March 8, 2010

Roll your own super cheap USB oscilloscope

diyWhile the world of tech is clearly digital, it interfaces with a decidedly analog world. If you are servicing or building anything analog like an amplifier, and oscilloscope is indispensable. You can buy a terrific new ’scope for around $400 or scour swap meets and Ebay for an oldie that probably needs work for a bit less. A third alternative is to use a PC and a few of cheap parts to do the same job.

At the center, an ATtiny45 microcontroller uses its ADC capabilities for the two traces and also handles the USB connectivity. The internal oscillator is used and trimmed up for accuracy by referencing the USB clock. On the PC side of things, a program written in C# displays the data coming over the serial bus. Quick, small, and useful; a schematic, board layout, firmware, and PC software sources are all available for download. (Hack a Day)

Filed under DIY, hardware, tools by admin

Permalink Print 1 Comment

March 7, 2010

Outsource small tasks on the cheap

burning-moneyMost IT workers hold a dim view of outsourcing. The same Internet that has made knowledge work possible from any place on the planet and enables outsourcing for the corporate suits is also making it available to the rest of us. A world exchange of skills is rapidly developing on the Micro scale.

Do you have some small tasks outside of you skill set? How about paying someone else to do them a few dollars to do them for you? In addition more established marketplaces like Elance and Craigs List, you can hire out micro tasks on marketplaces like Fiverr and Mechanical Turk.

Filed under tech tips by admin

Permalink Print Comment

1u rack mount case only $17.99!

While this case is intended for a server, if you think a bit outside of the box, you’ll find it’s a perfect enclosure for many other projects. At $17.99 the price is unbeatable!

Eagle Tech ET-RMAL1012-BK Rack Mount 1U Aluminum Server Chassis (Black) Eagle Tech ET-RMAL1012-BK Rack Mount 1U Aluminum Server Chassis (Black)

This space-saving Eagle Tech ET-RMAL1012-BK Rack Mount 1U Server Chassis is compatible with up to 12 x 13-inch ATX motherboards making it ideal for applications such as an Internet Server, Firewall/VPN, Military applications, and more! Five built-in cooling fans keep this 1U Server Chassis nice and cool! Order your Eagle Tech ET-RMAL1012-BK Rack Mount 1U Server Chassis today!


Geeks is a Tightwad Technica affiliate. Using our links to purchase from Geeks helps support Tightwad Technica.

Filed under Found Deal by admin

Permalink Print Comment

March 3, 2010

Free catalog software organizes your video collection

free-beerSure, walled garden packages like iTunes can organize the media you buy from  the fruit farm, but what about programs from other sources like Amazon or physical DVDs and maybe even tapes? We’ve got a free fix, and it doesn’t even have a hitchhiking  player that acts like a worm hijacking all media on you computer.Ant movie catalog will even find catalog data on your movies for you.

You can download Ant here.

Features

  • User interface translated in about thirty languages: English (default), Bielorussian, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hebrew, Hungarian, Italian, Korean, Latvian, Lithuanian, Macedonian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Turkish
  • Can store catalog in two file format: its own binary format or XML
  • Import information from Internet (using scripts); by default it includes scripts for IMDB (US), DVDFR (FR), Allociné (FR), Culturalia (ES), and lots of others
  • User-customizable links to do a search on movie websites
  • Import information from various media files (audio and video codec, bitrates, resolution, framerate, size, etc.)
  • Scripting technology, using Object Pascal language, allowing to modify catalog: Find and replace, moving field values, …
  • Printing, using customizable templates
  • Export to other formats: HTML (based on a template that you can modify or create yourself), SQL commands (to re-import data in a DBMS such as MySQL), CSV (text files, can be used as tables with Microsoft Excel for example), Origons.com
  • Import from other formats: CSV (Microsoft Excel can create such files, but a plain text file can be used too), Divx Manager, BaseDVDivx, Origons.com
  • Can store pictures inside catalog or link to external files (recommended for large pictures)
  • Supports PNG, JPEG and GIF
  • Loans management
  • Statistics with chart and pies
  • Can display the list as a tree, where movies are grouped by a specified field
  • This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Filed under Open Source by admin

Permalink Print Comment

March 1, 2010

$10 system on a chip = cheap tablets and netbooks

tabletGet ready for more affordable, more portable computing. While Intel and AMD talk systems on a chip, Freescale is delivering. Several flavors of Linux as well as Andriod are already running on the core ARM processor, so complete working sytems with apps should be available in months rather than years.

