Driver to drive?

[Rolavine]

Subject: Timer/Control Circuit
From: wfoondirt@hotmail.com
Date: 1/11/05 9:49 PM Pacific Standard Time
Message-id: <1105508980.046159.303830@f14g2000cwb.googlegroups.com

Hello,
I'm looking for a little direction for a project. The workflow is
pretty straight forward. I have a pneumatic cylinder with 2 hall effect
switches. The order of events need to be as follows.
1.)trigger cylinder to extend
2.)start timer with switch A
3.) stop timer with switch B
4.)pause ~10 sec & output time
5.)trigger cylinder to retract
6.) start timer with switch B
7.) stop timer with switch A
8.) output time

The interval between switch A&B will be 2-10 sec and I would like it to
be accurate to .01s or better. In its simplist form I could trigger the
cylinder manually and read the output off of a array of 7 seg displays.
Idealy I would like to beable to output them to a .txt file on a pc so
I can import them into excel to beable to graph the output.

Now onto my questions.

I think I can handle the simple approach with a 555>counter>7 seg
driver, but I haven't been able to find anything reguarding the
accuracy of this method.

I've also though of interfacing though the parallel port of a pc and
doing all the functions via software, but I've seen alot of concerns
over accuracy of the clock in pc.

Yes, the clock stinks, only 18 increments a second, however you could time your

'waiting for the other switch to be made routine' for a long time, maybe a
million iterations, then find the time that took, and divide by iterations,
then simply keep track of the number of loops you go though waiting for the
switch. I've used this approach since the PC was made and it works very well.
Since you only need a .1 second accuracy this approach would work great, plus
you write your file directly from the program.

Rocky

 

[CBarn24050]

Subject: Timer/Control Circuit
From: wfoondirt@hotmail.com
Date: 12/01/2005 05:49 GMT Standard Time
Message-id: <1105508980.046159.303830@f14g2000cwb.googlegroups.com

Hello,
I'm looking for a little direction for a project. The workflow is
pretty straight forward. I have a pneumatic cylinder with 2 hall effect
switches. The order of events need to be as follows.
1.)trigger cylinder to extend
2.)start timer with switch A
3.) stop timer with switch B
4.)pause ~10 sec & output time
5.)trigger cylinder to retract
6.) start timer with switch B
7.) stop timer with switch A
8.) output time

This is an easy job for a simple micro to do.

Idealy I would like to beable to output them to a .txt file on a pc so
I can import them into excel to beable to graph the output.

This would be very hard to do with a 555.

I've also though of interfacing though the parallel port

No no no! use a serial port.

Allmost any micro will do this with very little effort, choose whatever
chip/language that takes your fancy.

 

[Rene Tschaggelar]

Rob Gaddi wrote:

Frank Bemelman wrote:

http://www.machinadynamica.com/machina27.htm

Get one while stock lasts...


Hey, look: http://www.machinadynamica.com/machina29.htm

They sell effective paperweights for your speaker cables. These'll be
great, I know mine are always getting blown around the room by my Vortex
9000 ceiling fan.

Looks great.
Mine are moving from the magnetic force of the induced fields.

Rene

 

[Rene Tschaggelar]

mrxtechnology@yahoo.com wrote:

This was my entry inti a contest held by the San Jose Mercury News in
Dec 1985. I have theoriginal hand written copies...and thr print out
from my PC Jr.

The Dream Machine
[snip]

Actally the only thing missing is the internet.

Rene

 

[Guy Macon]

WayneL wrote:

Hi

I am writting a paper and it is fround upon to include web
address or usenet ref. It need it to be a printed publication.

The fact that you are writing a paper and that papers require
references is irrelevant. The fact remains that the basic
assumption behind your paper (that ultrapure water with no
dissolved gasses is something that one is likely to find as
a contaminant of standard electrical equipment) is flawed.

I suggest that you write a paper analysing what happens when
boysenberry jam contaminates electrical equipment. That would
be far more likely, and the jam would stay jam long enough
for you to take a resistivity measurement.

