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Archive: Computers
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July 26, 2007
Controling High-Current Devices Via Microcontrollers
The latest piece on uC Hobby explains how-to use low-amperage microcontroller signals to control high-current devices. Among other things, it explains how to use transistors to get from the logic of a MCU to the power needs of a motor.
Posted by Gareth Branwyn |
Jul 26, 2007 01:07 PM
Computers, Electronics, Robotics |
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July 22, 2007
Sharing lists of podcasts for the iPhone, iPod, iTunes... OPML, .pcasts and more...
Here's a quickie how-to on using and sharing "lists" of podcast subscriptions with iTunes - if you like science and news programs you might like this - Link.
Posted by Phillip Torrone |
Jul 22, 2007 01:06 AM
Cellphones, Computers, Gadgets, Podcasting, iPod |
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July 20, 2007
Run Keynote with a Wiimote
Jason has a great how-to on using a Wii remote to control Mac OS X (Keynote) -
A couple people wrote in today in response to my post about WiiRemote, the Windows Wiimote input device driver. More specifically, I've been reminded that I completely left the similarly capable DarwiinRemote for OS X out of the discussion. In all fairness, there was a driver roundup back in March that mentioned it, but what the heck - it's a cool app and deserves a little more attention.References:So this hack goes out to all the Mac diehards who have an older machine sans Apple Remote. You folks don't need to upgrade your trusty system just to control Keynote or iTunes from a distance. Just pick up the cheap (relatively speaking) Wiimote and download DarwiinRemote.
When you start the program up, you'll need to hold down the 1 and 2 buttons on the Wiimote. This will let the device pair with the DarwiinRemote application, and you should start seeing the three lines on the graph go up and down as you move the device.At this point, you're set. You can use the arrow keys on the Wiimote just like the arrow keys on your keyboard. The home button is wired up by default to hit apple-esc, which will launch Front Row. The A button is a left click by default, etc. etc.
You can change all these settings in the preferences menu. Most of them are set up fairly logically, I thought, but one nice feature is to set the 2 button to trigger the F9 key. This will help you quickly navigate between applications with your new airmouse.This brings me to the cool part. Hit the 1 button and you can now control your mouse by tilting the Wiimote forward, back, and side to side. Your buddies with the fancy new macs and Apple Remotes can't do that, now, can they?
You can adjust the sensitivity in the preferences as well. It's a little goofy until you get the hang of it, but it gets easier with a little practice. Just call it payment for looking like a Wiimote wielding rockstar in your next otherwise booring business presentation.
- DarwiinRemote: Wiimote as a Mac input device - Link
- WiinRemote: Wiimote as a Windows input device - Link
- Control Your Applications With a Wiimote - Link
Posted by Phillip Torrone |
Jul 20, 2007 09:00 AM
Computers, DIY Projects, Gaming |
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July 19, 2007
WiinRemote: Wiimote as a Windows input device
Jason writes -
I wish I had a Windows box handy at the moment, as I'd like play around with this. Using WiinRemote, you can have the Wii Remote control your PCs mouse. Tilting causes the mouse to move up, down, left, and right. In addition to a mouse click, the remote's buttons can also be assigned to various key combos.WiinRemote: Wiimote as a Windows input device - Link.This could really come in handy for presentations or classroom instruction. With a standard laptop/projector setup, this would let you run a slideshow or demo an application while being able to move about freely. On the down side, you'll have one less reason to hide behind the podium.
Posted by Phillip Torrone |
Jul 19, 2007 09:00 AM
Computers, Gaming, Online |
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July 17, 2007
Vintage computer kits
Jason writes -
Relive the glory (gory?) days of early computing with these two great sites for vintage computer kits. Briel Computers has kits for the Apple I (Replica I) and the Kim-1 (Micro Kim). And, Spare Time Gizmos has a has a kit for the Cosmac ELF (ELF 2k). These kits are great ways to learn the basics of computer architecture and data organization.
