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many procedures, sending messages Serial procedures.
好多51的程序，还有串口发送短信的程序。-many procedures, sending messages Serial procedures.
- 2022-03-03 03:29:39下载
- 积分：1
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在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张，
于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却...
在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张，
于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却
发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高，
但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支!
那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?
- 2022-08-10 23:32:47下载
- 积分：1
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USB开发信息、外部设备
usb开发资料,外围设备实现-usb development information, the external devices
- 2022-06-12 16:38:26下载
- 积分：1
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I2c如 IIc 24LC64等器件的51单片机驱动程序,已经通过实际验证,很好用的...
I2c如 IIc 24LC64等器件的51单片机驱动程序,已经通过实际验证,很好用的-I2c such as IIc 24LC64 51 microcontroller device driver, has been through actual test Oh good use
- 2022-11-10 21:00:03下载
- 积分：1
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44780lcd driving source, Keil C51 source, a reference value.
44780lcd驱动源程序,keil C51源码，有参考价值。-44780lcd driving source, Keil C51 source, a reference value.
- 2022-01-25 19:15:10下载
- 积分：1
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飞思卡尔电子钟课程设计的器官，包括酸…
飞思卡尔的电子钟和电子琴的课程设计,包括源代码-Freescale electronic bell and the organ of the curriculum design, including source code
- 2023-04-07 17:50:04下载
- 积分：1
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单片机课程设计PPT,汇编语言,电子书籍
单片机课程设计PPT,汇编语言,电子书籍-SCM curriculum design PPT.rar
- 2022-07-19 20:11:37下载
- 积分：1
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数字电位器x9318中文使用说明以及控制程序.asm
数字电位器x9318中文使用说明以及控制程序.asm-Digital Potentiometers x9318 Chinese use and control procedures. Asm2
- 2023-08-21 00:30:03下载
- 积分：1
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PDA卡CF文件系统建立的程序
PDA上的CF CARD 文件系统的建立程式-PDA CARD CF File System to establish programs
- 2022-04-11 21:51:46下载
- 积分：1
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该模拟器是在Keil7.0中使用。只要ex02dll.dll复制到X：Keil…
该模拟器是在Keil7.0中使用。 只要把Ex02Dll.dll复制到 X:KeilC51BIN目录下。 打开测试程序，编译运行即可看到如图led.jpg中所显示的效果。-The simulator is used in Keil7.0. As long as Ex02Dll.dll copied to the X : Keil C51 BIN directory. Open test procedure, compile operation can be seen in figure led.jpg reflected by the results.
- 2022-05-30 20:34:13下载
- 积分：1