You seem determined to ignore the above advice. Care to tell
us why?

 

[Rhyanon]

I like how they just keep responding, thus perpetuating the Xpost. They'd be
fine if they'd just stay down after getting kicked....

"Aunty Kreist" <Aunty_Kreist@satanickittens.net> wrote in message
news:34k0boF4ammucU1@individual.net...

"Randy McLaughlin" <randy@nospam.com> wrote in message
news:YpIEd.13754$6m6.8528@bignews1.bellsouth.net...
"Rhyanon" <pissoff@uberbitch.com> wrote in message
news:10u6kn1hudl3s35@corp.supernews.com...
snip

Please don't cross-post.

Randy



Have you sought treatment for that awful case of Stickuptimus Rectimus you
seem to exhibit?

 

[Daniel Haude]

On Tue, 11 Jan 2005 07:56:46 -0700,
Jim Thompson <thegreatone@example.com> wrote
in Msg. <mqp7u0h8jv5nt3qdf177935pg3ku01g0oi@4ax.com>

Quoting Daniel,

"Your government is just too damn stupid. Who would dare to cooperate
with a bunch of erratically lying lunatics lead by a ex-drug
addict..."

Ex-drug addict? Where in the hell did you get that hare-brained idea?
"W" had a drinking problem, recognized it at an early age, and quit
drinking altogether.

Drinking is a drug problem. An alcoholic is a drug addict with alcohol
being the drug. Getting rid of the drug problem makes the drug addict an
ex-drug addict.

..."converted to religious fundamentalism? One government that did so
was already voted out of office (Spain), let's see who follows."

The people of Spain are yellow, plain and simple. Throw a bomb and
they fold.

No. Their government tried to sell the 3/11 attack as ETA's doing --
hoping to instill some ETA fear in the Spanish population which has always
been a good boost for the popularity of the right-wingers. I.e., the
government lied about the background of a national catastrophe to get
re-elected. And deservedly got booted out.

Would they have got re-elected if they hadn't tried this stunt? Probably
not because 80% of all Spainards were against the Iraq war to begin with.

Throw us a bomb and we just get mad... we don't cower like EuroPeons.

Yeah, you start throwing bombs back a thousand times, and where does it
get you? Al-Quaida stronger than ever, bin Laden roaming free, and the
Iraq (which didn't have to do with any bombs thrown at the US, and didn't
have any to throw), courtesy of the US, finally turned into the terrorist
training camp the US had always tried to make it out as.

I think the main reason we haven't seen another terrorist act in the
USA is that the terrorists know full well that the result would be the
whole USA becoming a cohesive (and killer) unit. Think WWII.

I disagree. Attacks of the 9/11 scale, in foreign countries, require years
of clandestine, minute preparation. It's just not something you can pull
off in a week if you feel like it. Although we haven't seen any new attack
on US soil (yet), we can be sure that the number of people who'd be
willing to commit terrorist acts and give their lives for it has
increased, not decreased since the Afghanistan and Iraq raid.

As far as WWII is concerned -- the US wasn't much of a killer unit then.
They just dabbled in the war pretty late just to secure some stakes in
Europe. WWII was mainly won by the Soviets (with tremendous losses), with
some help from the British.

But the main problem withe the "war on terror", like the "war on drugs",
is that you don't know whom to attack. Nuke every Islamistic country on
Earth and you'll have the entire remaining world against you. Nuke them,
too, and enjoy peace in nuclear winter. Is that how you would solve the
problem?

The "War on terror" is just a marketing buzz word conjured up by a
clueless gang of leaders. There's no concept behind it, as has been
thoroughly demonstrated in the past couple of years.

--Daniel

 

[mc]

That's not far short of the state of the art in 1985 if you had enough
money.

<mrxtechnology@yahoo.com> wrote in message
news:1105513902.454910.160860@z14g2000cwz.googlegroups.com...

This was my entry inti a contest held by the San Jose Mercury News in
Dec 1985. I have theoriginal hand written copies...and thr print out
from my PC Jr.