Posted by Phillip Torrone |
Jul 17, 2007 10:00 AM
Computers, DIY Projects, Electronics, Kits, Retro |
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July 16, 2007
HOW TO - Put DVDs on the iPhone - the super simple way
HandBrake is a GPL'd multi-platform, multithreaded DVD to MPEG-4 ripper/converter - it's super easy to rip the DVDs you have and put them on the new iPhone - they look great and are about 1 GB each, here's how... Link.
Posted by Phillip Torrone |
Jul 16, 2007 11:00 AM
Cellphones, Computers, DIY Projects, iPod |
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FairUse4WM, v1.3 Fix 2
![Fairuse4Wm[14]](http://blog.makezine.com/FairUse4WM%5B14%5D.jpg)
Divine Tao (Viodentia) released FairUse4WM which gets rid of the protections on the subscription music for XP (WMP 11), Vista, files bought and sent for Zune and more... - [via] Link.
Posted by Phillip Torrone |
Jul 16, 2007 09:00 AM
Computers, Music |
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Mr. T1 - Determine your bandwidth speed with Mr.T.
No more jibba jabba, determine your bandwidth speed with Mr.T. -
"Mr. T1" is a bandwidth meter detector that runs as a standalone, cross-platform (OSX, Linux, Windows) application. The project constantly checks the current speed of the connected network and if it reaches that of a standard T1 line (1.5mbit/sec) or higher then a Mr.T sound sample is triggered in the form of "I Pity The Fool" or one of Mr.T's other various sayings. The project playfully examines the metaphorical connection between fictional characters from mainstream entertainment media and the naming conventions of modern communication systems such as the Internet.Mr. T1 - Determine your bandwidth speed with Mr.T. - Link.
Posted by Phillip Torrone |
Jul 16, 2007 07:00 AM
Arts, Computers, Online |
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July 12, 2007
Mac Mini cube enclosure
Rich Willis put a Mac Mini in an abandoned Macintosh cube acrylic enclosure, nice mod. Bonus points for the laser keyboard - Link.
Posted by Phillip Torrone |
Jul 12, 2007 02:00 AM
Computers, DIY Projects |
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July 11, 2007
HOW TO - Use an Apple IIe as a terminal
Here's how to use an Apple IIe as a Linux terminal... - [via] Link or hook it up to your mac.
Posted by Phillip Torrone |
Jul 11, 2007 07:00 AM
Computers, DIY Projects |
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July 10, 2007
Typewriter keyboard
Here's a good tutorial on retro-izing a keyboard using some clever photography and sticker making... Link.
Posted by Phillip Torrone |
Jul 10, 2007 10:00 PM
Computers, DIY Projects |
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July 9, 2007
Li-ion Life Extension
Spicy Gadget Rolls has some basic tips on extending the life of Lithium-Ion (Li-ion) batteries, commonly found these days in cellphones, laptops, mobile media players, etc...
Battery Storage - If you plan on not using the Lithium battery for prolonged periods of time, then you'll want to have the charge level at 40% and place the battery in the fridge (not freezer). Storing the battery at 100% charge level applies unnecessary stress and can cause internal corrosion. On the other hand, if the charge is too low, the battery can become permanently unusable, due to battery self discharge. This is why manufacturers recommend storing your Lithium battery at 40% charge, rather than either extreme.
4 Tips to Extend Your Lithium Battery Life [Via] -Link
Posted by Gareth Branwyn |
Jul 9, 2007 11:00 PM
Cellphones, Computers, Electronics, Gadgets, Mobile |
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July 8, 2007
Barebones Arduino on a breadboard
Here is a truly barebones Arduino setup. Just the Arduino chip and a few support parts. This has to be close to the simplest and lowest cost way to play with microcontrollers. The only special parts are the resonator and the Mega168 programmed with the Arduino boot loader. Everything else you should already have as an electronics hobbyist.
Ardunio Breadboard - [Via] Link
Related:
- HOW TO - Arduino breadboard shield - $10 & 10 mins - Link
- Arduino ProtoShield assembly + use - Link
- HOW TO - Control your Mac from Arduino, the easy way - Link
- Arduino variant - Bare-Bones Board - Link
Posted by Gareth Branwyn |
Jul 8, 2007 12:18 AM
Computers, DIY Projects, Electronics, Open source hardware |
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July 5, 2007
DIY iBook server booklet
Jonas writes -
A little while back i was given an iBook with a faulty screen as in not working at all.The chaos blog 2.0 » DIY iBook server booklet - [via] Link.
