Looking for products that tell people the brand name? Then you'll find an affordable product that will spread your brand name very well. The best custom mini LED keychains can effectively broadcast your business. They are affordable but low-cost ways…

The    LED Keychain    makes it easy for people to carry their keys with them and carry them with them. It has become an indispensable object in our daily lives. Whether in the home, office, campsite or more, these LED keychains have become one of th…

Every business owner understands the importance of reducing marketing budgets and investing in sales operations. This recognition often prompted them to seek cost-effective promotional items with high practical value. Magnetic stickers, keychains, cu…

The LED keychain makes it easy for people to carry their keys with them and carry them with them. It has become an indispensable object in our daily lives. Whether in the home, office, campsite or more, these LED keychains have become one of the most…

Imagine you want to insert the car key into the keyhole in the dark. What would you do? You will definitely try to focus on the light source. LED keychains are currently a popular choice when lost in the dark. When you are in the dark, a convenient  …

LED keychains are essential camping and travel accessories. Very useful as a light source. There are many benefits to buying a good LED keychain: Portable and compact: It is very compact (as small as a keychain) and therefore very compact. You carry…

Looking for something memorable to remind people of your business or nonprofit? Consider custom LED keychains. This will be a great way to promote your ads and keep your brand clearly visible in your audience. Choose from multiple colors and styles a…

LED keychain are an excellent tool to drive specific market segments. They can focus on a small group of customers who are most likely to benefit from and enjoy their products. Targeted marketing can save time and effort while ensuring proper market…

第一种解决方法: I think I figured out why the simple delete is not working. Because the dev certificate is still stored in the provision profile, when I close/re-open the Xcode after deleting the certificate in Keychain, I saw the old certificate come back.…

近年来,Micro LED因其功耗低.响应快.寿命长.光效率高等特点,被视为继LCD.OLED之后的新一代显示面板技术.Micro LED的英文全名是Micro Light Emitting Diode,中文称作微发光二极体,也可以写作μLED,是将传统LED薄膜化.微小化和矩阵化,使像素点距离从毫米级降低至微米级别,并在一个芯片上高度集成的固体自发光显示技术[1].其与常规LED最大的不同在于尺寸,大小相当于人头发丝的1/10,体积达到了主流LED大小的1%,然而像素尺寸当前还未形成统一的定义…

If you’re confused about the difference between a front-end developer and a web designer, you’re not alone. Trying to maneuver through the job market is made more difficult by the different job titles used to label what are virtually the same positio…

请管理员移至新闻版块,谢谢! 来源:http://www.sec.gov/ 财务报表下载↓ 此文仅作参考分析. 10-K 1 goog2013123110-k.htm FORM 10-K   UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549         FORM 10-K   (Mark One)       ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(…

With an executive staffing venture about to open, a business loan from the in-laws gnawing at her conscience and a new baby to care for, Michelle Fish was already feeling the pressure. But what really pushed her over the edge was an unexpected commun…

Using the Material Theme This lesson teaches you to Customize the Color Palette Customize the Status Bar Theme Individual Views You should also read Material design specification Material design on Android The new material theme provides: System widg…

官网地址 http://www.ehcache.org/ 从哪开始 第一步优先下载 http://www.ehcache.org/downloads/ 下载 Ehcache 2.10.0 .tar.gz 解压之后得到 ehcache.xml <?xml version="1.0" encoding="UTF-8"?> <!-- CacheManager Configuration ========================== An ehca…

由刚开始的接触到现在做出来一个基本完整的SSRS的项目,学到了比较多的知识,和大家共享. 上一篇学习总结可能有些问题,一起修正和总结. =================================================================== 首先,使用BIDS开发SSRS过程中,感觉还是不太灵活,比如参数的控件<暂且说为“控件”>只能是一行排两个,而且根据参数多值还是单值的类型,控件长度不可调整,导致看起来比较不舒服. 群好友建议: 可以结合winform与C#系…

之前买了个newifi mini的路由器,CPU是mt7620a的,有7个led指示灯.现在想要把控制led灯的gpio引出来,方便其他驱动或应用的开发. 一.硬件部分 1.联想路由 现在想要把USB.5G.LAN.INTERNET这四个指示灯引出,原本是打算把WAN指示灯也引出来的,但是WAN指示灯没有被当作普通的gpio使用,所以没办法引出(引出了也没法当作gpio使用). 2.将路由器拆开,去掉这四个led灯,以及对应的电容(如果不去掉,会影响i2c通讯),并将四个led灯对应的测试点连接…

原文网址:http://blog.csdn.net/mad1989/article/details/8699147 前言: 刚刚把mini换成了macbookair,之前一直在mini上进行开发,到换air之前,第一个项目刚刚上线,第一次申请测试,发布证书等等都是在mini上完成的,由于粗心未能料到,换成air后,就把mini的全部清空,然后二手卖了,之前的开发证书也被我删除了,其实应该备份和导出的.... 导致现在在新air上,登陆网站: 想直接下载之前建立好的证书,可是下载双击后,在钥匙串里…

Mini ORM--PetaPoco笔记 记录一下petapoco官网博客的一些要点.这些博客记录了PetaPoco是如何一步步改进的. 目录: Announcing PetaPoco PetaPoco-Improvements PetaPoco-Improvements II PetaPoco-T4 Template PetaPoco-NuGet Package PetaPoco-Paged Queries PetaPoco-Named Columns,Result Columns and i…