The Dream Machine
My dream machine would consist of a workststion with a full color 19"
flat panel display with a megapixel resolution. This panel could be
tilted and moved to mamy positions., yet would telescope neatly away in
to the desk when not in use. The processor unit, tucked away in desk
drawer, would be no longer than a shoebox, but would have the power of
a VAX 8600. It would be linked via fiber optic cable to a large
external database that would contain software, periodicals,
films,reference materials, books, educational and instructional videos,
and other information for which there was a demand. Multiple windows
would allow several teleconference sites to be displayed in real time,
while applications programs, say a spreadsheet and database, were
running in other windows. Input would bew by voice recognition,
wireless mouse, or keyboard.
The Dream Machine would be able to run 99% of all software ever
written and would become an industry standard. Capable of displaying
broadcast quality, real time video in as many as eight windows, the
dream machine would be more picture and motion oriented than today's
machines that tend to produce static displays of text and pixels. For
example, an architect could view a conceptual drawing of a building in
one window while incorporating changes to the blueprints in another
window. These changes would be instantly incorporated in to the
conceptual picture, showing how these changes affect the appearance of
the building.
The Dream Machine would be able to receive and record data at a very
high speed on the removable 3.5 in laser disk. For instance, one could
record a 30 second educational video in 30 seconds by using the fiber
optic link and digital compression. Data transfers such as this could
take place in "off peak" hours for viewing at a later time.
A home version would have a 40" "hang on the wall" display and be
networked to the office unit, but it would have access to cable TV and
recreational software. Video tapes would become obsolete as all
released films and television shows would be available through the
database. Windowing capability would enable the user to monitor
several sporting events while teleconferencing with a friend in one of
the other available windows.
A machine such as this should satisfy almost everyone's need for data
processing, information retrieval, communications, and home
entertainment.



Mark Maupin
December 31, 1985

 

[Daniel Haude]

On Wed, 12 Jan 2005 08:01:05 -0700,
Jim Thompson <thegreatone@example.com> wrote
in Msg. <gleau015jvdhsnl9br19shrdtlfq5lrdjd@4ax.com>

Believe whatever propaganda you wish...

Is that all you can supply as a counter-argument?

--Daniel

 

[John Larkin]

On 12 Jan 2005 14:05:22 GMT, Daniel Haude
<haude@kir.physnet.uni-hamburg.de> wrote:

As far as WWII is concerned -- the US wasn't much of a killer unit then.
They just dabbled in the war pretty late just to secure some stakes in
Europe. WWII was mainly won by the Soviets (with tremendous losses), with
some help from the British.

Wow, it's a lot easier to make up history than to read all those long
boring books.


John

 

[Frank Bemelman]

"Daniel Haude" <haude@kir.physnet.uni-hamburg.de> schreef in bericht
news:slrncuahu5.20v.haude@kir.physnet.uni-hamburg.de...

On Wed, 12 Jan 2005 08:01:05 -0700,
Jim Thompson <thegreatone@example.com> wrote
in Msg. <gleau015jvdhsnl9br19shrdtlfq5lrdjd@4ax.com

Believe whatever propaganda you wish...

Is that all you can supply as a counter-argument?

Jim Thompson is a simple minded peasant. A few borrowed
spice tricks and the rest of his bag is empty.

--
Thanks, Frank.
(remove 'q' and 'invalid' when replying by email)

 

Thanks for the replies, you have pretty much confirmed my suspisions
that it would be best to do this with a micro. The problem is I have
no expeience with them although it is something I'm wanting to learn.
Can you reccomend any resources on the web or other wise that can get
me started? Can you reccommend any components? Sorry about asking for
you to hold my hand on this and thanks again for the help this is a
great group and I have already learned alot on here.

 

[ZZZPK]

John Woodgate <jmw@jmwa.demon.contraspam.yuk> wrote:

: Freudian slip?

errr no...but cant explain why my index finger went for D instead of P



"can I have a P please Bob ?

