Keith and I both hope to be able to attend "Thunda Down Under" in
2015, and I've sent the organizers email requesting information on what
it takes to be treated as an on-site vendor.
Of course, it's always more fun to be at a launch when you have something
interesting to fly! Thus, while Keith and I might each show up with a
modest "travel rocket" of some sort... I've started pondering possible
larger "Altus Metrum" group projects. Since transporting a large
airframe to Australia would be a hassle, I wonder if a group project to
build an airframe in-country makes more sense? To that end, I'd be
pleased to know if any of our friends and customers in Australia want to
sign up to help with such a project?
My thoughts would be to engage in some group-think about project scope
and goals, then hope friends in-country would take on the sourcing and
preparation of suitable airframe materials. Depending on who wants to
participate and how tasks get taken up, we might plan to arrive a bit
early to help with any final assembly or other preparations,
installation of suitably fresh Altus Metrum electronics, etc.
So, to all our Aussie friends... does this sound like fun? If so,
please chime in with a reply. I don't expect the email associated with
such a project to be too heavy a load for this list to carry, but we can
always spawn a dedicated lists.gag.com list if I'm wrong.
I was let down by the battery last weekend. While it is probably my fault, it meant I had to swap out the TeleMetrum for a non-trackable flight computer. This led to an hour of whacking bushes so to speak in farmers fields. This is what I got the TeleMetrum to prevent. So I have some questions about the best way to care for and handle the battery. (I’m using the 900 MaH LiPO)
When I last used the device, I’d returned from the field exhausted. I just set the rocket aside with the battery still connected to the TeleMetrum. I knew this would drain the battery, but I thought it would be no worse than that. When I did take it out to charge, I found that I’d actually left it on, so it had been transmitting until it died. Oops. So I put it on to charge overnight before bringing it to the field.
I’d never actually checked it until I got to the field. The battery hadn’t charged at all. It was dead. I put it on a car charger for a little while, but I was getting nothing. So I had to swap it out for another, less capable, computer. When I removed the battery from the foam I had wrapped it in, I also noticed that it had swollen, and was no longer the flat battery I had put in.
So my questions are:
1. Is it normal for a battery to fail after being fully and completely discharged, or do I have a bad battery?
2. Is the swelling of the battery normal? If not, what would cause this?
3. What are some good ‘Best Practices’ for the care and handling of the battery?
NAR 98850 Level 2
Altus Metrum's 2015 Black Friday Event
BLACK FOREST, Colorado USA
Altus Metrum announces a special $250 EasyMega bundle for "Black Friday" 2015.
EasyMega is a heavily-featured flight computer with 9-axis IMU and 6 pyro
channels. Two of the pyro channels are configured for the usual apogee and
main deployment functions, the other four are fully programmable, including
the ability to limit pyro events to only occur when the airframe is within a
given angle from vertical for increased safety with complex projects
involving staging or air starts. EasyMega contains all the features of our
top of the line product TeleMega except for no GPS or radio link. EasyMega
is a great choice when you already have a tracking solution, or for getting
lots more data from your flights than a typical flight computer can provide.
Full details can be found on our community site at
This deal will be available from 00:00 Friday, 27 November 2015 through
23:59 Sunday, 29 November 2015. Only direct sales through our web store
at http://shop.gag.com are included; no other discounts apply.
Find more information on all Altus Metrum products at http://altusmetrum.org.
Thank you for your continued support of Altus Metrum in 2015. We're working
on some cool new product ideas, and look forward to meeting many of you on
various flight lines in 2016!
I've spent some time reworking of the Altus Metrum documentation;
constructing better html pages, fixing a pile of formatting issues and
constructing a separate EasyMini manual.
You can see a preliminary version of all of this here:
Comments welcome. I know our docs weren't as good as they could be, and
I'm hoping this is a step in the right direction.
When a Telemetrum or TeleMega are in launch mode, they're transmit only so
you should be able to receive packets on both your laptop and phone at the
From: altusmetrum [mailto:firstname.lastname@example.org] On Behalf Of
Sent: Thursday, July 30, 2015 7:11 PM
To: 'Altus Metrum'
Subject: [altusmetrum] Tele BT
This may be a dumb question but is there anywhere that describes how to know
when the TeleBT is fully charged? Also, Can a TeleBT be connected to the
Telemtrum via phone and at the same time a teledongle be connected to the
same Telemetrum via computer?
altusmetrum mailing list