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Subject: 
Re: tuch sensitive sensor
Newsgroups: 
lugnet.robotics
Date: 
Mon, 22 Dec 2003 17:34:29 GMT
Viewed: 
983 times
  
"Jona" <jona@24tooth.com> wrote in message news:HqB44J.204J@lugnet.com...
In lugnet.robotics, Øyvind Steinnes wrote:
<SNIP>
There are many aplication you can use this type of sensor for. Like a • robot
that should grip something, and you dont want it to grip to hard. Use • those
tuchsensitive sensors on the "fingertips" on the robotic arm and it can
"feel" when the fingers are tuching something and know how hard its grip • is.
Another aplication is a piano. Tuchsensitve sensor under each keys, and • the
piano knows how hard (fast) you have tuched the keys and kan make the • volume
of the tones acording to that.

I've looked around on websites but cant find any sensor like this.
Is there one already out there someplace? Or maybe someone is up to the • task
to make some? Do this sounds intresting at all?


Regards
Øyvind Steinnes
http://www.brickshelf.com/cgi-bin/gallery.cgi?m=Phoenix

Correct me if I am wrong, but aren't the buttons on the PlayStation 2 • controler
all analog? They seem to do exactly what you are talking about, but maybe • there
is some better processing going "on under the hood"? I wonder if you can • pick up
an old controller off of e-bay and get at its guts?

Jona
LEGO Robotics Group of Ann Arbor - http://www.24tooth.com

Good idea!
The button on the PlayStation 2 controller is analog, but I do not know how
thay have made it that way. It could be a variable resistor that are under
those button. Another way is to determine how fast you are pushing the
button by taking the time from one switch activates to another switch.

What I was looking for was a microsize analog button. In the size of a 2x3
brick (or smaller if it can be done). Either prefinished inside a brick or I
maybe have to make one myself.



Regards
Øyvind Steinnes



Message has 1 Reply:
  Re: touch sensitive sensor
 
(...) The touch sensors that come in the RIS set already work as you describe, and are even about the size of a 2x3 brick. The touch sensor has a variable resistance that changes as more force is applied to the button. You just have to read the raw (...) (21 years ago, 22-Dec-03, to lugnet.robotics)

Message is in Reply To:
  Re: tuch sensitive sensor
 
In lugnet.robotics, Øyvind Steinnes wrote: <SNIP> (...) all analog? They seem to do exactly what you are talking about, but maybe there is some better processing going "on under the hood"? I wonder if you can pick up an old controller off of e-bay (...) (21 years ago, 22-Dec-03, to lugnet.robotics)

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