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Topic: roaster controller project (14 msgs / 304 lines)
1) From: Jeffrey Pawlan
I found this kit:http://www.sparkfun.com/commerce/product_info.php?products_idYou can write the code yourself and make a controller for your roasters!
It won't be perfect or have great control but it could be better
than iroast, hottop or gene depending on how well you write the code.
I have not tried it nor do I know anyone who has used it. So I don't have
ANY knowledge about it other than the webpage.
Jeffrey Pawlan

2) From: scott miller
Jeffery,
Looks like a good way to get started. Unfortunately, my coding skills are
such that I'm sure my efforts would in a sudden, firey destruction of said
board and anything I made the mistake of attaching to it :)
cheers,
ScoTTT
On 9/27/06, Jeffrey Pawlan  wrote:
<Snip>

3) From: Aaron
speaking of coding.  I remember several years ago, some dweebs were 
bragging in the IRC on how fast they were able to overclock their 
pentiums.  I made a comment that you better be very careful because if 
you overclock too much, it skews the dual clock input triggers because 
of timing synchronization isues with lead lenghths from the clock chip 
to the two sides of the cpu .vs frequency, and that will cause new 
instruction codes to be introduced to the instruction set, codes that 
were not meant for final product protocol but were occasionally seen in 
engineering pretrials.
Needless to say, this got me an immediate OOH OOH.. what codes, what 
does it do.  I lead them on for about 10 minutes before telling the 
crowd, well for one.  the instruction HCF is introduced.
HCF.... what's that.?
Halt .. Catch on Fire....
ooh were they mad :P
Aaron

4) From: Leo Zick
This is a multi-part message in MIME format.
think its hard to modify the sample code, or find something that can be used
to create a profile?  i guess the code is used to program an eprom or
something?  seems like a great idea, but maybe too complicated?
 
would be nice to hook it up to a popper, but im guessing the voltage
variance would kill the popper sooner than desired..  
From: scott miller [mailto:peechdogg] 
Sent: Wednesday, September 27, 2006 8:49 PM
To: homeroast
Subject: Re: +Re: roaster controller project
Jeffery,
Looks like a good way to get started. Unfortunately, my coding skills are
such that I'm sure my efforts would in a sudden, firey destruction of said
board and anything I made the mistake of attaching to it :) 
cheers,
ScoTTT
On 9/27/06, Jeffrey Pawlan  wrote: 
I found this kit:http://www.sparkfun.com/commerce/product_info.php?products_idYou can write the code yourself and make a controller for your roasters! 
It won't be perfect or have great control but it could be better
than iroast, hottop or gene depending on how well you write the code.
I have not tried it nor do I know anyone who has used it. So I don't have 
ANY knowledge about it other than the webpage.
Jeffrey Pawlan

5) From: Maryann & Dave Schellenberg
I used a Poppery I on a Variac for two years, with voltage varying from 
80V to 115V, with no problems whatsoever. I mean besides having to watch 
the temperature and adjust the voltage accordingly.
Worked well, but I can relax a lot better with my HotTop, and only roast 
3 or 4 batches a week.
Dave S.
Leo Zick wrote:
<Snip>

6) From: Ed Needham
Would that have been Efnet or Dalnet overclocking group?
(grin)
Back then...Celeron 300a OC'd to 504 for work machine...rock solid.
*********************
Ed Needham
"to absurdity and beyond!"
ed at homeroaster dot com
(include [FRIEND] in subject line to get through my SPAM filters)
*********************

7) From: mcsparky6670
I'm thinking about gaining more control over the Hottop.
I've been curious about cost of your controller setup.
If you've been following the Sonofresco thread on the SM list,
you'll know what I'm looking for.
This controller is tempting, but I don't know C++ or Java.
Debating about learning same or investing in a proven system.
What do you think?
MMc
At 04:22 PM 9/27/2006 -0700, you wrote:
<Snip>

