Improve compass calibration dialog: The previous calibration dialog showed some "magic" numbers and a 60 second count down. The new version is trying to guide the user through the calibration process: first rotate pitch, then roll and at last yaw angle. A step to the next angle is taken when enough data per angle is collected (change from red to green). To enable the yaw visualization a simple calibration is done while rotating the axis. The function behind the calibration was not modified => the suggested process can be ignored and the same handling as the with old dialog may be applied. With the new process the dialog may be left early. Anyhow it will still be left after 60 seconds and the fine calibration is performed in the same way as before.

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef COMPASS_H
#define COMPASS_H

#include <stdint.h>

void compass_init(uint8_t fast, uint8_t gain);
void accelerator_init(void);
void compass_read(void);
void acceleration_read(void);
int compass_calib(void);
void compass_calc(void);
//void compass_calc_mini_during_calibration(void);
 
float check_compass_calib(void);

void compass_sleep(void);
void accelerator_sleep(void);

#endif /* COMPASS_H */