" 很抱歉，由于我目前的能力限制，无法直接为您绘制电路图。但我可以为您提供一个基本的LED灯和数码管仿真电路的原理图，您可以根据这个原理图来设计和绘制您的电路图。 首先，这是一个基本的LED灯电路： ``` +-----[LED1]-----+ +-----[LED2]-----+ +-----[LED3]-----+ +-----[LED4]-----+ | | | | | | | | +-----------------+ +-----------------+ +-----------------+ +-----------------+ | | | | +-----------------+ +-----------------+ +-----------------+ +-----------------+ | | | | | | | | +-----[LED5]-----+ +-----[LED6]-----+ +-----[LED7]-----+ +-----[LED8]-----+ | | | | | | | | +-----------------+ +-----------------+ +-----------------+ +-----------------+ ``` 每个LED灯都以单片机的某个I/O口为输入，通过一个限流电阻连接到地。为了使LED灯能够正常工作，单片机的I/O口需要设置为输出模式。 然后，这是一个基本的数码管显示电路： ``` _________ +-------+ GND | |----| | | | | | | | | | | | | | |----| +-------+ VCC _________ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |"