OLinuXino Open Source Hardware Linux Computer project will be presented at Elevate festival in Graz Austria – October 25th


The Elevate Festival annually presents a unique combination of critical political discourse, technology, art and contemporary music.

2014 will be the 10th edition of Elevate and there is an event specially on CLEAN IT, Fair IT (http://www.clean-it.at/) and Open Source Hardware and Software and the interconnections of these topics.

We are invited to present OLinuXino project on Octiber 25th.

Weekend Programming Challenge – Week #62 solutions

1000000 (1)

We got 15 solutions this weekend:

  • PHP x3
  • Python x3
  • C x2
  • Go x1
  • Nimrod x1
  • C# x1
  • Java x2
  • C++ x2

You can browse them all at GitHub

The Raspberry Clones attack



I got interesting email this morning:

Hi Mr. Tsvetan Usunov,
How are you?
This is David from XXX which is a professional manufacturer of the credit card sized computer Raspberry Pi .
I find you are doing the business of embedded computers in your website,I guess  you would have the interest in our products.
Now we can provide you the latest version of Raspberry pi (type B+) with the competetive price and good service.and we serve several distributor in your country now.you can see that the companies in your country sell the Pi in their website .http://www.snapdeal.com/brand/raspberry-pi .
If you have the interest in this products ,please kindly let me know.thank you
Best Regards, 

Well, I'm definitely not interested to re-sell Raspberry Pi, and far away from India, but out of the curiosity I asked about the pricing, the answer was immediately:

Hi Tsvetan,
Thanks for your reply.
For type B: USD 31 ,
For type B+:USD 32
FCA HK ,Delivery time: 4~7 days.
Please review the attached file for the difference between type B and type B+.
Anything you wanna know ,please feel free to contact me. thank you.
Best Regards,

So company in HK is manufacturing and selling clones of Raspberry Pi -> so far about the closed source designs which prevent you from being copied :)

No matter if your design is OPEN or CLOSED this do not stop others to copy and clone your design, this is not rocket technology after all, if they have one of your boards they can de-solder all components, then strip the board layer by layer and copy it 1:1.

The real protection for Raspberry Pi was that Broadcom didn’t sell few years their chips to anyone else than the RPF, but with the recent announcement http://www.eetimes.com/document.asp?doc_id=1323198 Broadcom seems didn’t resist and start selling these chips to anyone with cash.

There is one more original design which I saw today again with Raspberry Pi based processor:



Board which run Linux but have no Ethernet connectivity and cost $30. To me at least seems that Raspberry Pi B+  for $5 more gives you +4 USB hosts and Ethernet to be a better deal. This probably try to compete with the recently announced Raspberry Module as have more sophisticated power supply.

There is an interesting discussion about this board on Raspberry Pi forum

RT5350F board update


We got heap of good tips and suggestions about RT5350F some posted on the blog more by e-mails. Thanks guys!

What we also saw is that all these devices on the market are just PCBs and missing something important to complete project – plastic enclosure.

So as next step after finishing RT5350F-OLinuXino prototypes and test them will be to try to fit it inside the DB25 plastic shell like PIC-MICRO-WEB:


With just one Ethernet connector and GPIOs and power supply on the 25 pin connector.

And another version with WIFI with external SMA connector on the place of the Ethernet connector, so antenna like this one could be connected:



This way RT5350F-OLinuXino will become much more useful and easy to PLUG-AND-PLAY with simple DB25 connector to other boards

On the DB25 connector there will be UARTs, I2C, I2S, SPI, GPIOs. If we find space we may add I2C ADC as well.

Still is not clear if this will be good solution as we may not have enough space or the RT5350 may not cool well inside plastic box, we will see after we complete first prototypes.


Quad Core Cortex-A7 for $4

A33 Shipping Now-1

Allwinner just announced that in July they start the mass production of their A33 Quad core Cortex-A7 processor targeting low end tablets and media players.

With 1080p playback, MALI400MP2, integrated HIFI Audio codec, low power consumption the target is clear – handheld media player devices and tablets, so far nothing new.

The new is that A33 comes from the very beginning at shocking low price of only $4 i.e. $1 per core or about same price as ATmega328 in single quantity in Digikey :)

So either 8-bit processors are overpriced either the competition of these tablet SoC is so crazy that it drives the vendors to fall on the rock bottom from the start.

Allwinner used to keep the prices of the newly released chips high at the beginning then to decrease them at half after a year. A31 was something like $20 when they start selling it now is under $10.

Unfortunately A33 have no Ethernet connectivity, so not quite good choice for Linux computer.

So far A20 is Allwinner best solution with both SATA and Ethernet interfaces, even their newest and most powerful A80 missing SATA.

Enabling KVM virtualization on ARM Allwinner A20-OLinuXino-MICRO


We got this notification via Twitter for this Guide how to enable KVM Virtualization on A20-OLinuXino-MICRO.


Friday Free Board Quiz – Week #94 prize is IR distance sensor SNS-GP2Y0A21YK0F


SNS-GP2Y0A21YK0F is perfect gadget for your next project. It can measure distance from 10 to 80 cm and have analog output which you can read easily.

To participate in the Quiz is enough to Re-tweet the Twitter Quiz announcement message.

To double your chances you have to answer the Quiz question :)

Today we will post on Twitter our question.

You have time to re-tweet until Monday 28th of July.

In Monday we will count  the correct answers and ask random.org to generate random number in range then announce the winner and ship the board by airmail.

Good Luck!

Previous Older Entries


Get every new post delivered to your Inbox.

Join 509 other followers