Systems and methods for calibrating a mobile device for use in green reading

A system, comprising:

• a mobile device, wherein the mobile device is placed on a substantially flat surface and wherein the mobile device is rotated in a preferred direction after a period of time;
• an accelerometer;
• a memory;
• and
• one or more processors operatively coupled to the mobile device, the accelerometer and the memory, the processors being configured to execute operations that, when executed, cause the processors to perform operations, the operations, comprising:
• performing auto-leveling of the mobile device;
• collecting a first set of accelerometer data of the mobile device;
• collecting a second set of accelerometer data of the mobile device;
• converting the first and second sets of accelerometer data to pitch calibrations and roll calibrations;
• computing an average for the pitch and roll calibrations;
• and
• saving the result on the mobile device.

A method of calibrating a mobile device for reading a putting green, comprising:

• performing auto-leveling of the mobile device;
• placing the mobile device on a substantially flat surface;
• collecting a first set of accelerometer data of the mobile device;
• rotating the mobile device substantially 90 degrees in a preferred direction;
• collecting a second set of accelerometer data of the mobile device;
• rotating the mobile device substantially 90 degrees in the preferred direction;
• collecting a third set of accelerometer data of the mobile device;
• rotating the mobile device substantially 90 degrees in the preferred direction;
• collecting a fourth set of accelerometer data of the mobile device;
• converting the first, second, third and fourth sets of accelerometer data to pitch calibrations and roll calibrations;
• computing an average for the pitch and roll calibrations;
• and
• saving the result on the mobile device.