8) From: mcsparky6670
I'm thinking about gaining more control over the Hottop.
I've been curious about cost of your controller setup.
If you've been following the Sonofresco thread on the SM list,
you'll know what I'm looking for.
This controller is tempting, but I don't know C++ or Java.
Debating about learning same or investing in a proven system.
What do you think?
MMc
At 04:22 PM 9/27/2006 -0700, you wrote:
<Snip>

9) From: Michael Dhabolt
MMC
Another option that you may want to look into is using a PID and SSR
for heat control.  It's takes the writing of code out of the equation,
and for a few bucks extra it can be monitored, manipulated and
controlled from your PC if that kind of thing trips your trigger.
Mike (just plain)

10) From: Michael Mccandless
That's the direction I'm leaning fight now.
The Sonofresco is quite a ways off financially, so
in the interim, I am looking  into Hottop options.
Definitely need more control.
Never was a believer in the "one size fits all"  mentality.
McSparky
On 10/8/06, Michael Dhabolt  wrote:
<Snip>
unsvbscribes) go tohttp://sweetmarias.com/maillistinfo.html#personalsettings<Snip>

11) From: raymanowen
Man, it's awful tempting to start a small coffee shop called the "Tesla
Coffee Labs," get the kit and learn PIC Basic from a Nobleman's
Barnor Tattered
Cover  text. Except for the SSR, the kit would
have all the necessary controller parts. It sure would be flexible with some
simple PIC Basic programming
Heathkit "wouldn't let you fail," but I got no further than their
microprocessor trainers that I put together for a CSM lab. Flaming things
had clock crystals external to the microprocessor. The early ones had a
3.68MHz crystal- beautiful for obliterating TV sync. I bought one for
tinkering (with a 4.0 xtal), but I had no clue about profiled heating apps.
Cheers -RayO, aka Opa!
-- 
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Mighty
Wichita (ex- NYC Paramount) WurliTzer- 1976

12) From: M. McCandless
I see 3 - 4 books there, any recommendations?
TV crystals?
Brings back memories of the MM5369 & color burst xtal to
generate 60 HZ for digital clocks.
What kit are you referring to?
The Hottop uses a Pic chip (PIC16C72A-04/SP).
It may be advantageous to build on an existing Hottop board.
McSparky
At 12:25 PM 10/9/2006 -0600, you wrote:
<Snip>

13) From: Michael Dhabolt
The 'Basic Stamp' stuff from Parallax (http://www.parallax.com/)
would also be a good place to start if you're really into DIY at that
level.  Heck of a support community and forum behind their products.
Mike (just plain)

14) From: raymanowen
McBlueFire-
The link in Jeffrey Pawlan's quoted snip-
referred to this:
"Reflow Toaster Controller
SKU#: Tools-RFC
 *Description: *The Reflow Toaster controller from Spark Fun Electronics.
This board was specifically developed to control a toaster oven, hot plate,
reflow oven, or other high power device. The unit *comes as a kit * with all
the needed components for a fully independent system. Runs on a PIC 16F88
with boot loader pre-loaded..."
Never mind the micro controller kit- all you need is a "Ladder Logic"
flowchart of what you want the controller to do.
I think you're exactly right- just build on the Hottop's Pic chip
(PIC16C72A-04/SP).
Study what the Hottop does and write the Ladder Logic flowchart including
the I/O devices on the machine. [I/O= controls/ motors, heaters and
indicators]
What controls can you use intact just by rescaling them?
Interesting project- now I'll have to look again at my DAK bread machine to
see if it can become a Ronco Roaster ["Set it and Forget it"]. If that ever
happens, it'll become an Offering, because I couldn't live with "Set it and
Forget it."
I don't know Ron Popiel- maybe have to call it a "Tesla Roaster." Or Not.
The cylindrical pan has a bean drain hole in bottom center when you bayonet
it out. But maybe I can fix that.
Thanks for the reminder.
Cheers -RayO, aka Opa!
"When the theme hits the bass, I dance the Jig!" - -Virgil Fox at the Mighty
Wichita (ex- NYC Paramount) WurliTzer- 1976


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