基于AT89C51的电子秤方案原理图,程序 -AT89C51-based schematic diagram of electronic balance to the program plan based on AT89C51 schematic diagram of electronic scales, procedures

基于protues的LED点阵显示仿真,包括keil的c语言源程序和protues的原理图，并有详细的说明解释。-LED dot matrix display based on protues of simulation, including keil c-language source code and protues the schematic, and detailed explanations.

LED双色点阵原理图，单片机控制双色LED显示屏进行显示的原理图-Schematic two-color dot matrix LED