Arduino starter kits

[Andre Kesteloot]

I agree, I should have checked the board's specifications
Mea culpa :-)
but I do not think that I ever said that the Arduino was the answer to
everything, did I ?
73
André N4ICK

On Monday, December 29, 2014, WB4JFI <wb4jfi1 at wb4jfi.com> wrote:

>   Guys,
> I have to say that I agree with Alberto on this.  Arduinos are NOT the
> answer to everything.
>
> My best answer to this discussion is to select the best tool for the job.
> If all that you want to do is something simple, a simple tool will do.  If
> you want to build something  more complicated, a simple tool won’t do.
> It’s that simple.
>
> I have a pretty heavy investment in Arduinos and related accessories.  I
> have at least ten Unos, two Mega 2560, several smaller versions of the Uno,
> a Due, and MANY shields and various LCD displays.  I have a lot of projects
> based on Arduinos.  There is several hundreds of dollars investment just in
> Arduinos here.
>
> But, the Arduino is VERY limited.  I have hit memory limitations, speed
> limitations, data accuracy limitations, and other problems with Arduinos
> several times.  If you want to do something more sophisticated (SDR, audio
> processing, etc), the “traditional” Arduinos, such as the Uno, just don’t
> have the power.  IT IS THAT SIMPLE!
>
> If you are looking for something to learn embedded programming on, and not
> a specific project, the Arduino is a good platform.  If you have a simple
> controller project, the Arduino MAY be a good platform. Or not.
>
> There are a LOT of amateur radio-related projects that are beyond a Uno.
> Limiting yourself to the Uno capabilities also limits what you can
> successfully do.
>
> I also have several Raspberry Pis, BeagleBone Blacks, STM32 Discovery
> boards, quite a few Xilinx FPGA boards, a Parallella, a UDOO (thanks Mike),
> and several others.  The reason why I have so many devices is that one tool
> does not fit all needs.
>
> What is this “wasting cycles” anyway?  Are cycles a limited resource that
> we need to husband?  How many carbon equivalents does each cycle use?
> Should I start creating protest signs saying “Save Our Cycles!” and “Don’t
> Be The 1% That Wastes Cycles!”.  Are we going to a million-cycle-march in
> front of the UN?
>
> I would MUCH RATHER have extra cycles available on a project.  I NEVER
> want to invest a lot of time trying to shoehorn a project into a
> hardware/software platform that is marginal or cannot do the job.
>
> I understand that some people are not comfortable with operating systems,
> such as Linux.  You can either continue to shy away from it/them, and
> thereby stay in an ever-decreasing bubble of protection, or you can start
> to actually learn about the future.  You comfort zone is also your most
> limiting factor.
>
> Keep It Simple Stupid is a very common comment.  If all that you want to
> do is KISS, all that you will ever learn to do is to KISS. hi hi
> 73 & Happy New Year,
> Terry, WB4JFI
>
>
>
>  *From:* Alberto di Bene <javascript:_e(%7B%7D,'cvml','dibene at usa.net');>
> *Sent:* Monday, December 29, 2014 11:08 AM
> *To:* Tacos <javascript:_e(%7B%7D,'cvml','tacos at amrad.org');>
> *Subject:* Re: Arduino starter kits
>
>  On 12/29/2014 3:55 PM, Andre Kesteloot wrote:
>
> *What you propose is interesting, but Arduino has many advantage when used
> as a dedicated state- engine: it does what you told it to do, and nothing
> else, and therefore does not waste cycles to perform maintenance tasks,
> because it does have an operating system such as Linux.*
>
>
> The Discovery board does not use Linux, nor any other op-sys... you
> program it "bare metal", as they say, in C language...
> you have complete control of every and each cycle of the CPU... I know, I
> used that board for prototyping the
> firmware for the Elad DUO <http://www.eham.net/reviews/detail/11933> RTX.
> It is a joy to work with, especially as the Cortex ARM M4F has a 32-bit
> floating point unit, essential for all
> those DSP computations (FFT, FIR, etc.) needed on an SDR.
>
> 73  Alberto  I2PHD
>
>
>
>
>
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