IR/555 Timer Question????
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Posts: 46,084
Hello everyone?
Does anyone have a diagram/schematic of the IR Detector and 555 Timer
circuit? I want to be able to detect something that is between 4 and
6 feet away.
Thanks in advance,
Frank G.
Does anyone have a diagram/schematic of the IR Detector and 555 Timer
circuit? I want to be able to detect something that is between 4 and
6 feet away.
Thanks in advance,
Frank G.
Comments
Original Message
> Does anyone have a diagram/schematic of the IR Detector and 555 Timer
> circuit? I want to be able to detect something that is between 4 and
> 6 feet away.
Drive an infrared LED with a 555, running at 38Khz (or 36Khz, not
sure) Anyway, I think 38Khz is the frequency almost all IR remotes
operate on. Detect the modulated IR with an IR detector module
(RatShack has 'em) This module will reject everything except IR
modulated at the correct frequency (again, off the top of my head, I
think 38Khz)
The easy way:
The IR receiver module will output data when it "sees" IR from any IR
remote you have laying around. This data can be "smoothed" thru a
cap, buffered through a transistor, and you're done.
This may be a good opportunity for you guys to play around with the
Holtek IR encoder/decoder chips (The heart of many remotes and garage
door openers) The holtek chips come in IR and RF flavors...
Regards
Rich
--- In basicstamps@y..., Rodent <daweasel@s...> wrote:
> Glad you asked -- I need one also.
>
>
Original Message
>
> > Does anyone have a diagram/schematic of the IR Detector and 555
Timer
> > circuit? I want to be able to detect something that is between 4
and
> > 6 feet away.
*************
Do it like this:
Drive an infrared LED with a 555, running at 38Khz (or 36Khz, not
sure)
<SNIP!>
> > Glad you asked -- I need one also.
> >
> >
Original Message
> >
> > > Does anyone have a diagram/schematic of the IR Detector and 555
> Timer
> > > circuit? I want to be able to detect something that is between 4
> and
> > > 6 feet away.
frequency of 38500. Range can be lowered by moving either side of that
frequency. If 38500 will not give you the distance you want with your
present IR transmitter then you need a transmitter with a little more power.
I don't think using the timer is not going to improve your distance because
you are using it only to generate a frequency.
Regards
Sid
Would you like me to build this project for you as well as design it
for you? You seem like a nice enough guy...
Sorry, Driving a 555 at 38Khz should not be to challenging. You know
what, I told you how I would do it. That should have been enough.
Instead of whining about my not giving you the fine details about
how to wire a 555, you should be thanking me for taking the time to
consider, and answer, your query.
You want to know how to wire a 555, go to ratshack and purchase the
mini engineers book about 555 applications. Get a datasheet from
National semiconductor, learn about the chip. The 555 is easy, trust
me.
I don't mean to be pompous, I received much help here, but, if you
consider my suggestions to be good ones, why not make it your
business to figure out how to use a 555? (one of the most versitale
chips ever made.) At 1/100 the cost of a BS2 it might really make
sense someday.
Next time I'll keep my suggestions to myself.
Ciao
--- In basicstamps@y..., Rodent <daweasel@s...> wrote:
> I think we grasp the concept -- does anyone have a DIAGRAM /
SCHEMATIC ??
>
> *************
>
> Do it like this:
>
> Drive an infrared LED with a 555, running at 38Khz (or 36Khz, not
> sure)
>
> <SNIP!>
>
> > > Glad you asked -- I need one also.
> > >
> > >
Original Message
> > >
> > > > Does anyone have a diagram/schematic of the IR Detector and
555
> > Timer
> > > > circuit? I want to be able to detect something that is
between 4
> > and
> > > > 6 feet away.
tie up the processor with this task, especially since its a BS1. Since this
is for sumo, I'm not really interested in determining range, just where the
opponent is.
