Has anyone tried porting the razor AHRS library from https://github.com/ptrbrtz/razor-9dof-ahrs?
This library is for arduino. I ported it to C++ for the spark but I’m having trouble to get correct values out of my sensor board (using the SparkFun 9 Degrees of Freedom - Sensor Stick)
I think it has to do with the I2C communication but can’t see what is going wrong. Are there fundamental differences between arduino and spark core besides the pull-up resistors?
I’m flashing the spark via usb using the latest firmware from github. I also tried via cloud but no luck either.