Hi all, under you can find a link with the class i use with Qt (i use a yocto image, thanks to @graugans works !) QNeoSensors This works is based on Magnum library ! This code is not perfect and sure you can use it, modify it and of course optimize it That work : acc, gyro and mag but if i want to read the temperature sensor (brick) i have a bug (and no time to correct it for the moment !) I have add a function to filter data void QNeoSenors::filterData() use ti var to increase or not the low pass filter ! let me know if it can help !