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In lugnet.org.ca.rtltoronto, Vineet Honkan wrote:
> In other news, concerning my RCX controller, I did a few sketches yesterday
> concerning the pneumatics and the touch sensors. As was mentioned earlier, I
> will be using four touch sensors, but here I reached an impasse. I was reading
> the Ferrari brothers' "Mindstorms" book the a little while ago, reading up on
> sensor setup, when I read about OR configs. and AND configs. My controller will
> be using an OR config.
>
> Now my question is, have I set it up correctly for an OR configuration? I used
> four t. sensors, with four seperate electric cables attached, and then attached
> the free end of the cables to a 1x8 electric plate. Underneath the plate I
> attached three more electric cables, and then attached the other ends to the
> input ports of the RCX. Is this a correct setup for an OR configuration? Or is
> this one setup of an AND configuration? Please let me know. (If this isn't
> clear, I will bring my schematics to our next meeting).
Vineet,
This sounds like a very good question that DOES pertain to groups like this one.
Congrads for being On-Topic.
It sounds like what you're describing IS an or gate, BUT, when you press any of
the four buttons, it will trigger ALL THREE inputs. So, there will be no way to
tell which button you've pressed, and you'll get the same reading on all the
inputs.
I suspect what you really want to do is hook a single touch sensor to port 1,
another touch sensor to port 2. Then, on the third port, find a way to connect
two touch sensors in an OR configuration, but you'll still need to tell which
one is being pressed.
One way to do that, is to connect a light between one touch sensor and the RCX
(while the other is connected directly.)
This way, when you press one touch sensor, the light will come on (dimly).
You should configure this port as a "light" sensor. I'm not sure what the
readings will be, but the reading for the touch sensor with the light should be
lower than the other touch sensor.
Good question.
On-topic
Steve
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Message has 2 Replies:
 | | Re: joystick help
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| Steve- This is a bad habit of mine, not finishing my thoughts. My full question is, You've heard how I have connected the touch sensors to the input ports. Likewise, I did the same to connect four motors to the output ports. My problem is, I want it (...) (21 years ago, 26-Aug-03, to lugnet.org.ca.rtltoronto)
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Message is in Reply To:
| | joystick help
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| Hello guys- I realize that I can sometimes get way off topic (BTW thanks for pointing that out Larry). In other news, concerning my RCX controller, I did a few sketches yesterday concerning the pneumatics and the touch sensors. As was mentioned (...) (21 years ago, 26-Aug-03, to lugnet.org.ca.rtltoronto)
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