Original Message
> If you are using Stamp, maximum IR range is acheived by using a detection
> frequency of 38500. Range can be lowered by moving either side of that
> frequency. If 38500 will not give you the distance you want with your
> present IR transmitter then you need a transmitter with a little more
power.
> I don't think using the timer is not going to improve your distance
because
> you are using it only to generate a frequency.
designing and building the circuit for me, I have another task you can
perform... ()()
One reason we ask these questions is so we don't have to reinvent the
wheel -- the datasheet is helpful, but there may be other non-standard ways
of making it work better, not to mention some caveats as to resistor and
capacitor values.
As for Radio Shack, I don't believe they still carry the 555 book, and the
555 cookbook is long out of print.
And just remember, some of us are not as smart as you think you are...
Original Message
> Yes, I do have the schematics to do this (called a "data sheet").
> Would you like me to build this project for you as well as design it
> for you? You seem like a nice enough guy...
>
> Sorry, Driving a 555 at 38Khz should not be to challenging. You know
> what, I told you how I would do it. That should have been enough.
>
> Instead of whining about my not giving you the fine details about
> how to wire a 555, you should be thanking me for taking the time to
> consider, and answer, your query.
>
> You want to know how to wire a 555, go to ratshack and purchase the
> mini engineers book about 555 applications. Get a datasheet from
> National semiconductor, learn about the chip. The 555 is easy, trust
> me.
>
> I don't mean to be pompous, I received much help here, but, if you
> consider my suggestions to be good ones, why not make it your
> business to figure out how to use a 555? (one of the most versitale
> chips ever made.) At 1/100 the cost of a BS2 it might really make
> sense someday.
>
> Next time I'll keep my suggestions to myself.
> > I think we grasp the concept -- does anyone have a DIAGRAM /
> SCHEMATIC ??
> >
> > *************
> >
> > Do it like this:
> >
> > Drive an infrared LED with a 555, running at 38Khz (or 36Khz, not
> > sure)
> >
> > <SNIP!>
> >
> > > > Glad you asked -- I need one also.
> > > >
> > > >
Original Message
> > > >
> > > > > Does anyone have a diagram/schematic of the IR Detector and
> 555
> > > Timer
> > > > > circuit? I want to be able to detect something that is
> between 4
> > > and
> > > > > 6 feet away.
Besides, your making me feel guilty because I'm the one who asked
this question.
Hey Rodent, check out this link. I don't know if it will help you.
But I think it is what I'm looking for.
http://www.ee.washington.edu/conselec/Sp96/projects/mitchrob/final/fin
al.htm
--- In basicstamps@y..., Rodent <daweasel@s...> wrote:
> Keeping your suggestions to yourself sounds good to me. While you're
> designing and building the circuit for me, I have another task you
can
> perform... ()()
>
> One reason we ask these questions is so we don't have to reinvent
the
> wheel -- the datasheet is helpful, but there may be other non-
standard ways
> of making it work better, not to mention some caveats as to
resistor and
> capacitor values.
>
> As for Radio Shack, I don't believe they still carry the 555 book,
and the
> 555 cookbook is long out of print.
>
> And just remember, some of us are not as smart as you think you
are...
>
>
Original Message
>
> > Yes, I do have the schematics to do this (called a "data sheet").
> > Would you like me to build this project for you as well as design
it
> > for you? You seem like a nice enough guy...
> >
> > Sorry, Driving a 555 at 38Khz should not be to challenging. You
know
> > what, I told you how I would do it. That should have been enough.
> >
> > Instead of whining about my not giving you the fine details about
> > how to wire a 555, you should be thanking me for taking the time
to
> > consider, and answer, your query.
> >
> > You want to know how to wire a 555, go to ratshack and purchase
the
> > mini engineers book about 555 applications. Get a datasheet from
> > National semiconductor, learn about the chip. The 555 is easy,
trust
> > me.
> >
> > I don't mean to be pompous, I received much help here, but, if you
> > consider my suggestions to be good ones, why not make it your
> > business to figure out how to use a 555? (one of the most
versitale
> > chips ever made.) At 1/100 the cost of a BS2 it might really make
> > sense someday.
