Re: Cheap tracker for possible one-way mission
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To add to Mark's request...
If you find yourself in the Valentine area of Nebraska around August 9th, we could always use your help chasing after two balloons.
It's probably not feasible given the time frame but I'm working on
an Arduino (Trackuino) based tracker for a floater. It's definitely
a DIY project as it's assembled from individual parts. The
assembled weight should be around 35-40 grams and will run for about
5 hours with a 1 minute beacon rate on a 150mah lipo and up to 2
days if the beacon rate is reduced. I can post the details and code
if anyone is interested.
The parts required are:
Arduino 3.3v 8Mhz
NEO6M GPS module
SR-FRS-1W radio by Sunrise Electronics
DS1820 temperature sensor(s) (Optional)
Solar cells and charge controller (Optional)
3 resistors, 3 capacitors (Some are optional)
150 mAh (or larger) Lipo pack
73, Bruce - VE5BNC
On 2018-07-05 2:59 PM, Mark Conner
and I are looking at doing a launch from the Nebraska Star
Party on August 7 from south of Valentine, NE. The region is
fairly devoid of roads, and much more populated with cattle
and rough terrain than people. We are considering a
recovery-optional mission for this flight - if it's too
difficult to retrieve, we'll skip it.
I have not
kept track of the lightweight and low-cost trackers that are
out there, and some are probably still in beta. Ideally I'd
like something under $100 to keep our expense down should we
choose not to recover it. Any ideas? Some of the lower-cost
devices seem to have gone out of production.
needs a GPS with ~120 kft altitude capability, but can be
relatively low-power. It can also be on 144.39 since the
ground APRS infrastructure is nil, so no competition with
other stations. 1 or 2 lithium AA batteries for power would
be ok as it only has to last a few hours. Telemetry is not a
big deal for this flight either. Pre-configuration is OK too,
I don't think we'll need to fiddle with the setup. We may
have to work out timeslotting with the other flight if
necessary, but I think we can do that in advance too.
Feel free to
contact me off-list if you'd rather.
73 de Mark
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