The ProxFusion Click Board™ is a multi-functional capacitive and Hall-effect sensor, the IQS624 from Azoteq. This Click Board™ can detect touch by using two on-board sensor pads, and it can sense a rotation angle of a magnetic field, parallel with the surface of the Click Board™. The intelligent on-board IC calculates all the parameters and streams the current angle value to the I2C bus directly, without the need for extra calculations.