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I2C GPS with NANOWii board - return to home? (quad)

Posted: Mon Jul 22, 2013 2:50 pm
by drunx
Hi guys,

I'm looking in "may be" buying i2c gps module and connecting it to NanoWii (from flyduino) fc board running multiwii.

Mainly the only reason for me to buy this module is to make use of "return to home" functionality. But i'm not exactly sure if that's possible with multiwii software or not. I did a research on the forum here, but can't find some definitive answer. If i've missed something - I apologize and ask you to point it out to me:))

I'm interested in this functionality in any form, whether it multiwii has it by default or even if there is someone who has a piece of code for that that can be "added" to multiwii.... ?

Thank you!

Re: I2C GPS with NANOWii board - return to home? (quad)

Posted: Mon Jul 22, 2013 11:50 pm
by haydent
multiwii comes with this standard, position hold, return to home, and waypoint nav

during these you can either manually control the height or engage a baro/sonar sensor (which you may already have) to do this auto

if you want it to maintain a minimum height during travel there is patch for that

Re: I2C GPS with NANOWii board - return to home? (quad)

Posted: Sat Aug 03, 2013 9:23 am
by chris_kmn
Hi drunx,

NanoWii and GPS is critical due to the fact, that USB support has to be code implemented in the mega32u4 (arduino cares for it). My experience is, that the memory of the NanoWii is to small for the GPS functions, even with the I2C GPS. I hadnabout 106% memory usage.

There are ways to exclude USB support, but then you need to use an external FTDI to program and configure the controller.

Re: I2C GPS with NANOWii board - return to home? (quad)

Posted: Tue Aug 06, 2013 9:40 pm
by drunx
Thank you guys for your replies!) I know enough to dig around these issues collecting more info!:)

Sv: I2C GPS with NANOWii board - return to home? (quad)

Posted: Fri Aug 09, 2013 7:10 am
by Ceasar
Hi
I actually just got Nanowii on a nanoquad working with i2c gps module+ublox 6M.
Also a Baro and Mag is connected on the i2c bus.
The tricky part is placement on the nanoquad, as I got interference that messed with the gps.
Had to raise the Gps a bit.
With the latest dev r1539 everthing fits on the 32u4 board, but I needed to remove a few functions I used on MW2.1.