【摘要】 介绍一种由单片机8751控制的电子秤的设计,该电子秤的最大称量为500g,最小分度为0.1g,16个数码管分别显示质量及其它参数.基于成本和精度考虑,A/D转换部分采用单片机控制的双积分A/D电路.更多还原

【Abstract】 This paper introduces a design of a digital scale controlled by micro - controller 8751. The scale has a measurement maximum of 500 grams and a graduation minimum of 0. 1 gram. It has 16 LED displays indicating various weights and other parameters respectively. In view of the manufacturing cost accuracy, a doable integral A/D circuit controlled by a micro - controller is employed.更多还原