Subject:
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RE: Using un`Lego sensors
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 28 Jan 2002 13:20:52 GMT
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Original-From:
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Marco Correia <marco@soporcelNOMORESPAM.pt>
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Reply-To:
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<marco@soporcel+SayNoToSpam+.pt>
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Viewed:
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592 times
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Mike Reddy said:
> Alternatively, there are a couple of web sites that offer lego compatible
> sensors (e.g. ultrasonic disance sensors) if you do a search.
hmmm... I did a search once, a "long" time ago, only to find DIY schematics.
It's time to do a search again :).
Maybe I'll find some already-built'n'ready-to-sell distance sensors "shop".
> Passive sensors, such as light sensitive diodes would need careful
> programming so that you could interpret the raw value, etc. This might
> require NQC or LegOS, etc. Switches are fairly safe to build yourself.
I have two small rotative (circular) potenciometer (variable resistance)
from some old headphones, that I'm thinking of using as an angle sensor. It
won't measure 360º but it'll be close. I only don't know how accurate will
be (or if it'll even work) and what range of raw values will have.
...and that will sum up my incursion on the "custom" sensors world, so far
:)
> As for communicating with the Cybot, I am hoping that the Infra Red link • that
> the magazine has mentioned might be hackable...RCX <-> Cybot?
It would be great if Cybot's IR compatible with RCX and the protocol's
within the RCX comms capabilities and we could access Cybot's sensor data
in-real-time, as well as send direct(immediate) commands, etc...
Anyway, thxs for your reply, Mike :)
mc.
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Message has 2 Replies:
 | | Re: Using un`Lego sensors
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| (...) Try these sites out for pre-built units: (URL) good start for build-your-own is (URL) you find what you're looking for! Robert Templeton (22 years ago, 28-Jan-02, to lugnet.robotics)
| | | Re: Using un`Lego sensors
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| (...) For what it's worth, there is another type of high-accuracy potentiometer which is used primarily in instrumentation. They are usually used with vernier dials to set accurate values. Their advantage is that, unlike most basic, common (...) (22 years ago, 30-Jan-02, to lugnet.robotics)
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Message is in Reply To:
| | Re: Using un`Lego sensors
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| You said: (...) I quite agree, but this might be a fairly safe first step... (...) All the circuit boards have been cleverly designed to allow interfacing between the sensors and the processor boards. The Lego CPU (aka the RCX) uses an active sensor (...) (22 years ago, 27-Jan-02, to lugnet.robotics)
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