> >
> > Next time I'll keep my suggestions to myself.
>
> > > I think we grasp the concept -- does anyone have a DIAGRAM /
> > SCHEMATIC ??
> > >
> > > *************
> > >
> > > Do it like this:
> > >
> > > Drive an infrared LED with a 555, running at 38Khz (or 36Khz,
not
> > > sure)
> > >
> > > <SNIP!>
> > >
> > > > > Glad you asked -- I need one also.
> > > > >
> > > > >
Original Message
> > > > >
> > > > > > Does anyone have a diagram/schematic of the IR Detector
and
> > 555
> > > > Timer
> > > > > > circuit? I want to be able to detect something that is
> > between 4
> > > > and
> > > > > > 6 feet away.
>One reason we ask these questions is so we don't have to reinvent the
>wheel -- the datasheet is helpful, but there may be other non-standard ways
>of making it work better, not to mention some caveats as to resistor and
>capacitor values.
>
>As for Radio Shack, I don't believe they still carry the 555 book, and the
>555 cookbook is long out of print.
>
>And just remember, some of us are not as smart as you think you are...
Did you look in your Stamp manual? Try page 119 in the Ver 1.8 manual. I
bet it's still in the Ver 1.9 manual too. This circuit also includes the
ability to modulate the output of the 555 as a bonus.
Jim H
+5, ground and one pin to the Stamp. They are anywhere from $1.35 to $2.60
in price from several sources including Al Williams and Parallax. If you
want to use a Stamp to drive the LED you can refer to the Parallax weekend
deal they had a while back:
http://www.parallaxinc.com/downloads/Resources/Weekend%20Special%20-%20IR%20
LED%20&%2040%20kHz%20Detector.PDF
If the link doesn't work, go to the main Parallax site and search for
"weekend."
Original Message
> Hey Rodent, check out this link. I don't know if it will help you.
> But I think it is what I'm looking for.
>
> http://www.ee.washington.edu/conselec/Sp96/projects/mitchrob/final/fin
> al.htm
I wouldn't - and won't - help any rude idiot...
Certain members here are now on my "idiot" auto-delete list.
You know who you are [noparse];)[/noparse]
Ken
with enough thrust, pigs fly just fine.
---- On Fri, 29 Jun 2001, Rodent (daweasel@s...) wrote:
> Keeping your suggestions to yourself sounds good to me. While
you're
> designing and building the circuit for me, I have another
task you can
> perform... ()()
>
> One reason we ask these questions is so we don't have to
reinvent the
> wheel -- the datasheet is helpful, but there may be other non-
standard
> ways
> of making it work better, not to mention some caveats as to
resistor and
> capacitor values.
>
> As for Radio Shack, I don't believe they still carry the 555
book, and
> the
> 555 cookbook is long out of print.
>
> And just remember, some of us are not as smart as you think
you are...
>
>
Original Message
>
> > Yes, I do have the schematics to do this (called a "data
sheet").
> > Would you like me to build this project for you as well as
design it
> > for you? You seem like a nice enough guy...
> >
> > Sorry, Driving a 555 at 38Khz should not be to challenging.
You know
> > what, I told you how I would do it. That should have been
enough.
> >
> > Instead of whining about my not giving you the fine
details about
> > how to wire a 555, you should be thanking me for taking the
time to
> > consider, and answer, your query.
> >
> > You want to know how to wire a 555, go to ratshack and
purchase the
> > mini engineers book about 555 applications. Get a datasheet
from
> > National semiconductor, learn about the chip. The 555 is
easy, trust
> > me.
> >
> > I don't mean to be pompous, I received much help here, but,
if you
> > consider my suggestions to be good ones, why not make it
your
> > business to figure out how to use a 555? (one of the most
versitale
> > chips ever made.) At 1/100 the cost of a BS2 it might
really make
> > sense someday.
> >
> > Next time I'll keep my suggestions to myself.
