線上 電子 電路 模擬 線上玩 online arduino Electronics Circuit Simulation environment

arduino simulator online
compiler simulator online
circuit simulator online

http://duino4projects.com/arduino-simulator/
http://www.smashingrobotics.com/arduino-simulators-lineup-start-developing-without-real-board/

https://123d.circuits.io/home/create

Electronics Lab

Simulate and program Arduino and breadboard components.

Test your Arduino code in our real-time simulation environment and see your designs come to life in the browser.

線上玩 Arduino 可以即時線上測試 模擬   

https://www.circuitlab.com
CircuitLab 提供在綫的瀏覽器內工具用於原理圖捕獲和電路模擬。這些工具使學生、愛好者和專業工程師在創建一個原型之前，可以設計並分析類比和數位系統。綫上原理圖捕獲使愛好者輕而易舉地分享並探討他們的設計，同時，綫上電路模擬還可快速重複設計並促進對電子學的了解。


http://www.partsim.com

Circuit Simulation
Made Easy

PartSim is a free and easy to use circuit simulator that runs in your web browser.

http://www.docircuits.com

DoCircuits is an online virtual lab for electronics. On DoCircuits you can prototype and test your designs without installing any tools on your computer. With DoCircuits you can:

• have fun building and burning circuits
• test and measure your designs with real lab equipments
• share your designs with the community

 

http://www.falstad.com/circuit/
This is an electronic circuit simulator.  When the applet starts up you will see an animated schematic of a simple LRC circuit. The green color indicates positive voltage.  The gray color indicates ground.  A red color indicates negative voltage.  The moving yellow dots indicate current.
To turn a switch on or off, just click on it.  If you move the mouse over any component of the circuit, you will see a short description of that component and its current state in the lower right corner of the window.  To modify a component, move the mouse over it, click the right mouse button (or control-click if you have a Mac) and select “Edit”.
The "Circuits" menu contains a lot of sample circuits for you to try.

https://easyeda.com

An Easier EDA Experience

Try EasyEDA Online

Do schematic capture, Spice simulation, PCB Layout online for free, then order high quality PCBs.
EasyEDA: the one stop design shop for your electronics projects.

http://dcaclab.comElectronics Circuits Simulator. Realistic Interface.

Teaching electronics, implement experiments never got easier!

If you are a student or hobbyist and interested in experimenting with electric circuits or an instructor who is willing to test electric circuits to teach in class room, DC/AC Virtual Lab is an online simulator who is capable of building DC/AC circuits, you can build circuits with batteries, resistors, wires and other components, then compute Volt, Ampere, Ohm between at any component or connections nodes at board.

http://www.indiabix.com/electronics-circuits/
http://www.indiabix.com/online-test/categories/

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http://www.digikey.com/schemeit/

SchemeIt | Free Online Schematic Drawing Tool | DigiKey ... 

SchemeIt is a free online schematic drawing tool that will allow you to produce professional looking schematic diagrams, add corresponding part numbers, and  ...

http://www.tina.com/English/tinacloud/
https://www.tinacloud.com/tinaui/tina.php

TINACloud is a powerful circuit simulation package for analyzing, designing, and real time testing of analog, digital,Verilog, VHDL, MCU, SMPS, RF, ...

https://en.wikipedia.org/wiki/List_of_free_electronics_circuit_simulators

List of free electronics circuit simulators

From Wikipedia, the free encyclopedia

google
circuit hobby

http://www.hobby-circuits.com

Please, enjoy our completely free circuit diagrams and electronics projects ... Here are some of over 800 projects from our free circuit diagrams database.

http://www.circuitstoday.com/tag/hobby-circuits

For all electronic hobbyists out there, CircuitsToday is listing some of our own hobby electronic circuits for you. Most of these circuits have been tested by …

http://www.homemade-circuits.com

practical electronic circuit shared

世界上第一個噴氣引擎動力，3D 打印 （ 列印 ）無人機亮相迪拜航展 Watch World’s First Jet-Powered, 3D Printed UAV Top 150 Mph!

https://www.youtube.com/results?search_query=+Jet-Powered+3D+Printed++
http://www.gizmag.com/worlds-largest-fastest-3d-printed-uav/40293/

World’s first jet-powered, 3D-printed UAV debuts at Dubai Airshow

Watch World’s First Jet-Powered, 3D Printed UAV Top 150 Mph!

