Sensbox as data logger

Starting with version 3 of the firmware, you can run the Sensbox either as a vario (in flight mode) or as a data logger (in log mode). In log mode, the Sensbox records all sensor data at high frequency (up to 50 Hz) for up to 24 hours.

The data is stored as a CSV file, ready for processing in Excel or in a database. In addition, the file can serve as a data source for video tools like Dashware (for Windows) or RaceRender (for OS X and Windows). Here are some sample videos.

Recorded data

Value Unit Default sampling frequency Description
Time s 20Hz The official GPS time. It starts on January 5, 1980 at 24:00:00, and corresponds with the Atomic Time TAI, with a deviation of 19 s
raction
20Hz A counting variable within the second
Latitude °/1e7 5Hz Latitude times 10^7 (471234567 =47.1234567°)
Longitude °/1e7 5Hz Longitude times 10^7 (471234567 =47.1234567°)
Height_ellipsoid m 5Hz Altitude above WGS84 Ellipsoid
Height_msl m 5Hz Altitude above mean sea level
Accuracy_hor dm 5Hz Horizontal GPS accuracy indication: 50% of the fixes that are within the radius in decimeters
Accuracy_ver dm 5Hz Vertical GPS accuracy indication: 50% of the fixes that are within the radius in decimeters
Speed_gnd dm/s 5Hz Speed over ground
Heading °/10 5Hz The direction of travel relative to the ground, from the GPS system
Satellites
5Hz Number of satellites which are used for the calculation
Fix
5Hz 2D or 3D Fix
TimeOfDay sec 5Hz The number of seconds since 0:00 UTC
Nanoseconds ns 5Hz The exact time of the GPS fix, given in nanoseconds as difference to GPS time
Time_Valid
5Hz A flag whether the time is valid or not, the flag is linked to Fix
Pressure mPA 8Hz Absolute pressure in millipascal
Altitude cm 8Hz Pressure level according to the ICAO formula based on 1013.25 hPa
Vario cm/s 8Hz Vario value, the vertical velocity
Temperature °C/10 8Hz Temperature of the pressure sensor
Acc_X m/s^2 20Hz Acceleration in the device's x direction
Acc_Y m/s^2 20Hz Acceleration in the device's y direction
Acc_Z m/s^2 20Hz Acceleration in the device's z direction
Mag_X Gauss 20Hz Magnetic flux density in the device's x direction
Mag_Y Gauss 20Hz Magnetic flux density in the device's y direction
Mag_Z Gauss 20Hz Magnetic flux density in the device's z direction
Gyro_X rad/s 20Hz Angular acceleration in the device's x direction
Gyro_Y rad/s 20Hz Angular acceleration in the device's y direction
Gyro_Z rad/s 20Hz Angular acceleration in the device's z direction
Roll ° 20Hz Position of the device in the device's x direction according to the aeronautical definition
Pitch ° 20Hz Position of the device in the device's y direction according to the aeronautical definition
Yaw ° 20Hz Position of the device in the device's z direction according to the aeronautical definition
Quat0,1,2,3
20Hz The four quarternions with respect to the device's axis, for further use in mathematics programs