Rather than speaking in generalities why don’t you simply suggest an alternative when somebody asks?

 

For example would you care to cost out your suggestions?

 

GPS:

            GPSstix $130

            Basix 200 $99

            Software $0

            Oh yeh – and some notes on why you need a bit of horsepower to do decent GPS http://www.gpstk.org/pub/Documentation/GPSTkPublications/Salazar-D-Rapid-Open-Source-GPS-software-development-v2.pdf

 

RC, Gyro Tracking

            Agreed – you can do this with a PIC – and if that’s all – fine.  Most people want to do more.

 

Serial LCD

            Again – could do this with any microcontroller – as long as you’re running a custom application.

            If you’re developing your own it’s MUCH easier to use printf() and a standard LCD. 

            Serial LCDs generally suck at speed and flexibility (I’ve worked with several).

            And decent ones are not very cheap.

 

GSM applications

            As long as you’re not building a graphic phone interface you definitely could use something else.

 

Oh yeh – and why else would I want to use a Gumstix?

 

#1 Standard C interface which I’ve used for years (or CPP)

#2 Debugging doesn’t hose the processor at all (like it does PIC)

#3 I can use all my own code that I have without modification

#4 Excellent technical support via the email list (still looking for the stable verdex version however)

#5 All components available from one source

#6 32-bit processing

#7 Flash memory on board (and quite a bit of it comparably)

#8 MMC Card support out-of-the-box

#9 No emulator needed

 

___________________

Michael D. Black

Essex

black@essexcorp.com


From: gumstix-users-bounces@lists.sourceforge.net [mailto:gumstix-users-bounces@lists.sourceforge.net] On Behalf Of Demetris Zavorotnichenko
Sent: Sunday, October 28, 2007 7:46 AM
To: General mailing list for gumstix users.
Subject: Re: [Gumstix-users] Why Gumstix ?

 

I appriciate the feedback about the question. And i quess i undersnad that some people need Linux machine to work with small projects. but in some cases as i have seen on the mailing list some projects could be done with $12 (a microcontroller and some parts)

 

and not with $100

 

Yeah sure it's nice to have a PC on the palm of your hand and i agree that you can do anything with it (almost)

 

But still as i said before there are allot of projects that could be done in 1/100 of the price with less knowlage (linux, microprocessor programming).

 

 

Demetris Z.

 

 

----- Original Message -----

From: Michael Caughey

To: General mailing list for gumstix users.

Sent: Saturday, October 27, 2007 10:50 PM

Subject: Re: [Gumstix-users] Why Gumstix ?

 

Its a great platform for many things.  Consider a UAV for instance, You need to process many different telemtry inputs, process much information to make appropirate flight adjustments base on flight commands and then continously update flight controls.  The more often you can do this per second the more accurate your flight will be. 

 

But why Gumstix for simpler projects?  Well I think Bang for the buck matters here.  These platforms are extremely inexpensive.  While controllers like PIC and others can be pruchased for ~$10, you have many other tools which cost money.  The smaller micro controllers take a bit more in the way of electronics understanding to work with.  I think the bottom line is that the folks at GumStix priced their product just right that makes ideal for people to pick up and get started.  They do so much, and many smaller project are just stepping stones to learning what these controllers can do.  As the experience builds so does will the projects attempted. 

 

As well if I'm developing a larger project, I'm certainly not going to try to describe the entire project to get one small piece working.  So while it may seem that there are only small project being built many of us are undertaking much larger projects.

 

I hope this helps,

michael

 

----- Original Message -----

From: Demetris Zavorotnichenko

To: Gumstix Sorce forge forum

Sent: Saturday, October 27, 2007 11:36 AM

Subject: [Gumstix-users] Why Gumstix ?

 

 

Hi guys.

 

I have a question that i have been wanting to ask for a long time now.

 

I don't want to get anyone offended or anything like that, i have been using Gumstix for some of my projects my self.

 

I just have been looking on this mailing list for a while and i have seen some applications in which a Microprocessor with 400 MHz is just not nessesary.

 

Like for instance:

 

GPS tracking.

 

RC, Gyro tracking (with servos)

 

Serial LCD connection.

 

GSM applications. - Data transfer.

 

I mean, take for example The Gallileo Baloon project, no offence, a nice idea but why would someone need a 400 MHz processor to tell a Camera to take a photo and send GPS coordinates with a GSM module ?

 

Or people are playing with Robots that work on Servos (Like from Lynx Motion)

 

Mhy would someone need to go and set up a buildroot for a linux environment so that he could move 6 - 12 servos in a sequence or reacting to Gyro data ?

 

 

I don't want to offend anyone and maybie most people use this machine for better use. But for those who don't, Could you please explain why ?

 

 

Maybie i don't know much about Hardware or if there is a reason that a 200 - 400 MHz processor is needed then please explain that reason to me.

 

Demetris Z.

 

 


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