Micro GPS for Nikon D2X D2HS D200 Project

Started May 16, 2006 | Discussions
Viamar Forum Member • Posts: 91
Re: Micro GPS for Nikon D2X D2HS D200 Project

Yes, I was thinking about the use of the PIC to save energy in some way : storing the last location for an amount of time, switching on the GPS board every N minutes and so on. Obviously should be better having the module always on, but the power...

In my case I prefer the bluetooth solution just because I already have the SirfstarIII module (Realtek), but I think the best solution is the use of an all-in-one module and the MB-D200 to get the extra power required.

Ciao, Viamar from Rome
--
http://www.viamar.org/eng

Viamar Forum Member • Posts: 91
Re: different approaches

Thanks for the suggestion d70_europe!

Yes, another way is the "wireless proprietary" link. We can use two cheap (~$20 both RX and TX) RF module to link the external (and well powered module) with the camera. In this case we can certainly control in a better way the power on the camera side without fix lost.

Viamar from Rome
--
http://www.viamar.org/eng

DURET-LAMOUROUX Regular Member • Posts: 289
Re: A similar product already in maket

Worse than RED HEN!
--
Francois

Ken Plotkin Senior Member • Posts: 1,682
Re: At USD398 + USD45 Shipping, Yes ! (nt)

Didn't az_av8r say that the chip he's using costs $75?

There's a rule of thumb that the retail price of a product is about five times manufacturing costs. So even though $398 may be too high to be successful, it's not out of line and there isn't much room to make it lower.

OP az_av8r New Member • Posts: 13
Re: At USD398 + USD45 Shipping, Yes ! (nt)

Ken Plotkin wrote:

Didn't az_av8r say that the chip he's using costs $75?

I did. But I got it retail an only purchased 1. I would assume that if I went directly to the MFG in Taiwan and ordered 100+ I could cut the cost significantly.

The killer is still the cable from Nikon.

Rgs,

-Andy

Bob Grace Regular Member • Posts: 258
Re: A similar product already in maket

DURET-LAMOUROUX wrote:
Worse than RED HEN!

Since I would eventually like to buy a unit of this type, could you explain what is wrong with each of these units?

Thanks,

Bob Grace
PBase Supporter

Gary Ratay Regular Member • Posts: 248
Re: Micro GPS for Nikon D2X D2HS D200 Project

What parts are you using? Any possibility of using one of the GPS engines that output TLL?

Joseph S Wisniewski Forum Pro • Posts: 34,130
Cable - cut MC-23 in half

d70_europe wrote:

I'm about to do the same. First problem I have is finding the right
cable. Unfortunately the cheap from China delivered remote release
cable was not as promised.

Get a Nikon MC-23 camera to camera sync cord. Cut it in half, and you've got two GPS cables, just the right length for the hot shoe. Make two units, and sell one (the less pretty one) for a few $ profit.

I would like to use power from the camera too. Did you take the
regulated +5V from the camera? I wouldn't like to do so, especially
because there is only power while the metering system is on?!
And did you just use the GPS receivers TTL output signal right into
the camera?
Additional comment: I think yours is still too large

Use a real hot shoe connector, add a small circuit to pulse 1 amp for 10 microseconds through four IRLEDs so it can also trigger slave flashes when used on a D2X.

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Congratulations to the Oilers.

Detroit Pistons - Number 1 in the NBA!
Sixty-eight and eighteen, we're gonna stomp some Texan!

Ciao!

Joe

http://www.swissarmyfork.com

 Joseph S Wisniewski's gear list:Joseph S Wisniewski's gear list
Canon EOS 5D Mark II Nikon D90 Nikon D2X Nikon D3 Nikon D100 +43 more
Joseph S Wisniewski Forum Pro • Posts: 34,130
Remote jack, wire it Canon style!

d70_europe wrote:

Jason Goldberg wrote:

Your solution looks ideal, except that you lose the ability to run a
remote shuttler release (the one advantage of the MC-35 kit).

Why not including a simple small 3-pin stereo earphone plug? That
will do the job for connecting an additional remote (mabye the one
from which the cable for the GPS receiver was cut off).

Well, I cut mine from a Nikon MC23 (camera to camera cord) so that's out.

The best thing to do is wire the remote jack Canon style. They use a 3 pin stereo headphone jack for their remotes. Much more approachable than the Nikon connector.

-- hide signature --

Congratulations to the Oilers.

Detroit Pistons - Number 1 in the NBA!
Sixty-eight and eighteen, we're gonna stomp some Texan!

Ciao!

