Testing MTK vs Ublox GPS at high bank angles with Remzibi OSD to compare inside vs outside performance at my home. in CO Springs.

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Comment by Greg on July 14, 2012 at 3:42pm
Mark also one quick question. Have you experienced any heat/ excessive power drain issues with your Remzibi OSD? Another user reported heat problems and they no longer use this in ther arducopter. Might not be as big an issue in ardupilot since there is more scope to get around these kinds of issues. Reason I ask is I like the Remzibinosd and want to run this over the Minimosd which has less features.

Developer
Comment by Mark Colwell on July 14, 2012 at 3:54pm

Greg, I compared a APM1 with OSD and Ublox 5 vs  a APM2 with MTK and then a Ublox 5 (connected to UART1 (no connections to SPI)

I wrote Remzibi OSD code so messages are sent in text format to Remzibi on UART3 (TM port and connect TM to UART0 (USB) on APM1 with OilPan

I have not yet tried on OSD APM2, I am not sure I can access required pins to connect TM to Port0 (USB) 

I also have some MinimumOSD's and will try them first on APM2

Right now the code won't compile as I have modifications to AP_GPS and Mavlink Library for Ublox sending NAV_DOP to get a better idea of the quality of gps fix.


Developer
Comment by Mark Colwell on July 14, 2012 at 4:08pm

I use a 7.2v lipo battery for OSD power, it has runs for days without issue. but a 3 cell battery will cook OSD over time.

It can be powerd with a Castle Creations BEC programmed for ~ 7.0v to eliminate a battery, but you may suffer from a brown out as power is drained by motor and servos.

Comment by Mike Schwier on July 17, 2012 at 10:03pm

The U-Center GPS evaluation software and the manual are available for download here:

http://www.u-blox.com/en/evaluation-tools-a-software/u-center/u-cen...

Comment by lisa smith on February 25, 2013 at 5:26pm

when ublox gps is plugging apm,at the same time can i connect to u-center?

so i can get .ubx flight data. 

do you have any idea?


Developer
Comment by Mark Colwell on February 25, 2013 at 8:36pm

No, only one or the other, I monitor one with U-center and one with Mission Planner

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