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74LS290PC.pdf

英文描述： Replacement for Texas Instruments part number SN74LS290N. Buy from authorized manufacturer Rochester Electronics.

📅 2024-10-19 01:30:02 ⬇️ 4 👁️ 4,770

利用HFA1112和HFA1114放大器设计的视频电缆驱动器能够节省电路板空间和增加带宽

Designing video cable drivers seems to be a fairly simple task. Just buy an amplifier with enough

📅 2023-11-10 21:30:01 ⬇️ 2 👁️ 9,662

基于单片机设计的Smart Buy智能购物车

随着社会的发展,超市购物已经发展成为人们生活中不可替代的一部分,但在传统超市购物时消费者会把大量时间用于寻找商品、排队结账等方面,由此导致传统超市购物效率较低等问题。针对上述问题设计一款智能购物车,该购物车利用各种传感器、RFID、WLAN定位等技术对传统超市进行升级换代,实现商品搜索、商品导航、自主结账、自助快速付款等功能。

📅 2023-10-13 13:20:01 ⬇️ 5 👁️ 5,396

Deploying+Raspberry+Pi+in+the+Classroom

The Raspberry Pi has become a computing phenomenon. This single-board miniature computer, first released in February 2012 by the Raspberry Pi Foundation, has grown into a series of nearly

📅 2020-06-06 10:51:07 ⬇️ 1 👁️ 129

It is commonly accepted today that optical fiber communications have revolutionized telecommunications. Indeed, dramatic changes have been induced in the way we interact with our relatives

📅 2020-05-27 00:22:06 👁️ 64

When we buy something, we will get a paper with a number speller.

📅 2017-04-25 00:55:02 ⬇️ 45 👁️ 1,046

mastering dojo The book really rolls out the red carpet for Dojo to emerge with guns blazing! Th

mastering dojo The book really rolls out the red carpet for Dojo to emerge with guns blazing! The authors show you how easy it is to use impressive widgets without installing a thing. I was amaze

📅 2016-09-04 20:02:01 ⬇️ 166 👁️ 1,054

Easy_Buy是一个在线销售系统

Easy_Buy是一个在线销售系统，是一个B-C模式的电子商务系统，由前台的B/S模式购物系统和后台的C/S模式的管理系统两部分组成。该电子商务系统可以实现会员注册、浏览商品、查看商品详细信息、选购商品、取消订单和查看订单等功能。-

📅 2015-11-01 10:46:02 ⬇️ 48 👁️ 1,071

Easy_Buy是一个在线销售系统

Easy_Buy是一个在线销售系统，是一个B-C模式的电子商务系统，由前台的B/S模式购物系统和后台的C/S模式的管理系统两部分组成。该电子商务系统可以实现会员注册、浏览商品、查看商品详细信息、选购商品、取消订单和查看订单等功能。

📅 2015-04-28 20:48:01 ⬇️ 178 👁️ 1,126

stm32 usb example

it is an example for stm32 usb. i had tried it.  it deid not work on my board. buy it might be right for you.

📅 2015-03-26 09:57:56 ⬇️ 2 👁️ 39

buy_car,网页购物车程序

buy_car,网页购物车程序，简单易用，有源代码及编译文件。

📅 2014-01-20 06:32:02 ⬇️ 43 👁️ 1,034

For solving the following problem: "There is No Free Lunch" Time Limit: 1 Second Memory Limit: 3

For solving the following problem: "There is No Free Lunch" Time Limit: 1 Second Memory Limit: 32768 KB One day, CYJJ found an interesting piece of commercial from newspaper: the Cyber-restaura

📅 2014-01-12 14:01:01 ⬇️ 59 👁️ 1,204