本论文的主设计方案是：把压力传感器采集因为压力变化产生的电压信号，经过

The main design plan of this thesis is to collect the voltage signal generated by the pressure change by the pressure sensor, amplified by the voltage amplifier circuit, and then converted into a digital signal by the analog-to-digital converter, and finally sent the digital signal to the single-chip microcomputer. After corresponding processing by the single chip microcomputer, the weight and total price of the currently weighed items are obtained and displayed on the display screen.

The main design scheme of this paper is: the pressure sensor to collect the voltage signal due to pressure changes, after the voltage amplification circuit amplification, and then through the analog-to-digital converter into a digital signal, and finally the digital signal into the single-chip machine. After the corresponding treatment of the singer, the weight and total price of the current weighing items are derived and displayed on the display.

本论文的主设计方案是：把压力传感器采集因为压力变化产生的电压信号，经过电压放大电路放大，再经过模数转换器转换为数字信号，最终把数字信号送入单片机。单片机经过相应的处理后，得出当前称量物品的重量及总价，并在显示屏上显示出来。<br>