Hay I like the talking toaster idea too.
God bless,
Mark
God loves you!
My ham radio lists.
http://lists.topica.com/lists/funhamradio.
http://groups.google.com/group/funhamradio-list
----- Original Message -----
From: "Fred Olver" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, March 03, 2008 10:24 AM
Subject: Re: Building Equipment
> Mark,
>
> Let me know if you build one of those toasters, I'm constantly burning
> mine.
>
> Fred
>
> ----- Original Message -----
> From: "Senk, Mark J. (CDC/NIOSH/NPPTL)" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, March 03, 2008 12:17 PM
> Subject: Re: Building Equipment
>
>
>> Hi again,
>>
>> I'd like to know what you have done with pic controllers.
>> Where do you obtain the parts you need?
>>
>> I don't want to pay a dollar for a LED at the mall and I don't need 100 =
>> of them from a dealer on ebay !!
>>
>> I found a book on netlibrary.org about pic microcontrollers.
>>
>> Excerpt:
>>
>> This chapter begins our applications. The first project is a speech =
>> synthesizer=20
>> that can be embedded into another circuit or project to add speech =
>> capabilities.=20
>> You may want to create a talking toaster that will tell you when your =
>> toast is=20
>> ready, or a talking VCR. The circuit is activated and the speech =
>> selected by=20
>> using high or low logic signals to port A.=20
>> Speech synthesizers (or processors) are available in two formats. The =
>> first=20
>> format uses sampled (digitally recorded) speech stored in ROM or EEPROM.
>> =
>>
>> The second approach uses phonemes of English to construct words. A =
>> phoneme=20
>> is a speech sound.=20
>> Each format has its advantages and disadvantages. Digitally recorded=20
>> speech has excellent fidelity, but has a limited vocabulary because of =
>> the large=20
>> storage capacity required. The phoneme approach has an unlimited =
>> vocabulary, but the speech fidelity isn't as good as that of sampled =
>> speech. Even so,=20
>> the phoneme approach usually suffices as long as a mechanical =
>> (robotic-type)=20
>> voice is acceptable. This is the approach we are using.=20
>> The total cost of this project, including the PIC microcontroller, =
>> should be=20
>> less than $25.00. Included in this price are an audio amplifier, filter,
>> =
>> volume=20
>> control, and speaker. =20
>>
>>
>> Mark J. Senk | 412-386-6513 | [log in to unmask]
>> <img =
>> src=3D"http://212.179.113.209/QRCode/img.php?d=3DBEGIN%3AVCARD%0AN%3AMark=
>> %20J.%20Senk%0ATEL%3A412-386-6513%0AEMAIL%3Azia7%40cdc.gov%0AEND%3AVCARD&=
>> c=3DContact%20Mark%20Senk&s=3D4"
>> alt=3D"QR4Senk" />=A0
>>
>> -----Original Message-----
>> From: For blind ham radio operators =
>> [mailto:[log in to unmask]] On Behalf Of Martin McCormick
>> Sent: Wednesday, February 27, 2008 11:34 AM
>> To: [log in to unmask]
>> Subject: Re: Building Equipment
>>
>> I like using perf board and wire-wrap for digital projects as well =
>> aseven some RF projects. You must solder leads to components since =
>> component leads are round and do not bite in to the wire-wrap wire.
>>
>> I also have played around with PIC microcontrollers and the Motorola =
>> 68HC11 which is another embedded controller.
>>
>> The idea of a circuit description language is a very good one. Things =
>> like PIC's and other microprocessors simplify the construction details =
>> since more of the circuit is in firmware, but documenting a circuit has =
>> been one of my biggest problems so one can come back to it in months or =
>> years and tell what is what.
>>
>> My favorite soldering tool for small parts is a Wahl cordless soldering =
>> gun. I also have a bigger gun for the big stuff like coax connectors and
>> =
>> anything else that sucks the heat away too fast for a little iron to =
>> work well.
>>
>> I do have a question. I have occasionally used cotton work gloves to =
>> shield my fingers when using a standard plug-in iron. you can safely, =
>> but lightly touch the tip because the cotton insulates your fingers but =
>> the cotton easily burns through and the glove is ruined as soon as the =
>> hole burns in a finger.
>>
>> Is there any heat-resistant fabric that feels about like cotton but =
>> doesn't burn as easily?
>>
>> If there was something like that , one could use a regular iron more =
>> easily.
>>
>> Guns, of course, can start cold so you can touch everything, but guns =
>> also apply more heat as they warm up than an already-hot iron.
>>
>> An already hot iron, however, can do lots of damage if you don't watch =
>> where you put it on the work. A normal tip temperature is about 700 =
>> degrees F.
>>
>> Another advantage of light gloves is that you really don't want to get =
>> human finger prints on what you are soldering because the solder flux =
>> isn't capable of cleaning the oil off that well.
>>
>> I am 56 years old and have been building and tinkering since I was in =
>> grade school so I am always looking for a new angle to try.
>>
>> Martin McCormick WB5AGZ Stillwater, OK Systems Engineer OSU Information
>> =
>> Technology Department Network Operations Group
>>
>> "John J. Boyer" writes:
>>>It's nice to see that there are several people interested in building=20
>>>equipment on the list, since what I want to do in ham radio is build=20
>>>and try out equipment. When I was younger I used to build quite a lot,=20
>>>including soldering. I built transistor circuits, but I used a modified =
>>
>>>version of a breadboard. Nowadays techniques are quite different.
>>>
>>>I wonder how many of you remember Bob Gunderson of the New York=20
>>>Institute for the Education of the blind. He was fand away my favorite=20
>>>teacher.
>>>
>>>The Braille Technical Press and later the Technical Files used to=20
>>>publish circuit diagrams. I'm thinking that a circuit-description=20
>>>language like Spice might be used to describe circuits for the blind.
>>>Another possibility would be to develop or find a language based on =
>> xml.=20
>>>I have been working on transcribing xml to braille for several years.
>>>
>>>Let me know your ideas.
>>>
>>>Thanks,
>>>John
>>>
>>>--
>>>John J. boyer; President, Chief Software Developer JJB Software, Inc.
>>>http://www.jjb-software.com
>>>Madison, WI USA
>>>Developing software for people with disabilities
>>>
>>
>
>
>
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