Magnetometer combined with GPS problem

Hi I have an LSM303DLH Magnetometer i got from Sparkfun (http://www.sparkfun.com/products/9810)

and my GPS is the FV08 or EB85 by SANJOSE

I used the tinygps library for obtaining the GPS dataand I got another library for my magnetometer

Problem is when

FailSafe Mux availabilty

Hi

Does anyone know when the failsafe MUX will be available again?

its been on back order for more than 3 weeks

http://store.diydrones.com/product_p/br-0001-10.htm

And on the schematic diagram it says TINY85

but the store description says Attiny45

which

interface Arduino I2C with multiple sensors

Hi 

I am trying to building a flight controller with Arduino

for that, I need a magnetometer and barometric altimeter

http://www.sparkfun.com/products/9694.....................Altimeter

http://store.diydrones.com/HMC5843_Triple_Axis_Magnetometer_p/br-hmc

Magnetometer

Hi guysI'm looking at using this HMC5843 magnetometer for my flight controllerHas anyone been having trouble reading the heading angle using this product?http://store.diydrones.com/HMC5843_Triple_Axis_Magnetometer_p/br-hmc5843-01.htmOr are there bett

TinyGPS distance calculation

Hi there 
I have a EB-85 gps connected to an Arduino

I used TinyGPS from http://arduiniana.org/libraries/tinygps/ and

was able to obtain NMEA sentences from my GPS

and also display then on the serial monitor of the Arduino IDE

I then modified the code by

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In the manual it says:

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I am building aflight controller for my thesis project. I understand that I will need a microcontroller to controller the sensors such as IMU, alitimeter, pressure snensor, GPS etc. But my supervisor wnts me to look at CPU as well.

CPU: voltage

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How to assemble KDA 20-22L motor

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