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详细说明： 1. 闪烁灯┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅28 2. 模拟开关灯┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅31 3. 多路开关状态指示┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅33 4. 广告灯的左移右移┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅37 5. 广告灯（利用取表方式）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅40 6. 报警产生器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅43 7. I/O并行口直接驱动LED显示┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅46 8. 按键识别方法之一┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅49 9. 一键多功能按键识别技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅53 10. 00－99计数器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅57 11. 00－59秒计时器（利用软件延时）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅60 12. 可预置可逆4位计数器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅63 13. 动态数码显示技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅67 14. 4×4矩阵式键盘识别技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅ ┅┅┅┅┅┅┅70 15. 定时计数器T0作定时应用技术（一）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅79 16. 定时计数器T0作定时应用技术（二）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅84 17. 99秒马表设计┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅89 18. “嘀、嘀、……”报警声┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅95 19. “叮咚”门铃┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅99 20. 数字钟（★）┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅105 21. 拉幕式数码显示技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅114 22. 电子琴┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅121 23. 模拟计算器数字输入及显示┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅134 24. 8×8LED点阵显示技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅141 25. 点阵LED“0－9”数字显示技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅146 26. 点阵式LED简单图形显示技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅153 27. ADC0809 A/D转换器基本应用技术┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅157 28. 数字电压表┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅163 29. 两点间温度控制┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅167 30. 四位数数字温度计┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅172 31. 6位数显频率计数器┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅177 32. 电子密码锁设计┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅180 33. 4×4键盘及8位数码管显示构成的电子密码锁┅┅┅┅┅┅┅┅┅┅┅186 34. 带有存储器功能的数字温度计－DS1624技术应用┅┅┅┅┅┅┅┅┅┅199 35. DS18B20数字温度计使用┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅┅211 ...展开收缩
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