>
> > > I think we grasp the concept -- does anyone have a
DIAGRAM /
> > SCHEMATIC ??
> > >
> > > *************
> > >
> > > Do it like this:
> > >
> > > Drive an infrared LED with a 555, running at 38Khz (or
36Khz, not
> > > sure)
> > >
> > > <SNIP!>
> > >
> > > > > Glad you asked -- I need one also.
> > > > >
> > > > >
Original Message
> > > > >
> > > > > > Does anyone have a diagram/schematic of the IR
Detector and
> > 555
> > > > Timer
> > > > > > circuit? I want to be able to detect something
that is
> > between 4
> > > > and
> > > > > > 6 feet away.
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed with. Text
in the
> Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
particular command or in another section?
Is this the deal that shows you how to tune the frequency of the oscillator
with a Stamp? I think I ran across it in one of the Stamps In Class
documents a while back.
Original Message
> Did you look in your Stamp manual? Try page 119 in the Ver 1.8 manual. I
> bet it's still in the Ver 1.9 manual too. This circuit also includes the
> ability to modulate the output of the 555 as a bonus.
I think I might have a schematic of the 555 in an ancient Texas Instruments
manual. If I remember correctly, it shows you how to add external components
to adjust the frequency. If you need it let me know. If I can find it I
could scan the page and e-mail it to you.
Sid Weaver
Newzed@a...
Looks like its in the Stamp 1 App Notes v1.9 on page 119.
Original Message
> Did you look in your Stamp manual? Try page 119 in the Ver 1.8 manual. I
> bet it's still in the Ver 1.9 manual too. This circuit also includes the
> ability to modulate the output of the 555 as a bonus.
is a good site on the 555 chip. It'll help you pick resistor and
capacitor values for whatever frequency you're looking for, and it has
schematics on there..
Rory
> Does anyone have a diagram/schematic of the IR Detector and 555 Timer circuit?
fifty dollar microcontrollers do things that could be done with 5
bucks worth of parts.
Now before things get more out of hand, my reply to your query was
intended to be helpful.
I THINK WE GRASP THE CONCEPT... That's your way of thanking me for
taking the time to address your query.
When I needed a hand out here I never asked anyone to write the code
for me. I did my own research.
And as for my performing some unmentionable task for you, I would be
delighted. Make sure to give me a call next time you're around New
England. Me and you, we'll get together for some coffee...
What a dope
--- In basicstamps@y..., Rodent <daweasel@s...> wrote:
> Keeping your suggestions to yourself sounds good to me. While you're
> designing and building the circuit for me, I have another task you
can
> perform... ()()
>
> One reason we ask these questions is so we don't have to reinvent
the
> wheel -- the datasheet is helpful, but there may be other non-
standard ways
> of making it work better, not to mention some caveats as to
resistor and
> capacitor values.
>
> As for Radio Shack, I don't believe they still carry the 555 book,
and the
> 555 cookbook is long out of print.
>
> And just remember, some of us are not as smart as you think you
are...
>
>
Original Message
>
> > Yes, I do have the schematics to do this (called a "data sheet").
> > Would you like me to build this project for you as well as design
it
> > for you? You seem like a nice enough guy...
> >
> > Sorry, Driving a 555 at 38Khz should not be to challenging. You
know
> > what, I told you how I would do it. That should have been enough.
> >
> > Instead of whining about my not giving you the fine details about
> > how to wire a 555, you should be thanking me for taking the time
to
> > consider, and answer, your query.
> >
> > You want to know how to wire a 555, go to ratshack and purchase
the
> > mini engineers book about 555 applications. Get a datasheet from
> > National semiconductor, learn about the chip. The 555 is easy,
trust
> > me.
> >
> > I don't mean to be pompous, I received much help here, but, if you
> > consider my suggestions to be good ones, why not make it your
> > business to figure out how to use a 555? (one of the most
versitale
> > chips ever made.) At 1/100 the cost of a BS2 it might really make
> > sense someday.
