This library is a wrapper around the Arduino analogRead() function.
- Auto calibration
- Some joysticks do not provide a middle (or neutral) reading at exactly half of the maximum input voltage. For an AVR micro-controller this would be 511, but the range I have seen goes from 495 to 520. Therefore the analogReader can be configured to take the first reading as the middle value and to return 511. Values below and above are distributed evenly between 0 and 511, or 511 and 1023, accordingly.
- Value mapping
- AVR controllers return analog values in the range between 0 and 1023, having a resolution of 10 bits. It may be desirable to map these values e.g. to 0 to 255 for returning byte values, or to -511 to +511. Therefore a call to the Arduino built-in map() function is included.
TODO