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Posted by mophobia@gmail.com on October 6, 2006, 9:26 pm
Please log in for more thread options
Hi,
After a few months of reading webpages about microcontrollers, I
figured it's time to just jump in and get my feet wet.
So, my question: if I purchased the following
http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
http://www.futurlec.com/ET-AVR_JTAG.shtml
http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
http://www.sparkfun.com/commerce/product_info.php?products_id=245
and downloaded:
http://winavr.sourceforge.net/
Do I have absolutely everything that I would need to measure the
temperature of a room?
I have fairly versed in the C programming language. Using winAVR will
not be a problem.
I am doing this to learn more about hardware. So I figure taking the
temperature of a room would be a good start.
Your input is greatly appreciated! Thanks in advance.
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Posted by Mike Silva on October 7, 2006, 10:39 am
Please log in for more thread options
mophobia@gmail.com wrote:
> Hi,
> After a few months of reading webpages about microcontrollers, I
> figured it's time to just jump in and get my feet wet.
>
> So, my question: if I purchased the following
> http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
> http://www.futurlec.com/ET-AVR_JTAG.shtml
> http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
> http://www.sparkfun.com/commerce/product_info.php?products_id=245
>
> and downloaded:
> http://winavr.sourceforge.net/
>
> Do I have absolutely everything that I would need to measure the
> temperature of a room?
> I have fairly versed in the C programming language. Using winAVR will
> not be a problem.
> I am doing this to learn more about hardware. So I figure taking the
> temperature of a room would be a good start.
>
> Your input is greatly appreciated! Thanks in advance.
To start with, while I have used AVRs and AVR Studio, I haven't used
WinAVR or any of the hardware you list, so I might be wrong in saying
that what you have listed seems like it will all work together. BTW, I
think you meant to include http://www.futurlec.com/ET-AVR_Stamp.shtml
in your list. #s 1 and 3 are the same link. But yes, that corrected
list would seem to have everything you need. FYI, you might find it
easier at first to use an analog temperature sensor like the National
LM35, which puts out a 10mV/degree C output which you can read with one
of the analog inputs in your system. Just a thought.
As far as programming, my recommendation would be to try and program
some simple applications in assembler first, before tackling the whole
subject of getting compiled code onto your board. If you want to learn
about microcontrollers I think you need to understand programming them
in assembler before you move to C. The JTAG module says it will work
with AVR Studio. I don't know what would be involved in using it with
WinAVR. Best bet is to confirm with Futurlec that what you have
proposed will all work together.
How will you display your results? Looks like you would have to send
them out the serial port back to your PC. At some point you might want
to add an LCD display and a matrixed keypad to your setup.
Oh, and prepare to get addicted. Good luck!
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Posted by mophobia@gmail.com on October 7, 2006, 6:19 pm
Please log in for more thread options Thanks for suggesting a LCD display. It would be nice to use that
instead of having a PC read back the results.
I do have a few quick questions though:
If I purchased the following:
http://www.sparkfun.com/commerce/product_info.php?products_id=255
... would there be any LCD connectors available to connect the LCD
display to my prototyping board? If so, do you have any
recommendations?
Or should I just solder leads to the 16 pins?
...and you are right. This is becoming addictive. So much for going to
bed early.
Mike Silva wrote:
> mophobia@gmail.com wrote:
> > Hi,
> > After a few months of reading webpages about microcontrollers, I
> > figured it's time to just jump in and get my feet wet.
> >
> > So, my question: if I purchased the following
> > http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
> > http://www.futurlec.com/ET-AVR_JTAG.shtml
> > http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
> > http://www.sparkfun.com/commerce/product_info.php?products_id=245
> >
> > and downloaded:
> > http://winavr.sourceforge.net/
> >
> > Do I have absolutely everything that I would need to measure the
> > temperature of a room?
> > I have fairly versed in the C programming language. Using winAVR will
> > not be a problem.
> > I am doing this to learn more about hardware. So I figure taking the
> > temperature of a room would be a good start.
