[Space] Meeting Notes 2010.04.06

Christie Dudley longobord at gmail.com
Wed Apr 7 13:18:05 PDT 2010


You know, that thought hadn't occurred to me but it makes perfect sense to
have the traditional "payload" on the table.  It should  be pretty easy to
deal with batteries and charging of things we have in our hands.

One thing that would be a neat to do with the camera we usually send up
there is to create a time-lapse of the event.  It would be a cool
promotional thing for us and them after the fact.

Chris got the webcam/single board computer/wifi working completely, but it
needs a 5V power supply.  I have a battery for my phone that provides 5V on
USB that we can use, but we haven't done measurements on how long it would
last. If other folks have these it might be nice to be able to swap this
out.

We will be at Moffet tomorrow to set up and get this all going.  I'm sure we
can figure something out then.

Christie
_______
"We also briefly discussed having officers replaced by very small shell
scripts." -- Noisebridge meeting notes 2008-06-17

The outer bounds is only the beginning.
http://www.flickr.com/photos/genriel/sets/72157623376093724/


On Wed, Apr 7, 2010 at 10:54 AM, Blake Barrett <Blake at blakebarrett.net>wrote:

> I agree with Brian. The payload would better serve us on the ground where
> it can be shown and handled. We also shouldn't have any trouble tracking our
> display balloon as it will be in persistent low-altitude geosynchronous
> orbit ;-)
> I like the idea of being able to show people that amazing things can be
> done with readily available parts/components; having those things available
> to handle just reinforces that message to the kids and attendees who we are
> presenting to.
> We are showing/displaying at the education fair, not performing a live
> launch.
> Just my $(1/50).
>
> Blake
>
>
> On Wed, Apr 7, 2010 at 10:38 AM, Brian Choate <brian.choate at gmail.com>wrote:
>
>> We will have the usb set up ready to go in case the wireless does not
>> work out. The USB gear we are using is designed for working up to 64',
>> so it will work just fine for what we need. We also calculated the
>> weight into our planning.
>>
>> It doesn't make much sense to send the normal payload up (i.e. - g1's,
>> radios, gps, etc...). Those pieces would be far better as part of the
>> table top display.
>>
>> B.
>>
>>
>> Christie Dudley wrote:
>> > I REALLY think we should skip the USB and as much of our effort as
>> > possible should be put into getting wifi working.  I think Chris
>> > stayed home from the meeting to work on this, so it's not being
>> > forgotten.  It won't take much effort to get this built and working,
>> > considering he has a device that pretty much does that already.
>> >
>> > Has anyone tried to make a USB connection work through what you're
>> > talking about?  The thought of running USB that far gives me protocol
>> > nightmares.  It wasn't meant to run that far and you're going to run
>> > into frustrating glitchy behavior because of spurious and
>> > unpredictable timeouts.  The weight of the cables will not be
>> > inconsiderable and the connectors won't stay well connected.  In order
>> > to get it up to the height we were talking about, you'd need to have 3
>> > hubs - 4 segments.
>> >
>> > The alternative would be to mount the payload lower, but with only 1
>> > hub, you're going to only get about 30 feet (the protocol limitation
>> > you mention is 16.4'), and you just won't get the cool video coverage
>> > of being at height.
>> >
>> > I have the package tracker at work.  I put it in my bag when we pulled
>> > it out of the payload.
>> >
>> > I'm more than a little concerned about battery life over the course of
>> > the event.  We ordinarily plan for 5 hour flights.  This thing is
>> > going to be going for 2 days, >12 hours continuously on Saturday.  Do
>> > we have spare batteries for everything, or is there some scheme we can
>> > come up with to get them and install them if necessary?
>> >
>> > I foresee Friday night, us wanting to pull the payload down and get
>> > everything on chargers so we have full life for Saturday, at the very
>> > least.  I think I still have a spare G1 battery and we could swap the
>> > battery for the second radio (it is NOT a walkie talkie. Ahem.)  for
>> > the one we have on the payload mid-day.  I'm curious about the camera
>> > batteries, though.
>> >
>> > I know Chris was talking about getting a single board computer with
>> > built in wifi working.  We should probably just toss in a router to
