汽车仪表类方案设计开发，STM32 控制 步进电机 LCD LED PWM采集，PWM输出，AD采集等基本功能分享，互相讨论技术，共同进步。-Automotive instrumentation program design and development, STM32 control stepper motor LED PWM LCD acquisition, PWM output, AD acquisition and other basic functions to share, disc