Joe

http://www.swissarmyfork.com

 Joseph S Wisniewski's gear list:Joseph S Wisniewski's gear list
Canon EOS 5D Mark II Nikon D90 Nikon D2X Nikon D3 Nikon D100 +43 more
Bob Grace Regular Member • Posts: 258
Re: Cable - cut MC-23 in half

Sorry for being an electronic ignoramus, but does that put us over the top on this? Does that mean that we can have a capable, working GPS function for around $200 US?

If so, please sign me up.

-- hide signature --

Regards,

Bob Grace
PBase Supporter

Joseph S Wisniewski Forum Pro • Posts: 34,130
Nikon GPS accuracy....

Robin Casady wrote:

Very nice. Looks like a much better solution than anything else going.

You could mount a flash shoe on top of the box, unless it needs to
be clear for reception. A flash shoe with the contacts would be
even better.

Too bad Nikon used such low precision for the storage of GPS data.
IIRC it is only good for something like a radius of 70 ft. (or was
that dia.?).

They fixed that on D200. Hopefully, the next D2X/D2Hs/D2H firmware will also fix it.

We need to bug Nikon on that one.

-- hide signature --

Congratulations to the Oilers.

Detroit Pistons - Number 1 in the NBA!
Sixty-eight and eighteen, we're gonna stomp some Texan!

Ciao!

Joe

http://www.swissarmyfork.com

 Joseph S Wisniewski's gear list:Joseph S Wisniewski's gear list
Canon EOS 5D Mark II Nikon D90 Nikon D2X Nikon D3 Nikon D100 +43 more
DURET-LAMOUROUX Regular Member • Posts: 289
Re: A similar product already in maket

The price!
--
Francois

Bob Grace Regular Member • Posts: 258
Re: Micro GPS for Nikon D2X D2HS D200 Project

Thank you for starting this thread. I'm currently working on a plant book that could really benefit from having the shot coordinates in the EXIF.

I almost ordered a Red Hen, but it was just too expensive. So is the other commercially available unit mentioned here. If my guesstimation is correct, we could make our own setup complete with a Holux Slim 236 for around $200.

It would be very helpful if, after you have perfected your setup, you could start another thread. I know I would be happy to purchase one from you or fashion my own based on your design.
--
Regards,

Bob Grace
PBase Supporter

BetaHal Forum Member • Posts: 63
A cheap bluetooth option...

...would be to adapt something like this 58 Eur. embedded Bluetooth-Serial Module:

http://www.kanda.com/index.php3?cs=1&bc=direct&bw=%2Fproducts%2FSena%2FPARANI-ESD01-1.html

The range of these modules with the default stub antenna (included) is 100m.

n_shi Junior Member • Posts: 28
How about including compass??

Wouldn't it be great to have a compass buit in?
Whare and how would the orientation data be saved in the exif, I do not know...
Here is a spec on a compass chip - costs around 25 USD.

http://www.speakesensors.com/PDF/scl0041.pdf

Jason Goldberg Regular Member • Posts: 149
Re: How about including compass??

The Nikon firmware doesn't store the heading data, unfortuantely.

 Jason Goldberg's gear list:Jason Goldberg's gear list
Sony RX100 IV Nikon D750 Nikon AF-S Nikkor 17-35mm f/2.8D ED-IF Nikon AF Nikkor 50mm f/1.4D Nikon AF-S Micro-Nikkor 105mm f/2.8G IF-ED VR +3 more
d70_europe Senior Member • Posts: 1,208
Re: How about including compass??

Jason Goldberg wrote:

The Nikon firmware doesn't store the heading data, unfortuantely.

Yes. But the heading from the GPS receiver wouldn't be helpful anyway, therefore really an additional sensor chip would be needed.

Storing it would be theoretically possible. Maybe the GPSAltitudeRef field could be used (should be zero anyway?!) - or the (form a NMAE receiver unused?) GPSMapDatum field.
Werner

d70_europe Senior Member • Posts: 1,208
How much delay is acceptable?

I'm still not sure which GPS solution would be best.

I would be interested to know how long the delay between activating the camera's metering system and the actual shutter release (where the GPS position should be available) would be acceptable. Not much in my opinion?! What do others think?
Werner

cosmocranos New Member • Posts: 2
Re: A cheap bluetooth option...

yes, that's what I use already. (see thread)

Cheers
Roland

AnimalsExpression New Member • Posts: 24
Cheap GPS Option, I am I missing something?

I am heading to Yellowstone next month. I would like to get a GPS hooked up to my D200. Am I correct that If I have a Geko 301 then all I would need is a Nikon MC-23 cable and a Garmin data cable and splice the two together? The only tuff part would be to splice the correct wires together.

I know this may not be pretty but I am just looking for something to get me by for the trip.

I do not have the GPS yet but plan on getting on before I go. I plan on doing some camping and hiking and do not want to be one of those city folk that gets lost, can anyone recommend one that they like.

Marc

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