[Space] Meeting Notes 2010.04.06

Christopher Lincoln cclinco at gmail.com
Wed Apr 7 14:01:23 PDT 2010


Sweet! then we can check everything Thursday when we get there for set up.
^_^

time-lapsing the photos would be cool. Hopefully the balloon will not move
much and our pictures will be stable.

Christopher


On Wed, Apr 7, 2010 at 1:18 PM, Christie Dudley <longobord at gmail.com> wrote:

> 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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