这是一块用protues制作的学习板。主要是以AT89C52单片机为核心的学习板，包含LCD,LED,矩阵键盘等模块。对初学单片机者十分有用。-This is a study made use of protues board. Mainly based on AT89C52 microcontroller as the core of the study panels, including LCD, LED, matrix keyboard module. SCM are very usefu

A/D转换器控制电动机的转速和方向，8字数码管显示当前的转速值，也即A/D电压值，LED点阵显示速度等级和旋转方向。-A/D converter to control the motor speed and direction, 8 character LED display the current speed value, the A/D voltage, LED dot matrix display and rotation speed rating.

嵌入式Linux开发板PXA270的LED点阵驱动程序与测试程序-PXA270 embedded Linux development board LED dot matrix driver and testing procedures

STM32F103实现LED点阵，变化形式多样，易于上手-STM32F103 achieve LED dot matrix, change forms, easy to use