Yeah, I'll get a coffee cup.
I do what to talk more about the Pixhawk and why it would make a good
rocket flight controller and WHY rocketeers won't take advantage of it I
don't know.
But I will stay focused on the test stand it's more right now.
-------- Original Message --------
Subject: [AR] Re: Test Stand DAQ
From: Nathan Bergey <nathan.bergey@xxxxxxxxx>
Date: Wed, December 16, 2015 1:08 pm
To: arocket@xxxxxxxxxxxxx
Thanks Lloyd!
I feel like this project needs at least one more rev (and a lot more
documentation) to be really stable. But it works! We're using it for a
few things already.
Having a simple python library where you can plug the board in and ask
for data, then get a stream of data, is really great. Simple and
no-frills.
We're still running our crowdfunding campaign for the upcoming year ;)
http://www.portlandstate-foundation.org/crowdfunding?cfpage=project&project_id=11930
-Nathan
PSAS
On Wed, Dec 16, 2015 at 12:00 PM, Lloyd Droppers <ldroppers@xxxxxxxxx> wrote:
Nathan,
Looks nice, a fair bit nicer than the Arduino based things that I bodged
together. And if you used python for programming probably easier to learn
than the monstrosity that is LabView. And importantly it provided the
reminder I needed to actually contribute to PSAS.
Thanks.
Lloyd
On Thu, Dec 17, 2015 at 8:42 AM, Nathan Bergey <nathan.bergey@xxxxxxxxx>
wrote:
Yeah, LabJack/Labview is standard. If you just want to get started
without any fuss, do this.
For some reason (...well, for the specific reason that LabJacks are
god awful to actually use) we built our own last year. It's still a
work in progress, but Andrew really wanted something that could be
reusable for lots of people and better than labview.
And I made them make a web page for it:
http://marionette-daq.github.io/
-Nathan
On Wed, Dec 16, 2015 at 11:28 AM, Lloyd Droppers <ldroppers@xxxxxxxxx>
wrote:
Yep, LabView coupled with National Instruments hardware is the defacto
standard, at least in the NewSpace section of rocket testing. The main
problem is the cost, which can be as low as ~$1000 for the extreme low
end
up to ~$5k by the time you were happy with the system for running a
rocket
test stand. If you go that route the cDAQ chassis and module system if a
reasonable starting point
http://sine.ni.com/nips/cds/view/p/lang/en/nid/208990
I would highly recommend a microcontroller system though, especially if
your
plan is to eventually fly the rocket, as you won't be flying a NI board
:)
There are a lot of options, Arduino is probably the best known and it is
a
good bet for a start. I documented a very simple arduino leonardo base
DAQ
that might help you get started at
http://projectearendel.com/home/documentation/
Sensor arrays are not standard.
Lloyd
On Thu, Dec 17, 2015 at 6:56 AM, Pierce Nichols
<piercenichols@xxxxxxxxx>
wrote:
The most common software in the world for this sort of thing is
probably
LabView. LabView is commercial software and its relentlessly visual
paradigm
takes some getting used to for those more used to conventional
programming
languages. That said, it's a very powerful tool and it encapsulates a
lot of
tricky stuff.
As for common hardware and sensors... no.
-p
On Wed, Dec 16, 2015 at 9:47 AM, Monroe L. King Jr.
<monroe@xxxxxxxxxxxxxxxxxx> wrote:
Is there a standard DAQ and sensor array used by most of you guy's on
the list?
Is there a standard software used?
The reason I am asking is because I want to use what most of the
guy's
use and understand. Sure I can come up with something but I would
prefer
something the most people could work with.