There are two examples:
- The gyrol_graph app grabs gyroscope data from on-board(STM32F3Discovery) MEMS L3GD20 3-axis digital output sensor and plot graph of it vs. time in real time.
- The compass app grabs digital magnetic data from on-board(STM32F3Discovery) MEMS LSM303DLHC E-compass sensor and shows pointer/needle showing the direction of magnetic north in real time.