> >
> > Next time I'll keep my suggestions to myself.
>
> > > I think we grasp the concept -- does anyone have a DIAGRAM /
> > SCHEMATIC ??
> > >
> > > *************
> > >
> > > Do it like this:
> > >
> > > Drive an infrared LED with a 555, running at 38Khz (or 36Khz,
not
> > > sure)
> > >
> > > <SNIP!>
> > >
> > > > > Glad you asked -- I need one also.
> > > > >
> > > > >
Original Message
> > > > >
> > > > > > Does anyone have a diagram/schematic of the IR Detector
and
> > 555
> > > > Timer
> > > > > > circuit? I want to be able to detect something that is
> > between 4
> > > > and
> > > > > > 6 feet away.
down and put the pencil to it and figure out what the component values are.
Funny how you don't think you'll ever need your old books -- at one time I
had a 555 cookbook as well as the Radio Shack deal, but they either got
tossed or piled into the back of the closet a long time ago.
Looks like the schematic the other guy found may work if you use their
detector circuit also, but it won't work as is with a 38 khz unit.
Original Message
> I think I might have a schematic of the 555 in an ancient Texas
Instruments
> manual. If I remember correctly, it shows you how to add external
components
> to adjust the frequency. If you need it let me know. If I can find it I
> could scan the page and e-mail it to you.
Has anyone tried the 50% duty cycle circuit in the National application
notes?
Original Message
> http://www.andy-clarkson.co.uk/555/
>
> is a good site on the 555 chip. It'll help you pick resistor and
> capacitor values for whatever frequency you're looking for, and it has
> schematics on there..
Please don't let that rude infant (probably should change his
name to "rodent ****" ) deter you from further participation in
this list. I appreciate the help you offer here, as I'm sure
99% of the members do...
Ken Ambrose
with enough thrust, pigs fly just fine.
---- On Fri, 29 Jun 2001, iceninevt@y...
(iceninevt@y...) wrote:
> I just sit back and smile while you guys figure out ways of
making
> fifty dollar microcontrollers do things that could be done
with 5
> bucks worth of parts.
>
> Now before things get more out of hand, my reply to your
query was
> intended to be helpful.
>
> I THINK WE GRASP THE CONCEPT... That's your way of thanking
me for
> taking the time to address your query.
>
> When I needed a hand out here I never asked anyone to write
the code
> for me. I did my own research.
>
> And as for my performing some unmentionable task for you, I
would be
> delighted. Make sure to give me a call next time you're
around New
> England. Me and you, we'll get together for some coffee...
>
> What a dope
>
>
>
>
>
> --- In basicstamps@y..., Rodent <daweasel@s...> wrote:
> > Keeping your suggestions to yourself sounds good to me.
While you're
> > designing and building the circuit for me, I have another
task you
> can
> > perform... ()()
> >
> > One reason we ask these questions is so we don't have to
reinvent
> the
> > wheel -- the datasheet is helpful, but there may be other
non-
> standard ways
> > of making it work better, not to mention some caveats as to
> resistor and
> > capacitor values.
> >
> > As for Radio Shack, I don't believe they still carry the
555 book,
> and the
> > 555 cookbook is long out of print.
> >
> > And just remember, some of us are not as smart as you think
you
> are...
> >
> >
Original Message
> >
> > > Yes, I do have the schematics to do this (called a "data
sheet").
> > > Would you like me to build this project for you as well
as design
> it
> > > for you? You seem like a nice enough guy...
> > >
> > > Sorry, Driving a 555 at 38Khz should not be to
challenging. You
> know
> > > what, I told you how I would do it. That should have been
enough.
> > >
> > > Instead of whining about my not giving you the fine
details about
> > > how to wire a 555, you should be thanking me for taking
the time
> to
> > > consider, and answer, your query.
> > >
> > > You want to know how to wire a 555, go to ratshack and
purchase
> the
> > > mini engineers book about 555 applications. Get a
datasheet from
> > > National semiconductor, learn about the chip. The 555 is
easy,
> trust
> > > me.
