An apparatus and method are disclosed for use in a device, such as a handheld printer or scanner, having functionality that requires information of its position relative to an origin and initial orientation. The module includes two sensors to generate movement data indicative of movement direction and orientation changes of the device. The location and orientation of the device relative to the origin and initial orientation is derived based on the movement data. A handheld printer or scanner implementing the device may thus be moved in different directions across a media to print or scan images, text, or other objects.