I V
ABSTRACT
The Radio Frequency (RF) Lawn Mover (Prototype) is machine to cutting grass and this
lawn mover are control use remote control. The movement of machine like ri ght, left,
forward and backward will control w ith RF remote control. RF remote controls are
chose in thi s project because RF is quite effective in long distance and the components
are cheap and easy to get in market. RF remote control use to control the two operations
of motor, H-Bridge motor circuit and stepper motor in this project. H-Bridge moto r
circuit is for controlling the movement of machine and the stepper motor are use to
control the leve l of cutting fan. All thi s two motor are totally different in operation and
circuit. Peripheral Interface Controller (PIC) is use for controlling stepper motor.