> > >
> > > I don't mean to be pompous, I received much help here,
but, if you
> > > consider my suggestions to be good ones, why not make it
your
> > > business to figure out how to use a 555? (one of the most
> versitale
> > > chips ever made.) At 1/100 the cost of a BS2 it might
really make
> > > sense someday.
> > >
> > > Next time I'll keep my suggestions to myself.
> >
> > > > I think we grasp the concept -- does anyone have a
DIAGRAM /
> > > SCHEMATIC ??
> > > >
> > > > *************
> > > >
> > > > Do it like this:
> > > >
> > > > Drive an infrared LED with a 555, running at 38Khz (or
36Khz,
> not
> > > > sure)
> > > >
> > > > <SNIP!>
> > > >
> > > > > > Glad you asked -- I need one also.
> > > > > >
> > > > > >
Original Message
> > > > > >
> > > > > > > Does anyone have a diagram/schematic of the IR
Detector
> and
> > > 555
> > > > > Timer
> > > > > > > circuit? I want to be able to detect something
that is
> > > between 4
> > > > > and
> > > > > > > 6 feet away.
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed with. Text
in the
> Subject and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
>
>
>
>
component values for 555 based oscillator circuits quite painless at:
http://www.csmicrosystems.com/timerdesigner/index.html
If you have the equipment to program a small 8-pin PIC12C508, I can provide
you with the assembly (or .hex) code to build your own 38KHz or 40KHz
oscillators.
Very stable, and quite inexpensive.
Using the 8-pin PIC for a 38kHz or 40kHz oscillator only requires 2 components.
The PIC, and ceramic oscillator. 555 timer circuits have a tendency to drift.
The
PIC oscillators are solid.
Here's a couple projects that show how these are used with IR LED drive
circuits:
http://www.rentron.com/Infrared_Remote_Control.htm
http://www.rentron.com/Infrared_Communication.htm
Regards,
Bruce
webmaster@r...
http://www.rentron.com
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, June 29, 2001 12:48 PM
Subject: Re: [noparse][[/noparse]basicstamps] Re: IR/555 Timer Question????
> Gracias Sid. I've got the spec sheets and stuff already, just need to sit
> down and put the pencil to it and figure out what the component values are.
>
> Funny how you don't think you'll ever need your old books -- at one time I
> had a 555 cookbook as well as the Radio Shack deal, but they either got
> tossed or piled into the back of the closet a long time ago.
>
> Looks like the schematic the other guy found may work if you use their
> detector circuit also, but it won't work as is with a 38 khz unit.
>
>
Original Message
>
> > I think I might have a schematic of the 555 in an ancient Texas
> Instruments
> > manual. If I remember correctly, it shows you how to add external
> components
> > to adjust the frequency. If you need it let me know. If I can find it I
> > could scan the page and e-mail it to you.
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed with. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
No problem, Dave
Went looking for the book just in case. It was an old Motorola manual, not
TI, published in 1979. Indentally, dod you know there is a 556 chip which
has two 555's on it?
Best Regards
Sid
solution sounds interesting. I'm not hip on the PIC situation -- any
suggestions on beginner books?
Original Message
> CS MicroSystems has a really nice (free) software application that makes
finding
> component values for 555 based oscillator circuits quite painless at:
> http://www.csmicrosystems.com/timerdesigner/index.html
>
> If you have the equipment to program a small 8-pin PIC12C508, I can
provide
> you with the assembly (or .hex) code to build your own 38KHz or 40KHz
oscillators.
> Very stable, and quite inexpensive.
>
> Using the 8-pin PIC for a 38kHz or 40kHz oscillator only requires 2
components.
> The PIC, and ceramic oscillator. 555 timer circuits have a tendency to
drift. The
> PIC oscillators are solid.
