Video: Get to grips with the BeagleBone

We're all for BeagleBoards here on Gadget Master and this is one I meant to flag before - Texas Instrument's system has a little brother: the BeagleBone, powered by the company's Sitara ARM Cortex-A8 processor.

"It builds in the most loved features of the BeagleBoard but has shrunk the size and price while adding more I/O connections," boasts TI in the video below. The RRP is $89.

To get started, simply plug it into your PC (Windows MacOs or Linux) and you can begin development... It will appear as a Flash drive and you will be able to extract the files to get you going.

Features of the hardware spec highlighted by BeagleBoard.org include:
    * Board size: 3.4" x 2.1"
    * Shipped with 2GB microSD card with the Angstrom Distribution with node.js and Cloud9 IDE
    * Single cable development environment with built-in FTDI-based serial/JTAG and on-board hub to give the same cable simultaneous access to a USB device port on the target processor
    * Industry standard 3.3V I/Os on the expansion headers with easy-to-use 0.1" spacing
    * On-chip Ethernet, not off of USB
    * Easier to clone thanks to larger pitch on BGA devices (0.8mm vs. 0.4mm), no package-on-package memories, standard DDR2 vs. LPDDR, integrated USB PHYs and more.

What is the BeagleBone capable of doing? They are glad you asked...

At over 1.5 billion Dhrystone operations per second and vector floating point arithmetic operations, the BeagleBone is capable of not just interfacing to all of your robotics motor drivers, location or pressure sensors and 2D or 3D cameras, but also running OpenCV, OpenNI and other image collection and analysis software to recognize the objects around your robot and the gestures you might make to control it. Through HDMI, VGA or LCD expansion boards, it is capable of decoding and displaying multiple video formats utilizing a completely open source software stack and synchronizing playback over Ethernet or USB with other BeagleBoards to create massive video walls. If what you are into is building 3D printers, then the BeagleBone has the extensive PWM capabilities, the on-chip Ethernet and the 3D rendering and manipulation capabilities all help you eliminate both your underpowered microcontroller-based controller board as well as that PC from your basement.

Read more details >>

Video: The Four-bit Maze challenge, via Arduino

This is a good one, from Gadget Master Oskar van Deventer. He had a vision for a mechanical or electronic puzzle without a screen and without lights, purely tactile and purely mechanical...

Based on an Arduino UNO microcontroller, it's programmed for ten different levels of difficulty, with an Arduino Motor Shield operating the motorfaders, reports Engadget.

He writes:

The Four Bit Maze is an electronic mechanical puzzle that is 100% tactile. The object of the puzzle is to move all four sliders from the "0" position to the "1" position. 

Each challenge has only 16 binary states, and the operation of each challenge is 100% deterministic without any hidden states. Some challenges are easy and playful, whereas others are fiendishly hard.

How does it work? Check out the video below:

If you wish, you can buy the device for €435 from Oskar directly.

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Most read Gadget Master posts in January

Well, the New Year is here and is already a month underway... Time to ask the question: which posts have proved the most popular on Gadget Master among your peers, in January?

Well, the answer covers IO boards, LED displays, the Raspberry Pi and a whistle-activated light switch...

Let's take it in reverse order:

10. How to build a rotating LED display

9. Build your own wand based barcode scanner

8. A DIY Android Gadget Starter Kit

7. How to build a whistle-activated light switch

6. Android advances to centre stage

5. Keep your property where you can see it

4. Build your own LED cube

3. The IOIO Android breakout board competition

2. Build your own laser harp

1. Raspberry Pi #0001 goes for £3,500 on eBay

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Create your own Terminator Arm!

Are you up to the challenge of creating your own Terminator Arm, complete with LED lighting effect?!

I ordered an Android IOIO board from SparkFun recently - for the current Gadget Master compo - and this tutorial on the same site caught my eye.

It's a tutorial by one "T Zero", taking us through the creation of afore mentioned robotic arm....

