Design and Development of WRIST-TILT Based PC Cursor Control Using Accelerometer

Abstract

Human computer Interfacing apparatus is key part in modern electronics period. Motion recognition can be well introduced in present day computers to playgames. In this work simple inertial navigation sensor like accelerometer can be use to get Dynamic or Static acceleration profile of movement to move cursor of mouse or even rotate 3-D object. In this paper a human computerinterfaces system is presented, which will be able to act as an enhanced version of one of the most common interfacing system, which is computer mouse. In this research work, an alternative to interact with computer, for those who do not want to use conventional HCI (human computer interface) or not able to use conventional human comp uter interface and this achieved by using a sensor accelerometer mount on human wrist or anywhere in human body. Accelerometer device use to detect the position in x, y direction caused by movement of device mount on the wrist, as referred from acceleration of gravity (1g=9.8m/s2). Accelerometer is connected with PIC16F877A for analog to digital conversion and PIC16F877A are connected with LCD for displaying the co-ordinates(x, y) in which the accelerometer move andit further connected with ZigBee transmit ter which is used to transmit the wireless signal to ZigBee receiver. ZigBeereceiver receives the signal fom transmitting end and transferred to PC through MAX232 serial communication. In PC an application for cursor control in response to accelerometermovement is developed.