World’s first jet-powered, 3D-printed UAV debuts at Dubai Airshow

 AARON HEINRICH  NOVEMBER 10, 2015  3 PICTURES

According to Dan Campbell (pictured) from Aurora Flight Sciences, the new UAV is believed to be the largest, fastest, and most complex 3D-printed aircraft ever produced

Image Gallery (3 images)

3D printing just hit another benchmark, with the recent announcement by Aurora Flight Sciences and Stratasys Ltd that they have developed a 3D-printed, jet-powered unmanned aerial vehicle (UAV) with the ability to reach speeds of up to 150 mph (241 km/h). Unveiled at this week’s Dubai Airshow, it is reportedly the largest and most complex UAV ever created using 3D printing.

世界上第一個噴氣動力，3D打印無人機亮相迪拜航展

 AARON海因里希2015年11月10號3張照片

據丹極光飛行科學坎貝爾（如圖），新的無人機被認為是最大的，最快的，也是最複雜的3D打印飛機有史以來生產

圖片庫（3圖像）

3D打印正好碰到另一個標杆，隨著近期宣布極光飛行科學與Stratasys公司公司thatthey已經開發出了3D打印，噴氣式動力的無人機（UAV）一起時速可達150英里每小時的能力（241公里/小時）。亮相本週的迪拜航展上，這據說是使用3D打印的最大，最複雜有史以來無人機。

The high-speed aircraft, designed by Aurora and manufactured and assembled by Stratasys, has a wingspan of 9 feet (3 m) and weighs only 33 lb (15 kg). Over 80 percent of it was created using a 3D-printing process called Fused Deposition Modeling (FDM) that allows for the production of large yet lightweight objects.

The fuselage itself was made of nylon, while the engine exhaust duct was 3D-printed in metal to withstand the high heat generated in that area of the aircraft.

高速飛機，極光設計和製造，並通過Stratasys公司組裝的，有9英尺（3米）的翼展，重量只有33磅（15千克）。超過80它創造了什麼使用稱為熔融沉積成型（FDM），三維印刷工藝，使生產大而輕便的對象的百分比。

機身本身是由尼龍製成的，而其中的3D印刷在金屬發動機排氣管道能夠承受在飛機的這一區域產生的高熱量。

Both companies said the main goal of the project was to illustrate that it was possible to quickly go from designing to manufacturing to flying a lightweight, jet-powered aircraft. The longest print time was for the center-body fuselage, which Stratasys said took about nine days to create. All of the rest of the components – wings, nozzle, fuel tank and other small parts – were manufactured concurrently and took anywhere from a few days to a few hours to complete.

A little more than a month was spent on the initial integration, assembly and testing. 

Stratasys said that with all of the integration elements now worked out, it could build a second one in two to three weeks from start to finish.

兩家公司表示，該項目的主要目標，說明它做了什麼可以快速從設計到製造到懸掛重量輕，噴氣動力的飛機去。最長printTime什麼Hanes的中心體機身，這Stratasys公司說大約過了九天創建。所有組件的其餘部分 - 機翼，噴嘴，燃油箱等小部件 - 被製造同時並採取任何地方從幾天到幾個小時才能完成。

不到一個月的初始集成，組裝和測試花費多一點。 

Stratasys公司說，所有的積分元的現在制定出來的(所有整體的元件都整合完成)，它可以建立一個第二次是在兩到三週內從開始到結束。

This is not the first UAV to be created via 3D printing. In April 2014, University of Sheffield's Advanced Manufacturing Research Center (AMRC) made a 3D-printed UAV airframe that could be printed and in the air within a single day. Later in October of the same year, they added electric motors that could propel the craft at speeds of up to 45 mph. Stratasys and a team from Boeing were involved in that project.

Here's a short video that explains the Aurora and Stratasys jet-powered UAV project.

