[Space] the APRS gear hath arrived

Matt Sweeney mattswe at gmail.com
Fri Feb 5 08:22:20 PST 2010


Try serial# 1028419005 from a broken SD400 I have. Also, there seem to be
some old firmware versions available (http://chdk.wikia.com/wiki/SD400)




On Thu, Feb 4, 2010 at 10:12 PM, Mikolaj Habryn <dichro at rcpt.to> wrote:

> Sadly, it looks like the SD400 I bought off ebay has too recent a
> firmware version to be compatible with CHDK. I'm trying to find a way
> to downgrade firmware but getting no joy - Canon won't let me download
> their software without a valid serial number, and the one on this
> camera is faded into illegibility.
>
> In short, we get no time lapse photographs with this, although we can
> start it recording video as we launch.
>
> m.
>
> On Thu, Feb 4, 2010 at 5:20 PM, Mikolaj Habryn <dichro at rcpt.to> wrote:
> > (also arrived: two more balloons, to be sure, to be sure)
> >
> > On Thu, Feb 4, 2010 at 4:17 PM, Mikolaj Habryn <dichro at rcpt.to> wrote:
> >> I'll bring it by Noisebridge around 8.30 tonight. We have a pair of 5W
> >> transceivers (ham license required to operate, so easy on the trigger
> >> fingers :), a pair of APRS trackers, and a Garmin GPS.
> >>
> >> Things to do:
> >> * solder up the opentracker kits
> >> * solder cables to connect tracker to radio
> >> * upgrade firmware on Garmin GPS, make sure it's in aviation mode (and
> >> whatever else it says to do on the argentdata product page for it)
> >> * connect one of the radios to a laptop
> >> * power tracker off lab power supply
> >> * bench test - measure tracker current draw, confirm we get position
> >> data end to end
> >> * hook up antenna that Christie bought
> >> * work out battery supplies for tracker (has an on-board regulator,
> supposedly)
> >> * distance test (across the bay?) - probably for Saturday
> >>
> >> I also have an SD card for the camera that's in the balloon box and
> >> will bring my universal lithium charger. The pressure sensors are in
> >> the box as well, and have a 6 pin SIP connector that ought be simple
> >> to connect up to the opentracker, and the final bonus points shall be
> >> awarded to whomever builds a trivial voltage divider that will let us
> >> monitor voltage and current draw from the battery pack via the
> >> tracker.
> >>
> >> m.
> >>
> >
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