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Re: [Paparazzi-devel] I2C Questions

From: Felix Ruess
Subject: Re: [Paparazzi-devel] I2C Questions
Date: Wed, 1 Dec 2010 10:50:13 +0100

Hi Kurtis,

just a quick note, that parameter is to set the i2c device of your
microcontroller, meaning which i2c bus you connected it to, NOT the
i2c address of the sensor!
The i2c address of the ets airspeed sensor is set in

Cheers, Felix

On Wed, Dec 1, 2010 at 1:20 AM, Kurtis Kraemer <address@hidden> wrote:
> Hello,
> I just received an ArduIMU that I would like to integrate into my Tiny2.11.
> I also have Eagle Tree Airspeed and Altitude sensors that I have not yet
> integrated.
> Each of these sensors uses I2C, but I am uncertain whether or not I can use
> all of these sensors simultaneously through the single I2C bus on the
> Tiny/TWOG.
> From what I can tell from the
> wiki 
> (,
> I can set a particular I2C address for each module:
> <param name="AIRSPEED_ETS_I2C_DEV" value="i2c1"/>
> However, is there a limit to how many can be used? i.e. "i2c0", "i2c1",
> "i2c2", etc. Also, what is the parameter name for setting the ArduIMU
> address?
> Is there anything else that I need to change to get them to work together?
> As for wiring, do I just connect the SDA and SCL of each sensor in parallel
> with each other, or in series?
> Thanks!
> - Kurtis
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