Sources: Stratasys, Aurora

這不是要通過三維打印創建的第一個UAV。在2014年4月，謝菲爾德先進製造研究中心大學（AMRC）製成，可能是一天內打印並在空氣中的3D打印無人機機身。後來在同年10月，他們增加了電動馬達推動，可以在高達45英里每小時。Stratasys公司的速度和波音團隊參與了其實項目的工藝。

下面是一個簡短的視頻，解釋了極光和Stratasys公司噴氣動力無人機項目。

資料來源：Stratasys公司，極光

Top 5 Uses for Connex 3D Printing by Stsratasys
Stratasys公司的產品，耐熱且高強度 列印材料， 可用於塑膠射出成型模具，受力或高溫環境



GE GEnx-1B 3D Printed B787 Jet Engine Model with Thrust Reverser
http://3dprintingindustry.com/2015/09/01/spanish-maker-3d-prints-working-model-of-boeing-787-jet-engine/
其實只是個有趣的模型，不過真實展示 奇異 的 結構


The 3D Printed Jet Engine


3D Printing of a small Jet Engine


3d printed impeller jet engine
3D 噴砂


Proof of Concept - 3D Printed Jet Engine (Plastic)


General Electric 3D prints mini jet engine – and it works

Firefox 釋出新版 記憶體 開發者工具 ， 你可以看見 你的網頁， 網路應用程式 的 一切 包括 瀏覽創建物件，載入中的程序，javascript的字串， 變數，型態，堆疊區，

https://hacks.mozilla.org/2015/11/firefoxs-new-memory-tool/

Firefox’s New Memory Tool

By Dan Callahan, Nick Fitzgerald

Posted on November 12, 2015 in Developer Tools, Featured Article, and Firefox

Firefox’s New Memory Tool

By Dan Callahan, Nick Fitzgerald

Posted on November 12, 2015 in Developer Tools, Featured Article, and Firefox

Firefox 釋出新版 記憶體 開發者工具 ， 你可以看見 你的網頁， 網路應用程式 的 一切 

包括 瀏覽創建物件，載入中的程序，javascript的字串， 變數，型態，堆疊區， 

Firefox Developer Edition 44, released last week, includes a brand new memory tool to help you understand how your web applications are using and retaining memory. This is especially useful for developers targeting the mobile web, and thus working with constrained resources. Baptiste Kaenel, a freelance Creative Designer and Mozilla community member from France, put together a fantastic video demonstrating how to use this powerful new tool.

The Memory tool works by taking snapshots of everything in memory, and presenting them as a tree/table with various grouping settings. By default, the contents are grouped by “coarse type,” where each thing in memory falls into one of four classifications:

Objects: JavaScript objects. Further grouped by each object’s internal [[Class]] name.

Scripts: The JavaScript source text loaded by the web application and its resulting executable machine code produced by SpiderMonkey’s JIT compiler, IonMonkey.

Strings: JavaScript strings used by the web application.

Other: Miscellaneous structures that do not fit in the above categories.

You can also group the snapshot by “object class,” which groups by their JavaScript [[Object]] class, or by “internal type,” which groups things by their C++ type names. This latter view is mostly useful for Firefox platform developers.

Perhaps most interesting is the fourth and final grouping option: “allocation stack.” You have to turn this option on manually by ticking the “record allocation stacks” checkbox at the top of the Memory panel, since tracking allocations can degrade the application’s performance while the box is checked. The payoff, however, is worth it: this view groups the things in the heap by the source location in your JavaScript code. Unlike other groupings, this view directly ties items in memory back to the code that actually created them.

The list of snapshots also includes the total MB of memory accounted for in the snapshot. You can take several snapshots to help determine at a glance whether your application’s memory usage is growing or shrinking over time.

To learn more, check out the Memory tool documentation on MDN, and remember, we want to hear from you! Download Firefox Developer Edition today, and let us know what tools or enhancements you want to see next by leaving a comment or tweeting at @FirefoxDevTools.

About Dan Callahan 

Engineer with Mozilla Developer Relations, former Mozilla Persona developer.

• dancallahan.info
• @callahad

More articles by Dan Callahan…

About Nick Fitzgerald 

Nick hacks on the Firefox Developer Tools and the SpiderMonkey JavaScript engine. He is also a co-author of the source map specification, and blogs infrequently at fitzgeraldnick.com and you can find him on IRC as fitzgen.

• fitzgeraldnick.com
• @fitzgen

More articles by Nick Fitzgerald…

自己架主機 ，自己雲服務 http://liminality.xyz/self-hosting/

自己架主機 ，自己雲服務

http://liminality.xyz/self-hosting/

SELF-HOSTED ALTERNATIVES TO POPULAR CLOUD SERVICES

PUBLISHED NOVEMBER 6TH 2015 BY JODY RIBTON

ownCloud 自建網路儲存空間https://owncloud.org

OwnCloud is a great replacement for Dropbox, Google Drive or Microsoft's OneDrive. It has a slick web interface, desktop sync clients for Linux, Windows and OS X, and mobile clients for Android and iOS.

