xbatx
Posts: 3
Joined: Sun Jun 19, 2016 9:49 pm

smallest wireless gps?

Sun Jun 19, 2016 9:56 pm

Hello,

Does anyone happen to know the smallest and wireless gps possible that I can find to work with raspberry pi?

I am looking for the smallest possible raspberry pi that will work with the smallest possible gps.

Or...................

a gps chip that I can transmit wirelessly to a raspberry pi board or through wifi or some other type data transfer.

I love the Pi so far!!!

mfa298
Posts: 1387
Joined: Tue Apr 22, 2014 11:18 am

Re: smallest wireless gps?

Mon Jun 20, 2016 9:32 am

If you want wireless communications between the Pi and GPS I'm not sure there are that many or that they're that small. There are some bluetooth ones out there which might do the job (but unless you've got a Pi3 you'll also need a bluetooth dongle on the Pi).

The other alternative for small I can think of is to buy/make a hat using one of the common gps modules. e.g. https://store.uputronics.com/index.php? ... duct_id=81

or you could just get a module on a breakout board and connect direct to the pi
https://store.uputronics.com/index.php? ... duct_id=83

xbatx
Posts: 3
Joined: Sun Jun 19, 2016 9:49 pm

Re: smallest wireless gps?

Fri Jun 24, 2016 6:44 pm

thank you :D

xbatx
Posts: 3
Joined: Sun Jun 19, 2016 9:49 pm

Re: smallest wireless gps?

Sat Jun 25, 2016 6:55 pm

if it helps any I am trying to build a watch...

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bensimmo
Posts: 4622
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Location: East Yorkshire

Re: smallest wireless gps?

Sat Jun 25, 2016 7:55 pm

Some smartphone are as small as a pi and have GPS, could use one of them?

But the normal ublox6 are not large and can just wire direct into the gpio ports on say a zero, they are wider than a zero but less than it lenght?


How small do you need to go and what's the usage (I'm just interested)

Edit
MrBallonInTheSky has a nice tiny one
http://www.daveakerman.com/?p=310

mfa298
Posts: 1387
Joined: Tue Apr 22, 2014 11:18 am

Re: smallest wireless gps?

Sat Jun 25, 2016 10:49 pm

bensimmo wrote: Edit
MrBallonInTheSky has a nice tiny one
http://www.daveakerman.com/?p=310
That would be an earlier variation of one of the ones I linked to, although I chose one with a a different (and larger) antenna as well.

If you've got good PCB design / soldering skills you can also get the plain modules and suitable chip antenna to design your own thing, but that's a bit more advanced than the beginner level.

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bensimmo
Posts: 4622
Joined: Sun Dec 28, 2014 3:02 pm
Location: East Yorkshire

Re: smallest wireless gps?

Sun Jun 26, 2016 6:57 am

For some reason I didn't see the links and the two posts after that :?
I see there is the nano GPS and also smaller ublox8 if you search as well.


Personally I would start with a cheap ublox6 or similar. (4 to 8 quid on eBay) and get the programming and everything going.
http://www.ebay.co.uk/itm/Ublox-NEO-6M- ... SwKsRWFgG2
Though if you can spend a bit more and get one with the small antenna or with it on the board you'll save the pain of the antenna cable snapping.

Then splash out on miniaturisation

rpiowner
Posts: 10
Joined: Sun Jun 19, 2016 6:20 pm

Re: smallest wireless gps?

Sun Jun 26, 2016 9:44 am

1) gps module not very big - 16mm x 16mm 2) is use very small current draw (is reason smart watchs having GPS!) for example is 5 gram in weight, is tiny. 20 mA is big for microcontroller - battery life may can be issue. you must to consider battery usage.

But - for raspberry pi is same 1 & 2 not is true!!! You have wrote you are build watch, but even small raspberry very big for watch and have use very big current - ten multiple gps board. so you must use a microcontroller setup instead raspberry pi, or, if you must PC for process power then you use Bluetooth LTE to interface with raspberry pi. but if you are use Bluetooth you can interface also with user mobile phone for more powerful processing - mobile phone very powerful and easy develop.

for your application you are use mobile phone or no? why you want raspberry pi in watch, or if not in watch where? did you consider microcontroller.

good luck with project!

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