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（1） 有一个主持人控制开关和8路抢答按扭，当主持人允许抢答时才能进行抢答操作，并用一个数码管显示抢答选手的号码，同时其他选手不能再抢答。
（2）电路上...
（1） 有一个主持人控制开关和8路抢答按扭，当主持人允许抢答时才能进行抢答操作，并用一个数码管显示抢答选手的号码，同时其他选手不能再抢答。
（2）电路上要加个蜂鸣器的电路，当有选手抢答时蜂鸣器响一下。
（3）要有倒计时功能，开始抢答时开始倒20秒计时，用两个数码管显示，当有人抢答时停止倒计时。
2.2拓展部分
用按键可设置倒计时的时间，范围在5秒到30秒之间。-(1) has a host switch and 8-way control button to answer in, when the moderator allowed to be carried out to answer in time to answer in operation, and use an LED display to answer in the number of players, while other players can no longer answer in his place. (2) the circuit, we should add a buzzer circuit, when there are players when the buzzer rang to answer in about. (3) to have the countdown feature to begin to answer in 20 seconds when you start down time, using two digital tube display, when someone stops to answer in the countdown. 2.2 The expansion of part of the buttons can be set with the countdown time, the range of 5 seconds to 30 seconds.
- 2022-02-25 13:31:03下载
- 积分：1
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将利用I2C总线对24C01进行数据块读写
将利用I2C总线对24C01进行数据块读写-Will use the I2C bus of the 24C01 data block read and write
- 2022-03-02 22:22:30下载
- 积分：1
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汇编控制扬声器演奏音乐
汇编控制扬声器演奏音乐-Series loudspeakers playing music control
- 2023-01-05 03:45:03下载
- 积分：1
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TMS320LF2407 achieved using space
用TMS320LF2407实现空间矢量PWM（SVPWM）.rar-TMS320LF2407 achieved using space-vector PWM (SVPWM). Rar
- 2022-05-24 17:19:51下载
- 积分：1
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定时器和计数器，proteus仿真，程序原理图全套。
定时器和计数器，proteus仿真，程序原理图全套。-Timers and counters, proteus simulation, process a full set of schematics.
- 2022-03-18 13:54:31下载
- 积分：1
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16F873数字钟程序
16F873数字钟程序 -16F873 digital clock procedures 16F873 digital clock procedures
- 2022-01-26 03:29:55下载
- 积分：1
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computer theories
微机原理――接口应用编程源码-computer theories-- Application Programming Interface FOSS
- 2022-02-07 13:53:33下载
- 积分：1
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利用dsPIC30F DSC电机正弦控制
Sinusoidal Control of PMSM Motors with dsPIC30F DSC
- 2022-12-05 03:50:03下载
- 积分：1
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C++ Realize operating system in the banker
C++实现操作系统中的银行家算法,只具有实现算法中的核心部分的代码,没有图形界面,有待修改.-C++ Realize operating system in the banker
- 2022-06-19 23:51:17下载
- 积分：1
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embeded device reverse engineering tools
Quoted from the author Igor Skochinsky
In July I had the honor to speak at the Recon conference in
Montreal, Canada. It was my first conference but I really liked the
experience. I hope I’ll be able to attend it in future.
The presentations were recorded and hopefully will appear on the Recon site soon but for now you can check out the slides . I have also uploaded some of the tools I mentioned, most notably various filesystem extractors compiled for Win32 .
- 2022-06-26 14:24:44下载
- 积分：1
