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Posted by Morris Dovey on July 9, 2007, 12:52 pm
Steve wrote:

| That one works but I think AVR Studio is a bit more polished.  But
| then I haven't done a lot of work with either.

Sadly, it doesn't work. There's a bug in the toolset that prevents ld
from working properly. Hopefully they'll have a fix before long...


Morris Dovey
DeSoto Solar
DeSoto, Iowa USA

Posted by Steve on July 7, 2007, 11:15 pm

http://www.atmel.com/dyn/products/tools.asp?family_id `7#801

Select AVR Studio.  I think the latest is 4.12 Service Pack 4.

AVR Studio includes a simulator, GCC (the GNU Compiler Collection) and an
assembler all with a nice IDE.

You can find a lot of AVR information at:


(The Duck)

Posted by Steve on July 7, 2007, 11:45 pm
This is a good link to follow as well:

(The Duck)

Posted by Jeff on July 6, 2007, 12:25 am
 Steve wrote:

   Do I read that right as $0?

That's quite a few. I do like the idea of the one wire as it greatly
simplifies wiring. Is it possible to do that here?

I don't write in either one, but I suppose I could learn. Do you think
Ada is the better choice? I'm a web developer and I mostly write perl...


Posted by Steve on July 7, 2007, 11:43 pm

That's the way I read it.

If you look at a list of microcontrollers at Amtel:

http://www.atmel.com/dyn/products/devices.asp?family_id `7

There are a lot of smaller simpler devices, but you need to put together a
board for yourself.  If you search then net you can find examples of small
projects using these devices.

For example if you look at the ATtiny24 you get 8 single ended ADC channels.

There is only 2K of program memory and 128 bytes of SRAM but if you look up
the price on Digi-Key it is $.91 at quantity 1.  If you want to break the
bank you can get a the ATtiny84 with 8k of program memory and 512 bytes of
ram for $.90.  It isn't much memory, but we aren't talking about a complex
task either.

These are small microcontrolers that can be programmed for very specific
function.  But keep in mind... they don't come with a user interface.  But I
would think they would be perfect for turning things on and off based on a
temperature differential.

I think some of these devices are used for things like TV remote controls
and so on.

At this point I have just been looking at the devices and playing with the
simulator, I haven't been building things.  But I wish I had found these
before I bought the controller for my sprinkler system.

(The Duck)

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