>> > our kit so we can communicate to it.  We should keep in mind we might
>> > need on-site reconfiguration capabilities so we can work with any wifi
>> > they may be providing.
>> >
>> > Meredith, do you know if they will be providing wireless that we will
>> > be expected to use, or do we need to bring our own?  I think it'd be a
>> > lot better if given the choice, we use our own.  It's much easier to
>> > configure and test that way.  Also the distance is short enough that
>> > I'm not overly concerned with getting a good signal if we're able to
>> > be more or less directly beneath it, although I think Chris and I
>> > should test whatever setup we come up with just in case.
>> >
>> > Christie
>> > _______
>> > "We also briefly discussed having officers replaced by very small
>> > shell scripts." -- Noisebridge meeting notes 2008-06-17
>> >
>> > The outer bounds is only the beginning.
>> > http://www.flickr.com/photos/genriel/sets/72157623376093724/
>> >
>> >
>> > On Wed, Apr 7, 2010 at 12:16 AM, Christopher Lincoln
>> > <cclinco at gmail.com <mailto:cclinco at gmail.com>> wrote:
>> >
>> >     as we are getting short on time, set up happens on Thursday, we
>> >     decided to work with the simplest plan.  If we are able to get the
>> >     wireless webcams to work, great, if not, we will have the USB bulk
>> >     extenders as a back up.
>> >
>> >     Christopher
>> >
>> >
>> >
>> >
>> >     On Wed, Apr 7, 2010 at 12:05 AM, Chris Paget
>> >     <ivegotta at tombom.co.uk <mailto:ivegotta at tombom.co.uk>> wrote:
>> >
>> >         Wait, what happened to the wifi plan?  I've got a nice little
>> >         wireless
>> >         webcam here that only needs 2 wires to give it 5V and it'll
>> >         give you
>> >         live video over wifi.  I thought someone else was bringing an
>> >         access
>> >         point for my wifi stream to land at - what's with the USB bulk
>> >         extenders?
>> >
>> >         Cheers!
>> >
>> >         Chris
>> >
>> >
>> >         On 04/06/2010 11:57 PM, Christopher Lincoln wrote:
>> >         > Spacebridge Meeting notes 2010.04.06
>> >         >
>> >         > Yuri's Night
>> >         >  - Balloon (bring clean (and spare) and tampered one)
>> >         >  - paracord 300 feet (Brian is pickign that up)
>> >         >  - Helium (2 tanks, Nils)
>> >         >  - Nils will drop off teh helium tanks on thursday
>> >         >  - Nils will bring his 7 gallon jug will water
>> >         >
>> >         > Payload
>> >         >  - Styro bin (.7 lb)
>> >         >  - 300 ft paracord (.8 lb) (Brian)
>> >         >  - 6 pin M to 4 pin M USB adapter
>> >         >  - 3x 15' feet of USB repeater cable (1 lb per 15 ft) (Brian)
>> >         >  - 1 spare USB hub ( to bridge the 5 meter limit for USB)
>> >         [40 grams each]
>> >         >  - 1 canons for after the fact pictures [.4 lbs each]
>> >         >  - USB cam [30 grams]
>> >         >  - noisebridge banner
>> >         >
>> >         > Display table
>> >         >  - payload bus
>> >         >  - parachute
>> >         >  - G1
>> >         >  - Opentracker
>> >         >  - GPS antenna
>> >         >  - Cable harness
>> >         >  - Dipole antenna
>> >         >  - Package tracker (if found)
>> >         >  - walky talky
>> >         >  - A700 camera (Blake)
>> >         >  - paracord (Brian)
>> >         >
>> >         > Auxiliary
>> >         >  - Zipties (Brian)
>> >         >  - 12' x 12' Tarp (Brian)
>> >         >  - Latex gloves (Brian)
>> >         >  - Gaff tape (Brian)
>> >         >  - Powerstrip (provided)
>> >         >  - Table (provided)
>> >         >  - 22" LCD Monitor (Albert)
>> >         >  - laptop x2 (Christopher for projector w/ slideshow, Brian
>> >         for webcam feed)
>> >         >  - projector screen (Christopher)
>> >         >  - projector
>> >         >  - USB drive with images (Christopher)
>> >         >
>> >         > DO:
>> >         >  - Email NASA to get names on setup list(Chris)
>> >         >
>> >         >
>> >         >
>> >         >
>> >         > We are missing a cardboard box full of stuff that was
>> >         present at the
>> >         > last launch
>> >         > What we know is missing
>> >         >  - G1
>> >         >  - Package tracker
>> >         >  - balloon
>> >         >  - ziptie bag
>> >         >
>> >         >
>> >         >
>> >         >
>> >         > _______________________________________________
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>
>
> --
> Blake
> blake at blakebarrett.net
> 1 559 455 7855
>
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