>
> Here's a couple projects that show how these are used with IR LED drive
circuits:
> http://www.rentron.com/Infrared_Remote_Control.htm
>
> http://www.rentron.com/Infrared_Communication.htm
use a 556 for this application as I want to have a central detector and fire
a left and right LED to determine direction.
I think we all had those books at one time or another. Last time I was doing
electronic stuff we had a whole room full of reference books, including
stuff on vacuum tubes.
Original Message
> Went looking for the book just in case. It was an old Motorola manual,
not
> TI, published in 1979. Indentally, dod you know there is a 556 chip which
> has two 555's on it?
Original Message
From: "Rodent" <daweasel@s...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, June 29, 2001 1:45 PM
Subject: Re: [noparse][[/noparse]basicstamps] Re: IR/555 Timer Question????
> Cool -- thanks Bruce. Got a 555 circuit working right now, but the PIC
> solution sounds interesting. I'm not hip on the PIC situation -- any
> suggestions on beginner books?
David Bensons Easy PIC'n is one of my favorites, and definitely
a great starting point for someone new to the PIC.
http://www.rentron.com/books.htm#book3
Regards,
Bruce
webmaster@r...
http://www.rentron.com
not processing orders.
Just to cover the bases, I've ordered from Rentron too. Excellent
service with LOTS of PIC information too.
Kevin (not affiliated with either site, just a satisfied customer)
"Webmaster@r..." wrote:
>
>
Original Message
> From: "Rodent" <daweasel@s...>
> To: <basicstamps@yahoogroups.com>
> Sent: Friday, June 29, 2001 1:45 PM
> Subject: Re: [noparse][[/noparse]basicstamps] Re: IR/555 Timer Question????
>
> > Cool -- thanks Bruce. Got a 555 circuit working right now, but the PIC
> > solution sounds interesting. I'm not hip on the PIC situation -- any
> > suggestions on beginner books?
>
> David Bensons Easy PIC'n is one of my favorites, and definitely
> a great starting point for someone new to the PIC.
> http://www.rentron.com/books.htm#book3
>
> Regards,
>
> Bruce
> webmaster@r...
> http://www.rentron.com
>
> To UNSUBSCRIBE, just send mail to:
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>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
data book, but the pages are too yellow to make good copies ;-)
Mike
At 03:39 PM 6/29/2001 -0400, you wrote:
>For daweasel
>
>No problem, Dave
>
>Went looking for the book just in case. It was an old Motorola manual, not
>TI, published in 1979. Indentally, dod you know there is a 556 chip which
>has two 555's on it?
>
>Best Regards
>Sid
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed with. Text in the Subject
>and Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
_________________________________
Mike Walsh
walsh@i...
Boy, you must be almost as old as I am.
Sid
1971 started as an engineering tech as I finished my degree. Been here
since. One of these days I'll leave and get a real job.
I was reminded about not being able to use calculators in college. I had an
AC theory class final and my boss offered to loan me his HP35 (first
scientific / RPN calculator) for the exam. WOW! I was going to skate
through this one! No, my professor nailed me before the exam started and
told me to pull out my Log-Log K&E. Gee, I miss those days .............. not!
Mike
At 05:46 PM 6/29/2001 -0400, you wrote:
>For walsh@caltech
>
>Boy, you must be almost as old as I am.
>
>Sid
>
>To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
>from the same email address that you subscribed with. Text in the Subject
>and Body of the message will be ignored.
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
_________________________________
Mike Walsh
walsh@i...
>Quick search of 2.0c Stamp manual does not show it. Is it listed with a
>particular command or in another section?
>
>Is this the deal that shows you how to tune the frequency of the oscillator
>with a Stamp? I think I ran across it in one of the Stamps In Class
>documents a while back.
It's Application Note #11 titled "Infrared Communications" in my ver 1.8
Manual.
Also App Note #12, "Sonar Range Finding."
Jim H
That thing must be fifty years old. There was a day when I used it
constantly as a capacitor design engineer. Ah me, such fond memories.
Have a nice weekend.
Sid