Turn counter and sensing of a rotational angle

A rotation angle sensing device comprising:

• a magnetic field source that is mechanically couplable to a rotatable shaft;
• at least one magnetic angle sensing element that is configured to detect a magnetic field of the magnetic field source,
• wherein the at least one magnetic angle sensing element is arranged around a rotation axis on at least one plane that is perpendicular to the rotation axis;
• an off-axis counter configured to count magnetic poles of the magnetic field source that turns around the rotation axis modulo an integer number,
• wherein the integer number equals a multiple of a number of pole pairs of the magnetic field source,
• wherein the number of pole pairs is a first number, and
• wherein the off-axis counter comprises at least one circuitry configured to:
• convert a detected magnetic pattern to a second number, and
• map the second number to an interval that corresponds to counting modulo the integer number.