MOD-HMC5883L is new Open Source Digital Compass breakboard. It comes with UEXT connector and cable so you can connect it to any of our development boards which have UEXT connector, but if you want you can use it also with breadboard as all HMC5883L signals are available in two rows at 0.1″ step on the two sides of the PCB.
MOD-HMC5883L is with 12 bit precise ADC and allow you to measure north with 1-2 degree error.
The board is in stock and cost EUR 9.95
Demo code for OLinuXino in C and Python and for Arduino, MAPLE, Pinguino will be available on our web, the Eagle CAD files and schematic is also there.