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'Senior Project'
1998\02\10@144708 by Harvell Christopher

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Greetings everyone!!!  I have decided to design and build a bicycle computer
for my senior project.  I would like it to keep running speed, running
distance, average speed, have a temperature sensor, and a 12 hour clock.
The speed and distance functions will be based on a pulse signal from a
revolution counter.  The temperature sensor will need a table look up to
access the desired information.  The 12 hour clock should be low power.  I
have choosen, with the help of some industry professionals, the PIC16C72
and  PICSTART Plus Programmer.

Are there any Application notes available for any of these functions???  If
so, where can I go to find them??

Thanx

Chris

1998\02\10@210338 by Ken Pergola

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Harvell Christopher wrote:

> Greetings everyone!!!  I have decided to design and build a bicycle computer
> for my senior project.

Hi Chris,

Great choice for a project -- you'll be in great physical and mental shape!

If you don't mind, let me make a suggestion for a wheel sensor. Go for an Avocet
wheel sensor for the best resolution. With 10 magnets on it, you can't go wrong.
I bought one for a future bike project. My plan is to use a hall effect sensor.
You can use the PIC's interrupt edge bit to your advantage to get 20 pulses per
revolution if you want.

You might want to use the Dallas Semiconductor DS1621 temp sensor -- then if you
want to do data logging in the future, just add a I2C serial EEPROM (to your
existing bus) and some more code.

You also might want to use the PIC as the clock. A 4.096 MHz crystal makes
timekeeping a bit simpler.


Hey, have fun! I projects like these in which you get to do the testing outdoors
after spending many hours indoors. Balance is the key.


P.S.
By the way, contact Colorado Cyclist sells the Avocet magnet sensors -- they
will only set you back around $5. Just be aware that there are disc, 3-prong,
and 4-prong types. What you want to buy depends on how many spokes you have. The
sensor assembly sits right around the hub and you use cable ties to fasten them.
If you want to see what they look like, I believe Avocet has diagrams in their
user manuals:

http://www.avocet.com/45ttEng.pdf

Check out this document and you can see exactly what these magnet wheel sensors
look like. They are great!
By the way, I have the Avocet 45tt bike computer and it's an amazing device. But
it will be fun making my own bike computer as well.


Best wishes on your project,


Ken Pergola

1998\02\11@015724 by Nigel Goodwin

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In message <spam_OUT34E0AC4D.8356723ATakeThisOuTspambah.com>, Harvell Christopher
<.....harvell_christopherKILLspamspam@spam@BAH.COM> writes
>Greetings everyone!!!  I have decided to design and build a bicycle computer
>for my senior project.  I would like it to keep running speed, running
>distance, average speed, have a temperature sensor, and a 12 hour clock.
>The speed and distance functions will be based on a pulse signal from a
>revolution counter.  The temperature sensor will need a table look up to
>access the desired information.  The 12 hour clock should be low power.  I
>have choosen, with the help of some industry professionals, the PIC16C72
>and  PICSTART Plus Programmer.
>
>Are there any Application notes available for any of these functions???  If
>so, where can I go to find them??

The UK magazine 'Everyday and Practical Electronics' did one using a
16C84, you can download the code from their ftp site 'ftp.epemag.wimborn
e.co.uk/pub/PICS' - there are quite a few PIC based projects there, and
(unlike some magazines I could name) they have the code available for
free download.

BTW, in the current issue they have started a pullout PIC tutorial using
the 16C84.
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : nigelgspamKILLspamlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\02\12@205054 by Ross McKenzie

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At 08:42 PM 2/10/98 +0000, Harvell Christopher wrote:

>>Greetings everyone!!!  I have decided to design and build a bicycle computer
>>for my senior project.
>
>The UK magazine 'Everyday and Practical Electronics' did one and  they have
the code available for free download.

Harvell,

Would this be the same as cheating?

Suspicious,

Ross

1998\02\13@110545 by ross

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Ken Pergola wrote:

> You might want to use the Dallas Semiconductor DS1621 temp sensor --
> then if you
> want to do data logging in the future, just add a I2C serial EEPROM
> (to your
> existing bus) and some more code.
>

Ken;

PMFJI but.. are you saying that the DalSemi products use the I2C
protocol?  i.e. is the DalSemi micro-LAN an implementaion of I2C? I was
under the impression it was proprietary, leading me to believe that it
was not purely I2C..

