Abstract This curriculum project uses MSP430F5529, in the series of MSP430
ultra low power single chip microcomputer, as its main controller. In
addition, the realization of the controller’s function can not leave motor,
battery, sensing control template and so on, for example, free movement of
the two drive vehicle, and automatic operation along runway by testing black
and white lines, avoiding obstacles, wireless operation and other functions.
The quick and easy information exchanging among each functional template has
to thank to the abundance of I/O of F5529. On mechanical structure, two front
wheels of the mini car are replaced by a universal wheel, so as to improve
its sensitivity by large margin. PWM is used to control motor and single chip
microcomputer to make PWM wave, in order to control its speed. The car can
stop and turn left to avoid obstacles because L298N driving chip drives
circuit, three infrared ray on pipes is used to test black and white lines,
and an ultrasonic template is chosen to realize ranging barrier function.
With wireless operating template, movement of the mini car can reach
real-time control. Besides finishing basic requirement of this curriculum
project, some broadening functions can also be achieved based on reliable
hardware design and better software algorithm.
Key words: MSP430F5529 tracking wireless control ultrasonic wave ranging counterguard
