Journals Proceedings

Abstract

This paper proposes a wireless stepper motor controller designed using Very High Speed Integrated Circuit Hardware Description Language (VHDL) and is implemented on DE0 Altera Field Programmable Gate Array (FPGA). The proposed controller uses the Pulse-Width Modulation (PWM) technique to rotate the motor through the desired angle, speed and direction. Using the proposed controller it is possible to rotate the stepper motor precisely. In addition, the motor has been operated with a speed ranging from 5.625º per second to 20º per second in either clockwise or anticlockwise direction. Features such as manual rotation, to rotate the motor in directional mode, to pause the rotation, to execute the rotation with varying speed at desired region, return-to-zero, and zero position detection have been incorporated in the design. This proposed controller has been designed to operate wirelessly using Zigbee transreceiver module. More over the complete controller can be redesigned and realized in hardware rapidly. Thus, it is easily possible to customize the controller for any industrial applications. In addition, the architecture can be expanded to control more than one motor at one time by addressing technique.