## GPS speed, GPS heading, Compass heading, GPS altitude and Barometer altitude...
...all taken from internal sources.
#### To speed-up GPS reception it is strongly recommended to upload AGPS data with ["Assisted GPS Update"](https://banglejs.com/apps/?id=assistedgps)
#### If "CALIB!" is shown on the display or the compass heading differs too much from GPS heading, compass calibration should be done with the ["Navigation Compass" App](https://banglejs.com/apps/?id=magnav)
**Credits:**
Bike Speedometer App by github.com/HilmarSt
Big parts of the software are based on github.com/espruino/BangleApps/tree/master/apps/speedalt
Compass and Compass Calibration based on github.com/espruino/BangleApps/tree/master/apps/magnav