L8R/Ross

1998\02\13@155249 by Nigel Goodwin

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In message <.....2.2.32.19980213014741.008e28c4KILLspamspam.....zephyr.ses.bom.gov.au>, Ross
McKenzie <EraseMER.McKenziespam_OUTspamTakeThisOuTSENCON.COM> writes
>At 08:42 PM 2/10/98 +0000, Harvell Christopher wrote:
>
>>>Greetings everyone!!!  I have decided to design and build a bicycle computer
>>>for my senior project.
>>
>>The UK magazine 'Everyday and Practical Electronics' did one and  they have
>the code available for free download.
>
>Harvell,
>
>Would this be the same as cheating?

YES!! :-).
--

Nigel.

       /--------------------------------------------------------------\
       | Nigel Goodwin   | Internet : nigelgspamspam_OUTlpilsley.demon.co.uk     |
       | Lower Pilsley   | Web Page : http://www.lpilsley.demon.co.uk |
       | Chesterfield    |                                            |
       | England         |                                            |
       \--------------------------------------------------------------/

1998\02\14@050742 by William Chops Westfield

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   >>>Greetings everyone!!!  I have decided to design and build
   >>>a bicycle computer for my senior project.
   >>
   >>The UK magazine 'Everyday and Practical Electronics' did one
   >and they have the code available for free download.
   >
   >Would this be the same as cheating?

   YES!! :-).

Come now.  It's cheating if you simply copy major parts of the design and
software.  Otherwise it's "research."  There's a great dichotomy between
education and the real world when it comes to looking at what other people
have done along similar lines.  In the real world, people who ignore public
solutions to the problems they're trying to solve are called "idiots."

:-)
BillW

1998\02\16@000308 by tjaart

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William Chops Westfield wrote:

>     >>>Greetings everyone!!!  I have decided to design and build
>     >>>a bicycle computer for my senior project.
>     >>
>     >>The UK magazine 'Everyday and Practical Electronics' did one
>     >and they have the code available for free download.
>     >
>     >Would this be the same as cheating?
>
>     YES!! :-).
>
> Come now.  It's cheating if you simply copy major parts of the design and
> software.  Otherwise it's "research."  There's a great dichotomy between
> education and the real world when it comes to looking at what other people
> have done along similar lines.  In the real world, people who ignore public
> solutions to the problems they're trying to solve are called "idiots."

Sure... but students who copy other solutions whilst having to do it
themselves,are still called "cheats". Specially if they are seniors.

--
Friendly Regards

Tjaart van der Walt
@spam@tjaartKILLspamspamwasp.co.za
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1998\02\16@090915 by Osama ALASSIRY

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At 07:00 16/02/98 +0200, you wrote:
>William Chops Westfield wrote:
>
>>     >>>Greetings everyone!!!  I have decided to design and build
>>     >>>a bicycle computer for my senior project.
>>     >>
>>     >>The UK magazine 'Everyday and Practical Electronics' did one
>>     >and they have the code available for free download.
>>     >
>>     >Would this be the same as cheating?
>>
>>     YES!! :-).
>>

Have a look at what they did. What do you like about it? What do you hate
about it? Improve it!!!!!!! then include it in your references...
_____________________________________________________
Osama ALASSIRY  KILLspamosamaKILLspamspamqatar.net.qa RemoveMEosamaTakeThisOuTspamalassiry.com
                             http://www.alassiry.com

1998\02\17@164305 by paulb

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Osama ALASSIRY wrote:

> Have a look at what they did. What do you like about it? What do you
> hate about it? Improve it!!!!!!! then include it in your references...

 Mmmm.  One of the problems I had with my thesis (why in fact I did not
complete it!) was the requirement to research and critique previously
published designs to do similar functions.  Maybe if *I* had done that
first, I would have succeeded with the thesis!

 (Hey!  I did the study, completed all the course work, so what if I
don't have the Masters' Degree?)

 Cheers,
       Paul B.

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