The Design of Electronic Weighing Control System Based on Proteus

The control core of this design is MCU AT89C51,with the sensor MPX4115,it can complete the detection of weighting signal.Use the ADC0832 chip to achieve signal conversion, the input use a square 4*4 keyboard,the output display use the LCD LM4229.Use C Language Programing to achieve the modular design of software,use proteus simulation system to achieve the measure of weight of nine kinds of goods,The weighing range from 0.546Kg to 4.980Kg;Its resolution is 0.001Kg;This system has the function of calculating total price,storing single price,alarming when the goods overweights. Key words: AT89C51MCU;A/D exchange;Sensor