单片机最小系统设计，主要有时钟和温度传感器以及键盘扫描芯片。-The software in WinCE is the main control module, and periphery single chip system is the assistant module. The system includes video capture, web server and single chip system, which can catch the real time temperature

89c51最小系统和8155扩展和串口 protel pcb图，对初学者很有帮助-89C51 minimum system and 8155 extension and serial Protel PCB diagram, very helpful for beginners