Controlling of mobile car robots using IR sensors and a tripple axis magnetometer

Abstract

This paper presents the particulars and details of controlling a mobile car robot in a precise angle set clockwise with respect to the magnetic north of earth. With the employment of a magnetometer and infrared (IR) technology the task of making a mobile vehicle move in a particular angle, with respect to the magnetic north of earth, can be achieved. Reading one of the angular axis movement data, to be particular the YAW axis data, from a triple axis magnetometer, mounted on a portable controller, compass readings can be read on a liquid crystal display (LCD) screen and hence the controller can be pointed towards a desired direction and angle and accordingly the mobile vehicle can be moved in the set direction. For the purpose of making the mobile vehicle move in the set direction the compass angle of the direction is sent to the mobile vehicle through an infrared light emitting diode (LED) using an infrared protocol, to be more precise the infrared NEC protocol was used. The vehicle then receives the information sent by the controller using an IR receiver then moves in the compass angle as set using the portable controller.