This one is under 20 dollars and has self calibration, user defined zero.position. Can.some.one look at this and tell.me if ezb can read the signal in a useful way?

http://www.ebay.com/itm/Arduino-Electric-Digital-Compass-Sensor-transducer-Module-Compatible-Robot-New-/221089503297?pt=BI_Electrical_Equipment_Tools&hash=item3379f61841

I like the LEDs around the edge showing the direction. Its hard to say if its straightforward to intergrate to the EZB it doesn't say anywhere that I can find that its I2C probably isn't.

The Sure Electronics DC-SS503V100 already added by DJ to EZB is a better bet but difficult to obtain now as it looks like discontinued stock (in the UK in any case)

The device I like is SparkFun Compass Module - HMC6352 Product Code: SEN-07915 which has I2C and all the documentation perhaps someone on here has already added it to EZB or has another opinion

Found this Arduino code for it. (Might point us in the right direction) ;-)

Looks like it is serial, so it should work with the EZ-B if configured correctly.

#include 
#include 
void setup()
{
    Serial.begin(9600);
}
void loop()
{
     int i;
     compass c;
    i=c.data(2,3);
    Serial.println(i);
    delay(100);
}

Here's an Ebay link for the one DJ uses, orded mine a few weeks ago.

the link

Thanks budeI0 looks like its from China let us know when you get it please

budel0 go! I was not able to find it on ebay and here it is! I'm also waiting to see if it works well, I guess that somehow affect the magnetic fields of the speakers if they are located near the sensor. I have also read in the tutorial DJ i2c connection cables must be short.

I find it ironic it comes from "sure" electronics. Lol It took me a few minutes but I found the English version so I could read.it. 15 dollars is not a bad price.
http://www.ebay.com/itm/Dual-axis-Magnetic-Sensor-Module-UART-I-2-c-Interface-/230643656408?pt=UK_BOI_Industrial_Automation_Control_ET&hash=item35b36ee6d8

So I must use code there's no ARC option for a I've compass?