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E-flite S.E.5a Slow Flyer 250 ARF

Hacks & Mods, R/C Models
April 26, 2008 4 Comments
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I've wanted to get back into R/C Planes for a while now and since I live across from a park I wanted to try out the new electric planes. I went to my local hobby shop (not many around anymore) and found a E-flite S.E.5a Slow Flyer 250 ARF. The kit is pretty much ready to go, you just need to glue a few things together and put your electronics in. I already have a Futaba 9 channel controller (T9CAP) so it wasn't a big investment to get started again. I'm amazed at how advanced electronic planes have become! I'm used to the Nitro .40+ planes but these electrics are really nice... the motors, ESC, batteries, servos and receivers are tiny! The whole plane only weighs 8oz... I will be flying crashing it later today.

One thing I did find out getting into electrics is that all good Li-Poly battery chargers require a 12v DC power source and most of these power supplies, like the Hobbico, cost over $80 and that's not including the charger... so in my next post I will show you how to make a 12v, 5A source for under $25.

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HD DVD Hacked?

Hacks & Mods
December 27, 2006 2 Comments
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Someone on the AVS Forum posted a link to this video on YouTube. It was was uploaded on Dec 18th by Muslix64, a 26yr old Canadian. Apparently, he has broken found away around the AACS copy protection of HD DVD.

He writes:
"I was not aware of anyone having done that, so I did.
Have a look.
The AACS copy protection system is realy Unbreakable!
The program is a simple implementation of the aacs crypto protocol freely available on the net.
No reverse engineering!
Stay tuned for source code soon!
Merry Christmas everyone!

Source now avaiable at:
http://rapidshare.com/files/8318838/BackupHDDVD.zip.html
"AACS is unbreakable" is the title of the video and the total running time is 2:16. The author claims that it's not about the software (which is written in Java), but it's all about a config file -- TKDB.cfg. It looks like there is some kind of hash keys for each crackable HD DVD title. What do you guys think... is this video real or fake? I just downloaded the source... I'll see if it works.

Update: It looks like it should work... the hard part is getting the "Title Keys".

The author writes:
-How do you extract the "Title keys"?

I won't explain it in detail. Read the AACS doc first. You will understand. The title keys are located on the disk in encrypted form, but for a content to be played, it has to be decrypted! So where is the decrypted version of the title key? Think about it...

Update 2:
Chris Lanier says, "No, AACS Was Not Cracked".

YouTube - "AACS is unbreakable"
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HOW TO: Recovering Data From HD Failure — Just Freeze The Drive!

Hacks & Mods
December 23, 2006 10 Comments
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As I was about to pack up and leave work for the Christmas vacation, I undocked my laptop and placed it into my bag. I forgot to send an email so I pulled it back out and redocked it. The computer started up fine, loaded Windows and then froze. I rebooted and that's when I saw "1781 Disk 1 Failure" on the screen, right after BIOS post. My stomach sank, I knew it wasn't good.

Since everyone was already gone for the weekend, I packed up and went off to buy some last minute Christmas gifts. When I got home, I tried powering it up again and it displayed the same error message. I googled, "HD Failure" and the first link was this. It recommended removing the hard drive and placing it in the freezer anywhere from 2-12 hours. I placed the drive in a ziploc bag and put it in the freezer (see above photo). After about 8 hours, I put it back in and to my amazement disbelief, the machine booted up without any issues. I haven't tried rebooting yet, I'm still waiting for all my data to copy.

I was very skeptical, but this actually works!
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Zune Expansion Port Protocol?

Hacks & Mods
December 10, 2006 12 Comments
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Has Microsoft or anybody released the Zune Expansion Port pinout/protocol? I'm particularly interested in the control and metadata (title/author) display protocol. I'd like to build an interface much like the Russound iBridge so I can control and display assets from the Zune to the whole house Russound CAV6.6 system. If anyone has any information please send it my way...
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HOW TO: Wire An Ethernet And Phone Jack Using A Single Cat5e Cable