The I.MX508 is intended for next generation use on e-reader panels and supports panel resolutions up to 2048×1536 pixels at 106Hz. The ARM Cortex A8 engine has a clock speed of 800MHz to enable it to cope with complex image manipulations and colour processing. Freescale believes that it has enough power under the hood to handle features like advanced touch technology.

Bernd Lienhard, vice president and general manager of Freescale’s multimedia applications division said, “Working closely with E Ink and our customers, we are able to offer an integrated silicon solution to facilitate lower e-reader retail prices and enable the next phase of growth in the ebook market.” (The Inquirer)

Filed under CPU's, Cutting Edge by admin

Permalink Print Comment

February 26, 2010

Vintage video game clock

MONOCHRON - open source retro clock from adafruit industries on Vimeo.

How about a little vintage video volley instead of a swinging pendulum on a DIY clock?

Filed under DIY, Open Source by admin

Permalink Print Comment

February 21, 2010

DIY spot welder on the cheap

The ability to spot weld metal will surely extend your range as a devoted DIY’er. Whether it’s reparing sheet metal parts or modifying a case,  spot welds can take your project to the next level.

If you can salvage a working transformer from a dead microwave oven, you’ve got the most expensive component for this project. Read the rest on Hack a Day.

Filed under DIY, tech tips by admin

Permalink Print Comment

February 19, 2010

Unbuntu adds support for ARM processors

other-tuxkey_1280x1024Unbuntu has given another OS option to manufacturers of the coming wave of cheap ARM based netbooks. The company has relesed an ARM version of its popular Linux distribution. That makes the most popular desktop Linux the likely champ in the ARM netbook OS sweepstakes.

An ARM-based netbook running Ubuntu could be in your future with the newest version of  Ubuntu Netbook Edition. Much like Windows, the popular Linux distro did not previously have support for ARM processors. This meant you’d only see Ubuntu on Atom-based netbooks, a category dominated by Windows. With the anticipated flood of ARM packing “smartbooks” expected to materialize, the devs got to work rewriting Ubuntu. (Maximum PC)

Filed under Netbooks by admin

Permalink Print Comment

February 17, 2010

A New Future in Cinema Production

Okto Going High In HD :-) from FPV-Leif on Vimeo.

What took that amazing video is this –

Its a hexacopter. (Yeah, 2 more than a quadcopter.) On it is mounted a HD streaming camera that feeds its image to a base station. The camera is also used for flight control as well. The parts for this device are off the shelf and yes you could build one if you are inclined.

So what’s the great shucks? Cost. Generally if a director wanted a high shot s/he would hire a pilot, cameraman and chopper for such a thing. Refine what this Hexacopter can do and the chopper setup is gone. A chopper is a probably $3-400/hr to run. Add the crew and equipment and you might be on the light side of $1k/hr.

A guy shows up with a hexacopter, sets up, makes the runs. Passes the video to the director. Anything a miss they just run it again. Quicker, cheaper, less hazard. The operator might charge for a days use what the chopper guy charged for a single hour.

More here for those interested. Sorry only available in German and French. Also check out the other videos on the site as well.

Filed under Cutting Edge, DIY, new technology by Dr. Dog

Permalink Print Comment

Case Number 76634

apple_coreOr why we believe that Apple reliability and consequent pricing is out of whack. –

Apple has extended the warranty on certain MacBooks from 2006 and 2007 whose hard drive failed, while offering free replacements for defective drives.

Look out your window and you might observe porcine aerobatics - and that red-tailed gent donning the toasty overcoat might well be Lucifer.

Of course, in a support note announcing the “Repair Extension Program,” Cupertino was careful not to concede mass failures. “Apple has determined that a very small percentage of hard drives that were used in MacBook systems, sold between approximately May 2006 and December 2007,” the note reads, “may fail under certain conditions.”

Again another case of reliability being an issue. Of course the subcomponent is from a VAR, but that does not let Apple off the hook. How many MacBook owners have done the Customer Care Tango only to be denied?

Linky

Filed under Apple by Dr. Dog

Permalink Print Comment