RabbitMax another Open Source Hardware project from Plovdiv is on Indiegogo

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Leon is Open Source enthusiast and active member in Hackafe (the local hackerspace) and TuxCon.

He is mostly involved with software development, but recently made his first steps in hardware designing Raspberry Pi add-on board he named RabbitMax. Here is the GitHub repo.

He is running successful Indiegogo campain and made 65% funding out of his humble EUR 512 (! how this number came to his head is mistery for me??) goal for 3 days!

You can be sure you will have unique board as he is soldering them all by himself, it’s like personal signature!

Bitcoin price tracker with MOD-WIFI-ESP8266-DEV on Indiegogo

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We got note that one of our boards MOD-WIFI-ESP8266-DEV is in the newly developed open source hardware product – Bitcoin price tracker

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They are running now Indiegogo crowdfunding campain. We wish them success!

As being open source this product could be easily re-programmed to track price trends of other goods as well, like gold, silver, tin, why not DDR memory and Flash memory prices, and to give you alterts when the price go above or below given price point?

Ethernet-Be-Gone with RT5350F-OLinuXino-EVB

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We proudly announce that we got new product – LAN killer 🙂

We found this new feature during our normal development work. If you power up RT5350F-OLinuXino-EVB connected to local network and you do not up the Ethernet interface within 5 minutes (like if you loading new firmware in the SPI Flash or debug) the local LAN stops working! All attempts to hit sites outside return DNS error.

It’s weird as if you up the Ethernet interface everything is fine, also this DNS block begins not immediately but about 5 minutes after you power the board connected in the network.

Our internal LAN is hairball for sure, but we are puzzled why this happens?

Can someone with RT5350F-OLinuXino-EVB try and confirm our findings?

We did another experiment with USB-Ethernet-AX88772B, we plug it to one of our Linux boards with USB host like A33-OLinuXino and do not up the interface and same problem is reproduced.

I’m sure this is probably our intranet lame settings, but it will be interesting people with more experience to share what cause this problem.

Meantime if you want to piss off your boss or colleague … you know what to try 😀

 

Open Theremin – Urs Gaudenz is our hero

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Few weeks ago we spotted on Hackaday the post about Open Theremin, on first look nothing challenging, just classic two HF oscillators with mixer which detects your body/hands proximity to the antennas and change the frequency.
Connected to Arduino and generating variable pitch and frequency tones.

The real gem was in one of the comments. The video how this guy is manufacturing the kits with do it yourself pick and place machine which he built from $50 ink jet printer mechanics.

Knowing how demanding to operate are the real professionl pick and place machines I know what amount of work is to build such thing from nothing, to program and debug it and to actually make it work something useful. This is months of efforts! The DIY P&P which actually works deserves our admirations!

Bulgaria has the highest average reputation among top users in the Stack Overflow

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VB News posted interesting article. They analyzed data from StackOverflow where coders exchange Questions and Answers. Users of the platform vote up or down answers to questions this way ranking the coders who answer the questions and problems posted.

Their analyze shows that London has the highest number of top Stack Overflow members, with 394 that have a reputation over 5,000.

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Another ranking based on the average country ranking of Stack Overflow users above the 5,000 threshold shows that Bulgaria has the highest average reputation among top users in the
world.

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I have no idea how correct is this analyze, but I’m glad to see finally something IT related, where Bulgaria is #1 in the world 🙂

Adafruit ranked #11 from top 20 US Manufacturers

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Adafruit is company which designs and makes electronic boards and tutorials about Arduino and Raspberry Pi. Despite of the common believe that to manufacture in USA is expensive and everybody has to move to China, they operate in one of the most expensive place on Earth –  New York, USA and prove that to make electronics is possible everywhere, when you have automatic assembly machines it doesn’t much matter if these machines work in China or USA.

I always though that Adafruit is smallish company until I read this article which says they are ranked #11 out of top 20 US Manufacturers!

Same article says Adafruit have 50+ employees and operate in 1500 square meters factory, so they really aren’t so big, so either article is wrong either other US Manufacturers are also small, which makes not much sense with the strong electronics industry in USA. Is the article wrong or I miss something?

EDIT: Vladimir pointed out in the comments that #11 is for NY not USA 🙂 this makes sense!

Building a Brewery Using an OLinuXino

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Did you ever dreamed to have small beer brewery at home for personal use ? 🙂

Now with this project at Element14 this seems easy to re-produce!

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