VS1053 Codec

• VS1053 Codec + MicroSD Breakout - MP3/WAV/MIDI/OGG Play + Record - v2

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AutoConfigured Address State

Autoconfigured addresses are in one or more of the following states:

• Tentative
  The address is in the process of being verified as unique. Verification occurs through duplicate address detection.
  ‘Tentative’뜻 처럼 잠정적인 주소로 유일한 주소인지 확인 절차에 쓰인다. DAD를 통해 Verifacation이 이루어진다.


• Preferred
  An address for which uniqueness has been verified. A node can send and receive unicast traffic to and from a preferred address. Router Advertisement messages include the period of time that an address can remain in the tentative and preferred states.
  ‘Preferred’뜻 처럼 선취권이 있는 주소로 유일한 주소로 확인된 주소이다. 어떤 노드는 preferred 주소을 할당받은 다른 노드와의 송수신이 가능하다. RA는 tentaive와 preferred state를 유지할 수 있는 주기(period time)을 포함한다.


• Deprecated
  An address that is still valid but whose use is discouraged for new communication. Existing communication sessions can continue to use a deprecated address. Nodes can send and receive unicast traffic to and from deprecated addresses.
  ‘Deprecated’뜻 처럼 사라질 주소로 여전히 Valid한 주소이지만, 새로운 통신을 위해 주소의 사용하지 못하게 한다.


• Valid
  An address from which unicast traffic can be sent and received. The valid state covers both the preferred and deprecated states. Router Advertisement messages include the amount of time that an address remains in the valid state. The valid lifetime must be longer than or equal to the preferred lifetime.
  ‘Valid’뜻 처럼 유효한 주소로 이 주소를 이용한 unicast의 송수신이 가능한다. Valid State는 Preferred와 Deprecate State를 커버한다. RA는 tentaive와 preferred state를 유지할 수 있는 주기(period time)을 포함한다. Valie lifetime은 Preferred Lifeime이상으로 길어야 한다.


• Invalid
  An address for which a node can no longer send or receive unicast traffic. An address enters the invalid state after the valid lifetime expires.
  ‘Invalid’처럼 더 이상 unicast의 송수신을 할 수 없는 유효하지 않은 주소이다. Valid lifetime이 만료되면 Invalid State상태로 들어간다.

The following figure shows the relationship between the states of an autoconfigured address and the preferred and valid lifetimes.



With the exception of link-local addresses, address autoconfiguration is specified only for hosts. Routers must obtain address and configuration parameters through another means (for example, manual configuration).
링크 로컬 주소를 제외한 주소 자동 구성은 호스트에 대해서만 지정된다. 라우터는 다른 수단을 통해(ex. Manual Configuration) 주소와 구성 매개 변수를 얻어야 한다.

Ref: http://technet.microsoft.com/en-us/library/dd392266(v=ws.10).aspx

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midroduino

• Core board of Microduino series


• Main chip: ATmega328P/ATmega168PA


• Compatible with Arduino Uno, the same hardware architect as Uno.


• UPin-27: Microduino standard interface


• Shield : WiFi, Ethenret, BT, 2.4GHz RF, GPS…

openSUSE

Compared to the old image, this one has some advantages:
- It is easier to resize as the root partition is the last one
- Compressed image is much smaller
- Reproducible image build, so easy to customize
- floating point support, so could be faster
- 5200 successfully built packages from openSUSE:Factory:ARM

http://www.engadget.com/2013/09/11/hp-chromebook-14-with-haswell-hands-on-video/
By Nicole Lee posted Sep 11th, 2013 at 9:13 PM

Chromebook

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• include a HDMI port, 16GB of storage, USB 2.0 and USB 3.0 ports, an HD webcam, an SD card slot
  
  If you decide to buy one, it comes with 100GB of Google Drive for free for two years. The HP Chromebook 14 is priced at around $299.99

Tessel

Tessel an internet-connected microcontroller programmable in JavaScript that enable developers to extend the reach of the web to physical things. Since Tessel is compatible with Node.js and leverages the Node Package Manager, adding additional capabilities is as easy as plugging in a Tessel module and npm installing its firmware. Get Tessel and start making smart, internet connected devices!

www.dragoninnovation.com/projects/22-tessel

Arduino Yún

• price of 69$/52€ (vat not included) and distributors worldwide


• ATMega32u4 microcontroller and on the Atheros AR9331 running Linino


• a customized version of OpenWRT


• Arduino IDE Version 1.5.4 (available now for download)


• Temboo