2012年江苏省蓝桥杯电子设计大赛单片机组题目：自动打铃器，具体功能忘记，可以在官网找题目或可以放在官方的开发板上尝试。-2012 Jiangsu Lanqiao Cup electronic design contest single-chip unit Title: automatic bell, the specific function of forget, you can find the title in the official website or can be on the official development board to try.