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Senin, 14 April 2014

LInux pada ATmega1284P

Mungkin beberapa orang tertawa ketika mendengar Sistem Operasi Linux diimplementasikan ke dalam ATmega1284P. Akan tetapi Dmitry Grinberg dapat melakukannya dengan sempurna....


Sebagai prosesor utama digunakan ATmega1284P. Selain itu kebutuhan akan RAM dapat diakali dengan menggunakan 30-pin SIMM memory module.
Perihal urusan tempat penyimpanan, digunakan SD Card dengan kapastias 1GB yang dapat diakses melalui antarmuka SPI.


Video :



WebServer dengan Arduino dan WIZ550IO

Berikut ini merupakan contoh aplikasi webserver dengan Arduino dan WIZ550IO.

From Youtube, Embedded Web Server (Arduino Wiz550io) – Mortadha Dahmani
This video is Programming of WEB Server using WIZ550io.
He used Arduino UNO and Arduino Sketch.



Download Lib & Source From:
https://github.com/MAMDGSM/EthernetMAMDWiz

Sumber : http://wizwiki.net/embedded-web-server-arduino-wiz550io/

Senin, 07 April 2014

Cara koneksi ke Google (HTTP/HTTPS) dengan menggunakan WIZFI250

Berikut ini panduan untuk melakukan koneksi ke Google dengan menggunakan WIZFI250.


How to Connect to Google(HTTP/HTTPS) Using WizFi250

We will demonstrate the connection to Google web server via HTTP(port 80) and HTTPS(port 443) with WizFi250.

<HTTP Client Example>
(AP Association)
AT+WLEAVE
[OK] AT+WSET=0,Wiznet_Kaizen
[OK] AT+WSEC=0,OPEN
[OK] AT+WNET=1
[OK] AT+WJOIN
Joining : Wiznet_Kaizen
Successfully joined : Wiznet_Kaizen

[Link-Up Event] IP Addr    : 192.168.15.10
Gateway    : 192.168.15.1
[OK]
(This is for easy parsing the data. If you want to parse the header manually, you can omit this step.)
AT+SFORM=000000000
[OK]
(Find IP address of google.com)
AT+FDNS=google.com,3000
74.125.128.102
[OK]
(Connect to the google web server via HTTP(80))
AT+SCON=O,TCN,74.125.128.102,80,0,0

[CONNECT 0] [OK]
(Send Web Request)
AT+SSEND=0,,,18
[0,,,18] GET / HTTP/1.1\r\n\r\n
[OK]
(Now, you can receive the data from google web server via HTTP like below.)
HTTP/1.1 302 Found
Location: http://www.google.co.kr/?gws_rd=cr&ei=pIz0UvbYBqmZiQf2zIDgCA
Cache-Control: private
Content-Type: text/html; charset=UTF-8
Set-Cookie: PREF=ID=55cbe1a26a10a4a4:FF=0:TM=1391758500:LM=1391758500:S=V39C5p8-28xe7gVT; expires=Sun, 07-Feb-2016 07:35:00 GMT; path=/; domain=.google.com
Set-Cookie: NID=67=eAwBBej-W68bRryLLG7O86lG5BkNJzD5GpFZxbUnkHmHs6DyaeocsgLh4yd8mYc5pzyQJxTdC4f7GfqSrbC6orrtgErxRRSC0hxloj6B53eKbRYzWeIv5PGF9UT97v2c; expires=Sat, 09-Aug-2014 07:35:00 GMT; path=/; domain=.google.com; HttpOnly
………………………………

(Disconnect the connection with google web server)
AT+SMGMT=ALL

[DISCONNECT 0] [OK]
And, below picture is the Wireshark capture of above HTTP example.
222


<Get HTTPS Example>

(By this step, you can refer to the <Get HTTP Example>.)
(Connect to the google web server via HTTPS(443))
AT+SCON=O,TCS,74.125.128.102,443,0,0

[CONNECT 0] [OK]
(Send Web Request)
AT+SSEND=0,,,18
[0,,,18] GET / HTTP/1.1\r\n\r\n
[OK]
(Now, you can receive the data from google web server via HTTPS like below.)
HTTP/1.1 302 Found
Location: http://www.google.co.kr/?gws_rd=cr&ei=pIz0UvbYBqmZiQf2zIDgCA
Cache-Control: private
Content-Type: text/html; charset=UTF-8
Set-Cookie: PREF=ID=55cbe1a26a10a4a4:FF=0:TM=1391758500:LM=1391758500:S=V39C5p8-28xe7gVT;
………………………………

(Disconnect the connection with google web server)
AT+SMGMT=ALL

[DISCONNECT 0] [OK]
And, below picture is the Wireshark capture of above HTTPS example.
333

Posted by: Steve Kim
Sumber : http://wizwiki.net/how-to-connect-to-googlehttphttps-using-wizfi250/

Rabu, 02 April 2014

Kontes Aplikasi Embedded Dengan Menggunakan WIZ550io Ethernet Module

Memiliki ide-ide kreatif dalam hal aplikasi embedded? Ikuti saja kontes aplikasi embedded yang selenggarakan oleh WIZnet, Circuit Cellar, dan Elector.


wiznet_fullMARCH2014_v4
Have an idea for an innovative, ’Net-enabled electronics system? Enter the WIZnet Connect the Magic 2014 Design Challenge for a chance to win a share of $15,000 in prizes and gain recognition by Elektor International Media and Circuit Cellar.  Implement WIZnet’s WIZ550io Ethernet module, or W5500 chip, in an innovative design, document your project, and submit your entry. Eligible entries will be judged on their technical merit, originality, usefulness, cost-effectiveness, and design optimization.
CHALLENGE LAUNCH: March 3, 2014 (12 PM EST) 
SUBMISSION DEADLINE: August 3, 2014 (12 PM EST)
The following items should be submitted with a Project Registration Number to be deemed an acceptable Entry:
  • Abstract: Project synopsis(approx. 500 words), schematic, block diagram, project photo, code snippet
  • Complete Documentation: Detailed project description.
  • Source Code
  • Note: The block diagram, project photograph, and schematic must also be supplied as separate files
Prize
• $5,000 First Prize
• $3,000 Second Prize
• $2,000 Third Prize
• Five (5) Honorable Mention prizes of $1,000 each.
Resource & Forum
• For more information: http://circuitcellar.com/wiznet2014/