点个 LED 闪亮好像太单调,这次来个光控 LED 灯.这个其实不需要 Arduino 也能做,这次只是用来演示一下 PWM 在 Arduino 里面的做法.PWM 原理后面会解释.这次用充电宝提供 5V ,对四个 LED 供电,NPN 三极管作为开关用,Arduino 接基极发 PWM 控制亮度,另外 PWM 是从光敏电阻取值而发出.就是说,通过 Arduino,环境变暗,LED 就越亮的一个控制. 这一篇主要是针对新学的朋友们,讲解或者回顾一下基本知识点. 需要的材料 整个光控灯我们需要以下…

本篇内容为,使用 Arduino 点亮 LED 的做法示范.很简单的一个入门示范.我们让 LED 闪. 本篇使用到的工具和材料 Arduino Mini Pro 1 PCS Mini USB 数据线 FT232用 1 PCS FT232RL FTDI 出品 USB 转串口 1 PCS 跳线套装 1 PCS 面包板 1 PCS 杜邦线 母对母 5 PCS 电阻 直插 340Ω 1 PCS LED 直插 颜色随意 1 PCS 如果各位使用的 Arduino 板子自带有 USB 转串口功能的,比如 U…

原文地址 - https://www.arduino.cc/en/Tutorial/Blink 闪烁 这个例子展示了你能拿 Arduino / Genuino 板子来干的最简单的事:使开发板上的 LED 灯闪烁. 硬件需求 Arduino 开发板 LED (非必要) 220欧电阻(非必要) 电路 这例程使用了大部分 Arduino / Genuino 开发板上都有的 LED 指示灯.这 LED 灯是连接到数字引脚的,而它在不同型号的开发板上的引脚号都不一样.为了方便大家,我们已经每种开发板的描述…

详细资料,请参看苹果官方文档Keychain Services Reference . ios中的keychain,用于保存用户的机密信息,对keychain的操作有4种,就是 增,删,改,查: SecItemCopyMatching 查 Returns one or more keychain items that match a search query, or copies attributes of specific keychain items. SecItemAdd 增 Adds o…

* 内容简述: 本例程操作系统采用ucos2.86a版本, 建立了5个任务            任务名                                             优先级            APP_TASK_START_PRIO                               2            主任务                          Task_Com1_PRIO                                …

上一篇:[stm32][ucos] 1.基于ucos操作系统的LED闪烁.串口通信简单例程 * 内容简述: 本例程操作系统采用ucos2.86a版本, 建立了7个任务            任务名                                             优先级            APP_TASK_START_PRIO                               2            主任务            APP_TASK_USER_…

本文是iOS7系列文章第一篇文章,主要介绍使用KeyChain保存和获取APP数据,解决iOS7上获取不变UDID的问题.并给出一个获取UDID的工具类,使用方便,只需要替换两个地方即可. 一.iOS不用版本获取UDID的方法比较 1)iOS 5.0 iOS 2.0版本以后UIDevice提供一个获取设备唯一标识符的方法uniqueIdentifier,通过该方法我们可以获取设备的序列号,这个也是目前为止唯一可以确认唯一的标示符.好景不长,因为该唯一标识符与手机一一对应,苹果觉得可能会泄露用户隐…

简介: 支持所有带SWIM接口的STM8系列单片机 支持所有带SWD接口的STM32系列单片机 完全兼容Keil,STVP,STVD,IAR,COSMIC,STM32 ST-LINK Utility! 支持固件自动升级,以确保 ST 公司产品后续支持. 编程功能:可烧写FLASH ROM.EEPROM.AFR等. 仿真功能:支持全速运行.单步调试.断点调试等各种调试方法,可查看IO状态,变量数据等等. 仿真性能:采用USB2.0接口进行仿真调试,单步调试,断点调试,反应速度快! 编程性能:采用U…

刚毕业时就知道arduino,但当时崇拜技术极致,喜欢把单片机的性能用到尽,觉得操作寄存器运行效率高,对arduino 这种高效模式贬为投机取巧,不过其中也一直对arduino 有关注. 随着芯片技术的飞速发展,工作多年后也对资源有了新的认识,一个单片机资源相对人工资源来说,不一值一提啊!应用中,一个项目的快速完成及后期的可维护性更重要. 最近跟着好友一起玩飞控,发现很多模友喜欢用arduino 做些扩展功能,遂又打起arduino 的主意.到淘宝一看便宜的arduino pro mini有几块…

原文出处 Trailmax Tech Max Vasilyev: ASP.Net MVC development in Aberdeen, Scotland 中英对照版 我的读者联系到我,并向我提出了一系列关于 AspNet Identity的问题.一开始我觉得这些问题都会比较简单,我能够轻松的回答他,但结果表明,这里面的每一个问题都值得写一篇单独的文章.所以我会写一个Mini系列关于Identity框架的"Q-A(问与答)"博客. 第一个问题是关于Cookie安全Token以及它是如…

原文出处 Trailmax Tech Max Vasilyev: ASP.Net MVC development in Aberdeen, Scotland I've been reached out by one of my readers with a list of questions about AspNet Identity. First I thought the questions will be easy and I'll wing them, but turned out th…