> >
> > Your input is greatly appreciated! Thanks in advance.
>
> To start with, while I have used AVRs and AVR Studio, I haven't used
> WinAVR or any of the hardware you list, so I might be wrong in saying
> that what you have listed seems like it will all work together. BTW, I
> think you meant to include http://www.futurlec.com/ET-AVR_Stamp.shtml
> in your list. #s 1 and 3 are the same link. But yes, that corrected
> list would seem to have everything you need. FYI, you might find it
> easier at first to use an analog temperature sensor like the National
> LM35, which puts out a 10mV/degree C output which you can read with one
> of the analog inputs in your system. Just a thought.
>
> As far as programming, my recommendation would be to try and program
> some simple applications in assembler first, before tackling the whole
> subject of getting compiled code onto your board. If you want to learn
> about microcontrollers I think you need to understand programming them
> in assembler before you move to C. The JTAG module says it will work
> with AVR Studio. I don't know what would be involved in using it with
> WinAVR. Best bet is to confirm with Futurlec that what you have
> proposed will all work together.
>
> How will you display your results? Looks like you would have to send
> them out the serial port back to your PC. At some point you might want
> to add an LCD display and a matrixed keypad to your setup.
>
> Oh, and prepare to get addicted. Good luck!
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Posted by Mike Silva on October 7, 2006, 6:51 pm
Please log in for more thread options
mophobia@gmail.com wrote:
> Thanks for suggesting a LCD display. It would be nice to use that
> instead of having a PC read back the results.
>
> I do have a few quick questions though:
> If I purchased the following:
> http://www.sparkfun.com/commerce/product_info.php?products_id=255
>
> ... would there be any LCD connectors available to connect the LCD
> display to my prototyping board? If so, do you have any
> recommendations?
>
> Or should I just solder leads to the 16 pins?
>
> ...and you are right. This is becoming addictive. So much for going to
> bed early.
The connector on the AVR board looks like a 2x7 header (I think that's
it down in the lower right of the board picture, with the red LED and
blue LCD contrast adjustment pot right above it. The display doesn't
use a 2x7 connector, but rather a 1x16. What I'd do is get a 2x7 cable
with connector, and just solder the wires on the other end to the
display. If you want you could add a 1xsomething header to the display
so you're not soldering to the display itself each time you need to
replace the wires if they break. But I don't think that's necessary.
Solder the wires (check 3 times that you've got the correct wire for
each connection!) from the cable to the display, and then solidify the
whole thing with hot glue and you shouldn't have a problem with the
wires breaking. Oh, did I mention make sure you've got the right cable
wires connected to the display connections? :) It might be confusing
going from the 7x2 to the 1x16 connector, and of course you'll find
that two pins remain unconnected on the display. Those are for the LED
backlight, which you'll want to connect up (un-backlit displays are
unpleasant to read). It looks like there's a 2-pin LED backlight
connector on the AVR board right above the 2x7 connector, so you'd wire
that connector to the backlight pins on the display. If you get a 2x7
cable that's long enough and has connectors on both ends, you can cut
it in half and have a spare. Here's the type of cable:
http://www.mouser.com/catalog/627/863.pdf
This is just guesswork without the specs on the AVR board (too bad they
don't have the manual for the board on the website), but I'm pretty
confident it's right.
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> After a few months of reading webpages about microcontrollers, I
> figured it's time to just jump in and get my feet wet.
>
> So, my question: if I purchased the following
> http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
> http://www.futurlec.com/ET-AVR_JTAG.shtml
> http://www.futurlec.com/ET-AVR_Stamp_Board.shtml
> http://www.sparkfun.com/commerce/product_info.php?products_id=245
>
> and downloaded:
> http://winavr.sourceforge.net/
>
> Do I have absolutely everything that I would need to measure the
> temperature of a room?
> I have fairly versed in the C programming language. Using winAVR will
> not be a problem.
> I am doing this to learn more about hardware. So I figure taking the
> temperature of a room would be a good start.
>
> Your input is greatly appreciated! Thanks in advance.