Having a hard time just throwing it away i was looking for a way to put it to use though it was a fairly old 500mhz G3 ibook.
Things being as they where i thought the only thing to do was using it as a server though it would mean quite a makeover, but thus the fun.First of all we need to take the ibook apart to remove screen, Optical drive and battery. All of these aren't necessary since we are building a server, "but what about restoring of OSX, don't we need the hard-drive for that?" Actually you don't since you can do it just as well in target mode from another hard-drive. Another thing we need to keep in mind is that we really want to keep the footprint of the ibook as small as possible.
Posted by Phillip Torrone |
Jul 5, 2007 05:00 AM
Computers, DIY Projects |
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June 28, 2007
HOW TO - Make a temperature-based fan controller without a thermistor
Nick made a temperature-based computer fan controller that use a reverse-biased diode for temperature sensing -
From a design standpoint, the only complaint I have about my Shuttle small form factor desktop is the extremely fragile on-board fan controllers. All three have died over the past two years after being used to regulate the single on-board fan with respect to the system temperature. The last one gave up the ghost a few days ago as my machine suddenly shut down and a red light came on inside.μblog: engineering from the trenches » How to make a temperature-based fan controller without a thermistor - Link.Figuring that I should just go build a more substantial fan controller myself, I promptly went to the lab to look for a thermistor. Unable to find one, I settled for the next best thing: a diode.
Posted by Phillip Torrone |
Jun 28, 2007 04:00 AM
Computers, DIY Projects, Electronics |
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June 26, 2007
http://ducttapeserver
It's about time... A server completely made from duct tape, four rolls of gray Nashua duct tape, a quarter roll of translucent 3M duct tape. The fan guard is made from duct tape too... - [via] Link.
Posted by Phillip Torrone |
Jun 26, 2007 06:00 PM
Computers, Made On Earth |
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DIY USB 5.25″ front panel
Azog writes -
We probably saved about $50, but spent about four hours. I don't know if you can measure it this way, but it's a helluva lot more satisfying to hack up your own case. Off-the-shelf case modding has become so mainstream, people don't even need to pick up a real tool, so there's a part of me that enjoyed seeing sparks fly while using the Dremel to make this thing fit our own vision.Silent Q » Blog Archive » DIY USB 5.25″ front panel - Link.
Posted by Phillip Torrone |
Jun 26, 2007 06:00 AM
Computers, DIY Projects |
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June 20, 2007
iTunes Sync... without an iPod
If you have an music player that's not an iPod but want to use iTunes to manage the music you can use iTunes Sync from Binary Fortress Software... It also should work with removable storable like SD, etc... - [via] Link.
Posted by Phillip Torrone |
Jun 20, 2007 11:00 AM
Computers, iPod |
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Extracting a 3D Model from drawings
Perspective techniques to extract a 3D model from a painting, nice! -
Constructing 3D models of buildings is all about extracting the geometry from images using photogrammetric techniques. As such, although it goes against basic geometric principles it also lends itself to historic reconstruction via referenced hand drawn images.Digital Urban: Extracting a 3D Model From Drawings - SketchUp - [via] Link.Over eight years ago we used the now sadly demised software CANOMA to create a view of London in 1616 - as the YouTube movie illustrates. CANOMA excelled at such scenes as it required only a single image to define the 3D space compared with many photogrammetric packages which require matching views and overlapping construction points.
Posted by Phillip Torrone |
Jun 20, 2007 09:00 AM
Computers, News from the Future |
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June 15, 2007
1985 computer animation on an Apple IIe
Charile writes -
Phil, you should check out this cool Apple II stop motion rig one of my commenters made in the 80's, I think it's right up your alley. He had the computer control the camera and a spinning wheel of color filters. The computer rendered one frame in monochrome for each color of each frame.Cinemagic magazine from 1985 - Link.
Posted by Phillip Torrone |
Jun 15, 2007 06:00 AM
Computers, Retro |
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| Comments (3)
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