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I ordered my Handy Board today, and am going to install it in
an ice cream bucket named "BucketBot." (Better name? Please?)
Well I know that I'll be hooking up my GP2D12 to it, and a sonar
module (Polaroid 6500 hacked out of a Polaroid Sun 660 One
Step), but I have a few questions:
Does ANYONE know of a good way to make cheap encoders?
I have wheels hooked onto servo motors with no electronics
(Use a L293D) and need encoders. Should I use a Hall Effect
sensor for this and a magnet or two per wheel, or an optical
thingie, or what? I really need this sensor, and have NO clue
whatsoever about how to implement it.
Is there anyway to modify the Handy to take a pre-regulated
+5v supply? I have a couple LM2596T-5.0 5Volt 3A Simple
Switcher regulators (Order today! They're great! Get samples
at www.national.com and a 100uf cap and a 66uh - 100uh
inductor, and you're ready to go!) and have had bad luck with
the 7805 regulators (which happens to be on the handy...).
I MELTED a 7805 once, it got SOFT to the prodding sharp
object and ceased to provide 5 volts. And I was running only
a HC11, L293D (Logic only, not motor power), Max232, and
a HS300 servo. Thanks to that, I tried hooking up my servo
to the +12v rail, and poof... no more servo, even screwed up
the motor (doesn't turn with any voltage now - didnt think
that possible). Well, enough rambling, is it possible? I don't
really want to cut traces or anything (besides the pullups on
the analog input, and I will probably end up desoldering that
whole resistor network).
What pyro sensor would you recommend for a fire-fighting bot?
I want to cruise by a room, point the sensor at it, and see whether
or not the candle's in there. One sensor pack on Acroname said
that it could do that, but I can't remember what it's called, and
was wondering if there were any suggestions. I am NOT going
with the Eltec, it just won't work for me.
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Message has 1 Reply:
 | | Re: Got my Handy, now what?
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| (...) The The Handy Board Technical Reference has encoder information for you. The ones I use are the QRB1114, and they are just two or three dollars each. The Reference shows you how to wire them. See (URL) encoders mentioned provide an analog (...) (24 years ago, 2-Jun-00, to lugnet.robotics.handyboard)
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