Abstract
Electronic Scale is a practical work and in life, frequently used electronic measurement equipment. This paper presents a digital electronic scale and structure of the hardware circuit in principle. Designed to have a basic electronic weighing scales, keyboard input, the calculation of prices, showed that overweight alarm function. Electronic Scale measurement of the range of 0-20 Kg, measurement accuracy of 10 g, a high-precision, low-cost, portable features. First use of sensors to convert the weight of voltage signal, and then voltage signal amplification input A / D converter, followed by A / D converter tool analog signals into digital signals, the digital signal will be sent to the microcontroller, through the process of Signal processing, and weighing function, and then the weight and keyboard input price multiply calculated lump sum, and the weight and price with LCD display.
Key words: electronic scales； weighing sensors; SCM
