Spacers, and small nuts and bolts.  thats working fr me.
----- Original Message -----
From: Demetris Zavorotnichenko
To: General mailing list for gumstix users.
Sent: Sunday, October 28, 2007 1:40 PM
Subject: Re: [Gumstix-users] Why Gumstix ?

Just a note on the UAV part of 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."
 
 
A solution as  Gumstix is pretty optimum for a UAV only in a case where you would test it and do your programming.
 
When used in the field though it becomes a problem.
 
The Main problem is the 60, 90, 120 pin connectors.
 
Most UAV's are made with Petrol Engines (since they consume less fuel and fly longer).  When Gumstix is placed on top of for instance a Custom Board or Robostix then when you start your baby up all those connectors, parts start to shake off, get loose. Gumstix has to be pretty tight on the PCB and probably allot of RESIN and other antivibration equipment has to be used so that PCB stays safe and untouched.
 
I had similar boards shake the hell out of them when a PPiston engine is running.
 
I don't know about you guys but i haven;t figured a way to make those connectors work yet.
 
Any suggestion on that subject would be greate.
 
 
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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