基于STM32的智能电子秤设计

ABSTRACTThe purpose of this design is to design an electronic scale system based on STM32 singlechip microcomputer.With the continuous development of science and technology,thetraditional mechanical scale is gradually replaced by electronic scale.Compared with themechanical scale which is not accurate and time-consuming,the intelligent electronic scale isconvenient and fast in use,and can also ensure the accuracy of the results.The design usesSTM32 MCU as a processor to control various sensors and peripheral devices.The LCD12864shows the weight of the detected item and the pressure sensor should be used for weighing.Bydetecting the pressure of the sensor caused by the object,the weight of the object is calculatedthrough the formula.In addition,the matrix keyboard is composed of 16 keys,the number canbe input,and the operation of addition,subtraction,multiplication and division can be carriedout.The total price is calculated through the weight and the unit price,and the voice is read out.Key words electronic scale;STM32 single chip microcomputer;LCD12864 liquid crystalscreen;pressure sensor;voice broadcast2