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Lake Toba North Sumatra Indonesia

January 19, 2013 in Sight Seeing & Hobby

In October 20th 2012, i had an unforgettable moment to visit the largest lake in Indonesia and South East Asia, Lake Toba. Here is some of the beautiful scenery i captured with my digital camera. Enjoy ..

Birds @ Lake Toba

Birds @ Lake Toba

The Hanging Rock (Batu Gantung) Lake Toba Indonesia

The Hanging Rock (Batu Gantung) Lake Toba Indonesia

Lake Toba

Lake Toba

Speed Boat @ Lake Toba

Speed Boat @ Lake Toba

 

Samosir Island Welcome sign

Samosir Island Welcome sign

The details location from Google Maps

View Larger Map

Wiki Information click here

Web Server Embedded System Using Beagle Board

January 9, 2013 in Fun Things

This is an example how we can build a web server under an embedded system such as beagle board. Maybe a few years ago we experienced some difficulties if we want to apply a TCP/IP communication under microprocessor or microcontroller systems, we should add additional equipment to our minimum systems and sometimes it takes time and we need to hack the systems a lot. but now, there is many embedded systems are equipped with on board TCP/IP modules so it is easy now for us to build a systems that connected to a computer or TCP/IP network.

There are many vendors that builds this kind of systems such as arduino, raspberry, and beagle board. and now i want to try to make a web servers running in beagle board systems, and i promise … its very super duper easy ..

first of all we should prepare our beagle board systems, if you want to take a closer look to this systems you can find in http://beagleboard.org/

The beagleboard systems is include the operating systems package using Angstorm OS, Angstorm OS is build with openembedded and customized to suit the embedded system needs, for details you can find it in http://www.angstrom-distribution.org/

But if you want it to start installation from scratch you can find the tutorial in http://www.ibm.com/developerworks/linux/library/l-beagle-board/

to communicate with our beagleboard systems we can connect our PC to the beagleboard using a serial to USB adapter, and then we can set the baudrate to 115200 using our favorite remote tools such as putty, Teraterm or even hyper terminal software.

 

 

 

 

 

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EMBEDDED SISTEM WEB SERVER

January 4, 2013 in Research, Riset

Adharul Muttaqin ,S.T.,M.T

Sabriansyah Rizqika Akbar, S.T., M.Eng

Issa Arwani, S.Kom., M.Sc

Abstrak: Embedded sistem saat ini menjadi perhatian khusus pada teknologi komputer, beberapa sistem operasi linux dan web server yang beraneka ragam juga sudah dipersiapkan untuk mendukung sistem embedded, salah satu aplikasi yang dapat digunakan dalam operasi pada sistem embedded adalah web server. Pemilihan web server pada lingkungan embedded saat ini masih jarang dilakukan, oleh karena itu penelitian ini dilakukan dengan menitik beratkan pada dua buah aplikasi web server yang tergolong memiliki fitur utama yang menawarkan “keringanan” pada konsumsi CPU maupun memori seperti Light HTTPD dan Tiny HTTPD. Dengan menggunakan parameter thread (users), ramp-up periods, dan loop count pada stress test embedded system, penelitian ini menawarkan solusi web server manakah diantara Light HTTPD dan Tiny HTTPD yang memiliki kecocokan fitur dalam penggunaan embedded sistem menggunakan beagleboard ditinjau dari konsumsi CPU dan memori. Hasil penelitian menunjukkan bahwa bahwa dalam hal konsumsi CPU pada beagleboard embedded system lebih disarankan penggunaan Light HTTPD dibandingkan dengan tiny HTTPD dikarenkan terdapat perbedaan CPU load yang sangat signifikan antar kedua layanan web tersebut.

 

Kata Kunci : Embedded System, Web Server.