ne555的占空比可调电路，熟悉ne55的一个绝好途径

通用控件字体大小属性的类型一般为int，组态王只能支持long，本控件是一个文本框，字体大小属性的类型为long

基于51单片机的作息时间控制，含声光提醒，时钟闹钟显示且均可调， keil工程、proteus工程都已打包上传，内含使用说明，欢迎大家互相借鉴学习。

STC89C51控制AD9833产生正弦波，频率可调

unity particleSystem冰雹粒子-可实时调节大小与碰撞-资源包-源码，在u3d 2017 和 2019下测试通过，导入的资源集中在一个文件夹下，干净整洁。可在运行时实时控制冰雹类型、大小、碰撞（主要是与地面）等。内附运行截图。

DevCon.exe 安装驱动的工具，微软官方源码。 修正编译通过，VS2013可调试 Device Console Help: devcon.exe [-r] [-m:\\] [...] -r Reboots the system only when a restart or reboot is required. Specifies a remote computer. Specifies a Devcon command (see command list below). ... One or more arguments that modify a command. For help with a specific command, type: devcon.exe help classfilter Add, delete, and reorder class filters. classes List all device setup classes. disable Disable devices. driverfiles List installed driver files for devices. drivernodes List driver nodes of devices. enable Enable devices. find Find devices. findall Find devices, including those that are not currently attached. help Display Devcon help. hwids List hardware IDs of devices. install Install a device manually. listclass List all devices in a setup class. reboot Reboot the local computer. remove Remove devices. rescan Scan for new hardware. resources List hardware resources for devices. restart Restart devices. sethwid Modify Hardware ID's of listed root-enumerated devices. stack List expected driver stack for devices. status List running status of devices. update Update a device manually. updateni Manually update a device (non interactive). dp_add Adds (installs) a third-party (OEM) driver package. dp_delete Deletes a third-party (OEM) driver package. dp_enum Lists the third-party (OEM) driver packages installed on this machine.

本篇论文是我做的课程设计，成绩是优秀。通过PLC控制的学校电铃系统，能实现定时打铃，显示时间，调节时间等功能。希望能给需要的朋友提供借鉴。

地下车库，过道，LED人感灯，两种亮度

本例子是用51单片机来实现数字时钟 用按键来可调时间的程序源代码

高精度连续可调高压开关电源的设计