Abstract: This paper is primarily designed for the core SCM AT89C51 through programmable microcontroller design features towers intelligent control system, the system has revealed that the water level alarm and time functions. System design by integrating hardware and software components, the software makes the handling circuit system more streamlined, cost-effective this system, maintainability strong, and simple structure. Implementation of the system when the water level dropped to a certain location when the alarm, motor starting at the same time, the system automatically is pumping water full stop pumping function. The alarm signal is no longer a single before beeps instead of the beautiful music. To allow a more perfect system, based on this design of the LCD display calendar bell of the LCD can know through this time, but also the function of timing.
Keywords: intelligence; AT89C51 microcontroller; alarm; LCD; calendar bell