They begin:

Being a solder jockey, I'm not the best at programming and making things light up and blink. But, I am a wiz with a soldering iron. I enjoy making sculptures and little objects you can set at the edge of your desk to strike up a conversation. For this tutorial, I was trying to come up with the best sculpture or desk ornament - something every nerd or geek like myself would be proud to put on display. Something that didn't cost much and was a good rainy afternoon project. This project was done with trashed parts I found around the shop, and if your workstation looks anything like mine, you should be able to find these or similar parts.

The full list of parts is as follows:

• Buzzer              
• Standoff
• Pogo Pins x2
• 10k Trimpot x2       
• Machine pin headers
• 16MHz crystal
• Reed switch
• Any PTH LED

And as pictured:

He takes you through the various stages of the project, with pictures. For example:

"Once you have soldered the reed switch into place, slide the stand off over both LED leads. This is probably the most difficult part. In order to solder to the stand off, you need to hold a glob of solder on it, heating it up."

Check out the full tutorial >>

Not-So-Smartphones of 2011

Not sure about about this one, the premises or the conclusion (that all older Android phones should be considered 'orphans' and that Android should be identified as the most vulnerable platform)... 

Anyway, starting at the top, the Mannerisms blog recently featured a Top Ten of "riskiest phones", which immediately caught my eye for Made By Monkeys.

The idea is that certain phones - most notably Android phones - are no longer getting software updates, which means known vulnerabilities or bugs are going unfixed or unpatched.

Bit9 - a company that specialises in application Whitelisting services - has identified the "Dirty Dozen" of such phones, in a snappily entitled blog, Orphan Android - The Not-So-Smartphones of 2011. Android, specifically, is in their sights:

The company writes:

Unlike Apple iOS, RIM Blackberry or Windows Phone, the phone manufacturer - not the software vendor - is responsible for providing Android software updates to their smartphone.  Phone carriers also inject themselves into the process, selling further customized models and sometimes charging data usage for software updates. The result is chaos. As anyone who has ever owned an Android phone can attest, waiting for your phone to receive the latest Android release is like walking through prickly bushes - slow, painful, and sometimes buggy.

They identify 'Orphan Android' devices as "phones running any Android OS 2.3.3 or less."

Which were Bit9's "Dirty Dozen" Android phones?

1. Samsung Galaxy Mini

2. HTC Desire

3. Sony Ericsson Xperia X10

4. Sanyo Zio

5. HTC Wildfire

6. Samsung Epic 4G

7. LG Optimus S

8. Samsung Galaxy S

9. Motorola Droid X

10. LG Optimus One

11. Motorola Droid 2

12. HTC Evo 4G

Instead of a Dirty Dozen they could have had a Baker's Dozen because there at number 13, they say, was the Apple iPhone (version 4 and older models)...

Bit9 writes:

The majority of smartphones worldwide are running the Android operating system. The open nature of the platform has enabled both innovation and creativity in the mobile space. However, the distribution model adopted by phone manufacturers and their carriers has created a chaotic and insecure environment where it can take several months for important updates to be distributed, if at all. At the heart of the issue, providing software updates for Android phones is currently the responsibility of the individual hardware vendors along with their different carriers.

This would be akin to buying a PC from Dell and relying on Dell to coordinate with your home Internet provider, instead of Microsoft, to update your Windows software. With so many PC makers and Internet providers, the result would be a complete fragmentation of the market, with different computers having different versions of Windows depending on where they purchased the PC and where they live. That is exactly what has occurred within the Android smartphone market. In many cases, the only recourse a consumer has, if they want the latest and most secure software, is to purchase a new phone. 

You can read more on their research on their website - Orphan Android: Not-So-Smartphones of 2011 (PDF)

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Most Read in January - The Made By Monkeys popularity stakes

Show us the Best of the Worst! If you've had a recent run-in with a cheaply-made, inferior product, tell us about it and you could win a shoddy, badly-made Made by Monkeys T-shirt! See how to submit an example.