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Ideas on short-range data transmission

post #1 of 9
Thread Starter 
Hey all,

I'm working on a group project for my masters degree in engineering. We are developing a set of wave/wind analysis buoys to monitor wave heights and wind speeds on a lake.

We need some way to send back data from these buoys - ideally something that could send back an analog voltage signal with very simple processing in between (like a PIC or ARM processor).

Ideas so far have been:
wifi - limited in range, complicated to install.
GSM modem + SIM card - seems expensive but maybe Im looking in the wrong place.
Radio - not sure on this one, could be a good one?

Most of the programming done on this project will be C++ and similar, so I thought this was a relevant forum wink.gif

As the main project we are creating a 3m autonomous ship, we may use a Raspberry Pi with GPS, servos and accelerometers... cool huh?

Thanks for your ideas!
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post #2 of 9
wimax!(intel)
post #3 of 9
Thread Starter 
It looks cool, but how could I integrate that into a PIC circuit?
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post #4 of 9
hell if i know!i dont know what a pic circuit is but i would use a wimax cellphone from wimax network provider and maybe ask the cell provier some kind of mobile wimax repeater (max range is 25 mile if i recall thyo so you might be in a bind.sorry if i cant give you more info!since i dont know this toy its hard to plan on something like imagination!(evil grin)

sprint and their various ally are wimax(there is abig list just google it)
post #5 of 9
Thread Starter 
No worries, thanks for the idea. I will look into it. Certainly looks like a better version of WiFi since it has higher range, but looks even more complex to work into a system.

+rep
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post #6 of 9
all smartphone have them all over the place so if you can program a android you should be fine
post #7 of 9
Thread Starter 
We dont have the budget to put smart-phones on all these buoys unfortunately redface.gif
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post #8 of 9
hahaha!i hope you areent serious lol.they re so old you ll probably have ton of them here for free if you ask .galaxy epic 4g is one
post #9 of 9
Radio transmitters should be fairly cheap and easy to implement I would think smile.gif
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Ol' Sandy
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