【摘要】 文章利用AT89C51单片机、4个大数码管、时钟芯片DS1302、A/D芯片TLC1543、D/A芯片DAC0808、按键和蜂鸣器等外围器件设计与开发出一套功能完善,操作简单,并具有光控功能的数字温度时钟系统。经实物测试,该系统不仅温度时钟显示准确,而且光控功能实用性非常强,深受用户喜爱。更多还原

【Abstract】 A new type of optically controlled digital temperature clock system, with perfect functions and easy operation, used by single computer chip AT89C51, big four digital tube, clock chip DS1302, A/D chip TLC1543, D/A chip DAC0808, buttons and buzzer peripheral device, was designed and developed in this paper. By actual test, the system can accurately measure the temperature and time, and it’s optically controlled functional is very useful, so it will be popular with users.更多还原