostly children) that
Lego computerized robotics are not a modern invention, but in fact
existed 30 years ago. LOGO works like BASIC -- you can type a program
and run it instantly (no compiling) or type commands directly. But in
most ways it's even more basic than BASIC. Instead of FOR-NEXT loops you
have REPEAT; instead of GOSUB you have LIST-TO-RUN; there aren't line
numbers; and I'm trying to understand their oddly formatted IF-THEN
method (which is also called something else; I forget what right now).
Maybe I'll disable the front bump sensor and program the 'bot to go full
speed into BraceBot. :)
All in good fun, of course.
Hope to see many of you this weekend.
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