单片机原理及接口技术项目化教程（第2版）：项目4LED广告字显示屏的设计PPT教学课件.pptx

项目四 LED 广告字显示屏的设计点阵内部结构及显示原理8行8由 64 个 LED 组成LED8×8LED 点阵LED1.LED 点阵显示器点阵R0R1R2R3R4R5R6R7C0C1C2C3C4C5C6C7行线列线共阳点阵2. 点阵内部结构R1R0R3R2R5R4R7R6C0 C1 C2 C3 C4 C5 C6 C7共阴点阵2. 点阵内部结构R1R0R3R2R5R4R7R6C0 C1 C2 C3 C4 C5 C6 C7R1R0R3R2R5R4R7R6C0 C1 C2 C3 C4 C5 C6 C7共阴点阵共阳点阵共阳顺时针旋转 90 度即为共阴点阵2. 点阵内部结构二者本质上是一样的R1R0R3R2R5R4R7R6C0 C1 C2 C3 C4 C5 C6 C7共阴点阵动态显示R7R6R5R4R3R2R1R0C0C1C2C3C4C5C6C73. 点阵显示原理01111111000000001011111100001000000010001101111111101111111101111111101111111101111111100000100001001001010010010111111100000...