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Permalink Reply by Martin Seven on October 28, 2010 at 12:09am

It's the exact same sensor, so yes, of course you can.

The only difference (for you) is that the DIYD unit has an onboard voltage translator - you won't be able to hook up the Sparkfun (3V) unit to a 5V Ardupilot directly. It would kill the sensor.

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Permalink Reply by Alex on October 28, 2010 at 10:47am

Many thanks, Martin, for your information and support.

Will pay special attention to the voltage regulation issue when I use the Sparkfun unit.

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Permalink Reply by Carlito Oliveira on October 28, 2010 at 11:07am

And u have to add two pull up resistors to use de i2c bus. see the topics bellow:

http://diydrones.com/forum/topics/automatic-nulling-of?id=705844:To...

http://diydrones.com/forum/topics/sparkfun-magnetometer-mount-on?xg...

good luck!

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Permalink Reply by Alex on October 28, 2010 at 6:35pm

Woo, the posts are exactly what I am looking for, so detailed and professional.

Many thanks, Carlito, for sharing them with me.

Will buy and test in my ArduIMU and get back to you guys on my result.

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DeveloperPermalink Reply by Jean-Louis Naudin on November 7, 2010 at 1:55pm

Hello, I need some help here about the magnetometer. I have a HMC5843 (the red board) from Sparkfun and I would like to reset de magnetometer to its factory default state, because after a setup error, the magnetomer gives me now bad values (I.e.: MagX:-32, MagY:32, MagZ:-32,)...
Could someone can give me an answer here.
Thanks for your help,
Jean-Louis

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