 

[Pig Bladder]

On Tue, 11 Jan 2005 23:11:42 -0800, mrxtechnology wrote:

The Dream Machine

....Multiple windows

would allow several teleconference sites to be displayed in real time,
while applications programs, say a spreadsheet and database, were
running in other windows.
....
broadcast quality, real time video in as many as eight windows, the
....
Windowing capability would enable the user to monitor
several sporting events while teleconferencing with a friend in one of
the other available windows.

Geez! Whattaya, a "Human Doing?" How freaking busy do you need to be?
--
The Pig Bladder From Uranus, Still Waiting for
Some Hot Babe to Ask What My Favorite Planet Is.

 

[Pig Bladder]

On Wed, 12 Jan 2005 15:52:35 +0000, Daniel Haude wrote:

On Wed, 12 Jan 2005 08:01:05 -0700,
Jim Thompson <thegreatone@example.com> wrote
in Msg. <gleau015jvdhsnl9br19shrdtlfq5lrdjd@4ax.com

Believe whatever propaganda you wish...

Is that all you can supply as a counter-argument?

Why not? That's what _he's_ doing.

--
The Pig Bladder From Uranus, Still Waiting for
Some Hot Babe to Ask What My Favorite Planet Is.

 

It's a pretty big story actually; we're the seventh in a series of
creations, each denser than the last: http://www.godchannel.com
It was started with an explosion:
http://www.godchannel.com/reality3.html#explosion

Well, that's fine, but you haven't expalined what was going on
before creation. What exactly was God doing before there was any
creation? How did he spend his lunch hour?

-Bill

 

[Mike Fields]

"Rene Tschaggelar" <none@none.net> wrote in message
news:41e4fe57$1@news1.ethz.ch...

mrxtechnology@yahoo.com wrote:

This was my entry inti a contest held by the San Jose Mercury News in
Dec 1985. I have theoriginal hand written copies...and thr print out
from my PC Jr.

The Dream Machine
[snip]


Actally the only thing missing is the internet.

Rene

I thought Al Gore invented the internet ??? (he said so, so
it must be true ... I read it on the internet !!)

 

[keith]

On Wed, 12 Jan 2005 02:01:28 -0500, Aunty Kreist wrote:

"keith" <krw@att.bizzzz> wrote in message
newsan.2005.01.12.02.51.59.549035@att.bizzzz...
On Mon, 10 Jan 2005 22:14:19 -0600, Rhyanon wrote:


"keith" <krw@att.bizzzz> wrote in message
newsan.2005.01.09.03.08.49.102774@att.bizzzz...
On Sat, 08 Jan 2005 18:59:35 -0500, Aunty Kreist wrote:


I take it you don't have glasses then.

TO correct cross-posting, they have to catch it when you're young.


Nip it in the bud?

I'm sure you'd quite like that, but I'm a married man.

--
Keith


My condolences.

Why? Jealous? Sorryec3ht it's been 33.5 years. ...and you're ugly.

--
Keith

 

[Rich The Philosophizer]

On Wed, 12 Jan 2005 17:56:10 -0800, wrongaddress wrote:

It's a pretty big story actually; we're the seventh in a series of
creations, each denser than the last: http://www.godchannel.com
It was started with an explosion:
http://www.godchannel.com/reality3.html#explosion

Well, that's fine, but you haven't expalined what was going on
before creation. What exactly was God doing before there was any
creation? How did he spend his lunch hour?

OK, finally found the one about what was before the big explosion:

http://www.godchannel.com/bodyclass.html

Hope This Helps!
Rich

 

Tell you what, I will admit that Cal's post is wrong if you will tell
me the problems with PC's and sound cards. I am intrigued because I use
a PC based setup in my day job for some testing that happens to fall
into the audio frequency band.

Arny Krueger wrote:

Finally, there are some problems with PCs + sound cards as test
equipment
that weren't covered in Cal's post, and as soon as Cal admits this
post of
his is like totally wrong, I'll tell what they are.