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MTK3339 GPS BoosterPack - Pictures


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Made this to test out the MTK3339 GPS we got through the group buy. All buyers get a free boosterpack. Thanks for making it a success.
Code: Thanks to Robg
Thanks to dkedr for providing the MTK3339 GPS footprint

Features:
- BoosterPack also acts as breakout board.
- 3d fix led. Led goes out when a fix is obtained.
- PPS/FIX/RX/TX/VCC/GND broken out.
- Boosterpack connects to RX/TX of the LP. There are also solder jumpers in case you want to use some other pins to save your serial port.

Required for v1.1
- Battery holder- thanks dkedr.

Below shows testing with the GPS. No MSP430 chip underneath. I'm using EarthBridge software to test the NMEA string.
msp430_mtk3339_gps_launchpad.png

msp430_mtk3339_gps_boosterpack.jpg

msp430_mtk3339_gps_boosterPack_launchpad.jpg

Rob's Demo on a 5110 Nokia LCD:
gpsparsed.jpeg

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Thanks. I think Dkedr and Rob need to be thanked more. I helped put all the pieces together.

Also, blame Rob for the blur. I would never have blurred my images if he did not do it to his.

 

One other thing. I'm not sure about accuracy, but the co-ordinates were good enough to show my bedroom side in a 4-apartment unit.

Capture.PNG

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Thanks. I think Dkedr and Rob need to be thanked more. I helped put all the pieces together.

Also, blame Rob for the blur. I would never have blurred my images if he did not do it to his.

 

One other thing. I'm not sure about accuracy, but the co-ordinates were good enough to show my bedroom side in a 4-apartment unit.

[attachment=0]Capture.PNG[/attachment]

 

So this thing was able to tell you where you were while indoors?

 

How long did it take to get the lock?

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  • 7 months later...

Anyone have issues with their GPS getting a lock?  I have a quick program polling the 3DFIX line and showing its state on the P1.0 LED on my v1.5 LP ... It never stops blinking.  I am indoors and this building is pretty sturdy though, brick & metal, so perhaps I should try by a window, but it's been at it for over 20 minutes and no fix!

 

I also noticed my v0.1 boosterpack seems to have the 1PPS/3DFIX silkscreen labels backwards on the 6-pin header up top; I visually traced them out and looked up the corresponding pins on the GPS.  Seems the wiring is all correct, just those labels are backwards.  Might confirm that later with a multimeter.

 

edit: Nevermind, it got a fix sitting next to a window.  Lost it pretty soon after taking it further into the building.  Must be the building then :D

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Anyone have issues with their GPS getting a lock?  I have a quick program polling the 3DFIX line and showing its state on the P1.0 LED on my v1.5 LP ... It never stops blinking.  I am indoors and this building is pretty sturdy though, brick & metal, so perhaps I should try by a window, but it's been at it for over 20 minutes and no fix!

 

I also noticed my v0.1 boosterpack seems to have the 1PPS/3DFIX silkscreen labels backwards on the 6-pin header up top; I visually traced them out and looked up the corresponding pins on the GPS.  Seems the wiring is all correct, just those labels are backwards.  Might confirm that later with a multimeter.

Will check when I get home.

My loks was within 2 minutes.

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