An embedded system is a small‐scale computer system that is part of a machine or a
larger electrical/mechanical system. It is often designed to perform certain dedicated
tasks and often a real‐time system. It is called embedded because the computer system
is embedded within a hardware device. Embedded systems are important, as they are
getting increasingly used in many daily appliances, such as digital watches, cameras,
microwave ovens, washing machines, boilers, fridges, smart TVs, and cars. Embedded
systems also often need to be small in size, low in cost, and have low power consumption.
2020-01-23 03:02:17
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HttpWatch是强大的网页数据分析工具。包括网页摘要，Cookies管理，缓存管理，消息头发送/接受，字符查询，POST 数据和目录管理功能，报告输出。HttpWatch 是一款能够收集并显示网页页深层信息的软件。它不用代理服务器或一些复杂的网络监控工具，就能够在显示网页同时显示网页请求和回应的日志信息。甚至可以显示浏览器缓存和IE之间的交换信息。集成在Internet Explorer工具栏。
2020-01-11 03:01:54
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改进的基于INTERNET的ID餐饮收费系统，王秋华，章坚武，本文在原有的ID餐饮收费系统的基础上提出了ID餐饮系统服务器的概念模式，利用单片机、串行口、网络控制芯片结合Internet技术实现基于
2020-01-03 11:39:23
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Industry 4.0 and the Industrial Internet of Things (IIoT) has become one of
the most talked about industrial business concepts in recent years. However,
Industry 4.0 and the IIoT are often presented at a high level by consultants
who are presenting from a business perspective to executive clients, which
means the underlying technical complexity is irrelevant. Consultants focus
on business models and operational efficiency, which is very attractive, where
financial gains and new business models are readily understandable to their
clients. Unfortunately, these presentations often impress and invigorate executives,
who see the business benefits but fail to reveal to the client the technical
abstraction of the lower-layer complexity that underpin the Industrial Internet.
2019-12-21 22:26:26
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Blynk, known as the most user-friendly IoT platform, provides a way to build mobile applications in minutes. With the Blynk drag-n-drop mobile app builder, anyone can build amazing IoT applications with minimal resources and effort, on hardware ranging from prototyping platforms such as Arduino and Raspberry Pi 3 to industrial-grade ESP8266, Intel, Sierra Wireless, Particle, Texas Instruments, and a few others.
This book uses Raspberry Pi as the main hardware platform and C/C++ to write sketches to build projects. The first part of this book shows how to set up a development environment with various hardware combinations and required software. Then you will build your first IoT application with Blynk using various hardware combinations and connectivity types such as Ethernet and Wi-Fi. Then you'll use and configure various widgets (control, display, notification, interface, time input, and some advanced widgets) with Blynk App Builder to build applications. Towards the end, you will learn how to connect with and use built-in sensors on Android and iOS mobile devices. Finally you will learn how to build a robot that can be controlled with a Blynk app through the Blynk cloud and personal server.
By the end of this book, you will have hands-on experience building IoT applications using Blynk.
What you will learn
Build devices using Raspberry Pi and various sensors and actuators
Use Blynk cloud to connect and control devices through the Blynk app
Connect devices to Blynk cloud and server through Ethernet and Wi-Fi
Make applications using Blynk apps (App Builder) on Android and iOS platforms
Run Blynk personal server on the Windows, MAC, and Raspberry Pi platforms
Who This Book Is For
This book is targeted at any stakeholder working in the IoT sector who wants to understand how Blynk works and build exciting IoT projects. Prior understanding of Raspberry Pi, C/C++, and electronics is a must.
Table of Contents
Setting up Development Environment
Building your First Bly
2019-12-21 22:24:36
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