Design of Liquid Level Control System Based on MCU
Abstract: The AT89C52 single-chip computer is used in the system as the control core to realize the basic control functions of water level. A signal acquisition circuit, a display and alarm circuit, a power supply circuit and a water pump control circuit are included in this design. When the relay is controlled by the level of the output port of the single-chip computer, the motor is set up or stopped so as to achieve the purpose of automatic water level control. In addition, according to the set of water level control system, the system is given the alarm function. The system is operated easily and has good quality, which further improves the safety , reliability and practicability of level control and the cost of hardware is also reduced.
Key Words: AT89C52; Signal Acquisition; Water Level Control; Display and Alarm
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