Tiny Tiny RSS 自建 訊息傳播 與 網站新聞異動發布  RSS https://tt-rss.org/gitlab/fox/tt-rss/wikis/home

Google Reader's untimely demise spawned two popular feed aggregators, Feedly and Feedbin. Tiny Tiny RSS is a fantastic alternative. It supports content filtering, podcast aggregation, plugins, theming, and social media sharing. It's primarily a web app, but it also has an official Android client.

Ghost 同創作平台，寫部落格或文章 的 服務https://ghost.org

This blog runs on Ghost. Ghost.org offers a hosted version, but you can also download it here and self-host. Ghost provides a great writing experience — and unlike Medium, Svbtle and Blogger, you have complete control over your data.

GitLab 就是 Git 簡單版，附RSS

https://zh.wikipedia.org/wiki/Gitlab

https://zh.wikipedia.org/wiki/GitHub

https://about.gitlab.com

GitLab is great for self-hosting both public and private Git projects. It has a robust permission system, supports merge requests, works well with continuous integration servers, and includes a per-project wiki and issue tracker. It's not as social as GitHub, but it's just as powerful. Tiny Tiny RSS (above) is hosted on GitLab.

RocketChat 字面上來說就是個語音視訊聊天室吧

https://rocket.chat

RocketChat is a polished, extensible Slack alternative. It supports video and audio conferencing (which Slack lacks), link previews and file sharing, and has native clients for Windows, OS X, Linux, Android and iOS.

Ampachehttp://ampache.org

就是個多媒體傳流 音樂 與檔案管理的分享平台， 算是個已經架好的網站吧，另外你可以 “ 同步雲 ” ，就是 你可以下載 App， 與網站上的帳號 “” 同步

Ampache is a simple web-based audio and video streaming server. Ampache could make a good alternative to Rdio, Spotify or iTunes Music, or you could use ownCloud to synchronise your music between systems.

A web based audio/video streaming application and file manager allowing you to access your music & videos from anywhere, using almost any internet enabled device

線上看 dot Net （.NET） 原始碼http://referencesource.microsoft.comReference Source .NET Framework 4.6

線上看 dot Net （.NET） 原始碼 http://referencesource.microsoft.com Reference Source .NET Framework 4.6

Browse the .NET Framework source code online, with search and navigation powered by Roslyn.

See details at the .NET Framework blog.

How to configure Visual Studio for debugging .NET framework

Find type and member declarations, files, assemblies and GUIDs

Search for: Examples

Full or partial type or member name.

The string needs to be a prefix, "Builder" won't find "StringBuilder", but will find "BuilderType".

Use quotes to find exact string (turns off prefix search).

BitConverter

System.Console

Debug.Asse

"StringBuilder"

Use "assembly" prefix to search for assembly names.

assembly System.

Use a keyword to filter by member type:

assembly, type, class, struct, interface, enum, delegate, method, property, event, field, file

class Assembly

struct DateTime

interface IQueryable

Add words separated by space to filter results to only those that contain all of the words. Can also filter by assembly name.

task factory

StringBuilder mscorlib

Find .cs or .vb files.

Enumerable.cs

Find projects by path.

ndp\fx\src\data

Find GUIDs mentioned in string literals.

03973551-57A1-3900-A2B5-9083E3FF2943

Easy hyperlinks to files, types, members, projects/assemblies

When viewing the source code in a file, two links at the bottom provide shortcuts to the current file and the current assembly.

Click on a line number to get a hyperlink to that particular line.

Feature Example

Link to assembly /#System.Core

Link to file /#mscorlib/system/environment.cs

Link to line number /#mscorlib/system/environment.cs#56

Link to a type/member /mscorlib/a.html#1f55292c3174123d (right-click the definition and choose Copy Shortcut)

Link to search results /#q=Button%20PresentationFramework

Features

Feature Description

Go To Definition Click any identifier to go to definition.

Find All References Click the symbol name in definition to find all references. Find References also shows derived types, interface implementations, base members, overriding and overridden members, class instantiations and field or property writes separately.

Highlight References Click on a local variable, parameter or type parameter to highlight all references inline in source.

Document Outline In the document view, show the list of types and members in the file.

Project Explorer Display the tree view of files in the current project/assembly. References and Used By folders list dependent and depending assemblies (not available for mscorlib).

Namespace Explorer Namespaces and types in the current project/assembly.