DIY, Electronics, Hacks & Mods, Home Automation, Home Improvement, Home Theater
June 22, 2005 129 Comments
It's all to often I hear about people buying a new home that is "wired for the future"... meaning it only has a single Cat5 cable to each room. I don't know why builders cut corners with this since cabling is cheap and you can pull two at a time. When I was building my house I pulled at the very least, two RG-6 Quadshield, two CAT5e, and two Fiber lines all wrapped up in a PVC jacket. In most rooms I pulled two and in special rooms I pulled four runs to the wiring closet. I also ran conduit in areas I knew I would need future connections or additional cabling... it's easy to do it when the walls are open. This post is for home owners out there that either forgot to pull more Cat5e cabling and for the home owners that had a builder that wasn't tech savy. This "HOW TO" will show you how you can take a single Cat5e cable and turn it into both an ethernet jack capable of 10/100Mbps and a two line phone jack. You will need the following tools: (All are available at your local Home Depot -- I like to use the Ideal Brand)
- Punch Tool - Cat5 wire perfect stripper - Cat5e jack (Leviton or equiv.) - Voice Jack (4 or 6 conductor) NOTE: If you need Gigabit speeds, then you will need to pull Cat5e/Cat6 cable and follow all the standard wire pulling guidelines. We are going to derate the cabling, I have achieved 100Mbps speeds in this setup. In my wiring closet I have three Linksys switches. Two are 10/100Mbps 16 port switches and a single 8 port Gigabit (1000Mbps) switch. The Gigabit lines are terminated with RJ45 connectors directly to the switch. The 10/100Mbps lines are terminated to a Leviton Cat5 termination module (also found at Home Depot). Then a standard Cat5e cable bridges the connection to the switch. Since I'm using a Panasonic phone system I only need two pairs... the other two pairs were going to waste... so I decided to hook them up as another ethernet jack. cat5e.jpg Lets start with the Cat5e jack. I followed the T-568A standard, which is supposed to be the standard for new installations. The jacks have both the "A" and "B" color codes on them to make it easier to wire. Strip back about 3" of the Cat5e cable, we are going to be using the Orange and Green for the ethernet jack. The colors will match up perfectly to the T-568A colors on the side... Green to Green, White/Green to White Green, Orange to Orange, and White-Orange to White Orange. Punch them with the Punchdown Tool and you're done. This jack will give you 10/100Mbps... you might want to label it differently or color code it if you also have a 1000Mbps jack. tel_jack.jpg For the telephone, we will use the blue and brown pairs. Wire up the Blue to Blue, White-Blue to White-Blue and Brown to Orange, White-Brown to White-Orange. Punch those down with the punchdown tool and you have a two-line jack/4 conductor jack. closeup_cat5.jpgIn the final step, you will need to terminate all the lines on the Leviton Cat5 module. If you look at the photo closely, you will notice that the ethernet jacks are terminated Orange to Blue, White-Orange to White-Blue and Green to Green, White-Green to White-Green. The telephone jacks are terminated Blue to Blue, White-Blue to White-Blue and Brown to Orange, White-Brown to White-Orange. Once you get everything punched down, it's best to test with a real line tester device... if you don't have one... plug in a telephone in each telephone jack and a computer in the ethernet jacks. If they work you're done! If not... well, you've got more work, checking all the lines.
Here are what my jacks and plates look like. I'm not a big fan of screw'd plates, so I'm using Leviton's screwless wall-plates throughout. They are a snap to install... Enjoy!

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DIY: Outdoor Wireless Access Point/Signal Repeater

DIY, Electronics, Hacks & Mods
May 1, 2005 125 Comments

outdoor-wifi.jpgIn my previous post, I went over how I created a weatherproof Wi-Fi camera rig. I decided to write a separate entry about how I got Wi-Fi signal to the camera during the construction process of my new home.

This project was installed about a year and a half ago and has been functioning since. There have been times I needed to reboot the repeater throughout the year, so it’s not like you can install it forget about it (unless you buy commercial products, not a Linksys). You also have to keep an eye out for growing shrubs and trees, since that will limit your signal over time.

First up, you’re going to have to have access to an internet connection (DSL/Cable). I had the luxury of having my parents near by, so I didn’t have to deal with any neighbors trying to secure an internet connection during construction (check your area and see if anyone has their wireless wide open… you might just want to repeat that signal).

I hope this post gives you some ideas as how to easily setup an access point outside your home. Maybe you have a park across the way that you’d love to work at, but can’t because you need to be connected… this project can surely make it possible.

Lets begin.

The Parts List:
– A HyperLink 8db Compact Omnidirectional 2.4ghz Antenna or a HyperLink 8db Patch Antenna
UPDATED: Use two Ubiquiti NanoStation loco M5,  Ubiquiti PicoStation M2HP 2.4GHz 802.11g/n High Power Access Point or EnGenius Long Range 2.4GHz Wireless Bridge/Access Points as the Linksys WAP11‘s 802.11b Access Point is no longer available.  The Ubiquiti and EnGenius is waterproof however you may still want to house it in a box for other components you may have in there or you can use any other WiFi router/bridge models that support repeater mode (or flash with DD-WRT).
– 1 – 10″x10″x4″ PVC enclosure from Home Depot or Amazon.com
– Misc PVC parts for Antenna Mast attachment, PVC Glues, Silicon, etc (found at Home Depot)
Automotive Grade double-sided foam tape to attach parts in box
– A few power tools… drill, screw, etc.

If doing Power-Over-Ethernet (not repeater mode), you’ll also need:
– Cat5e Connection Box
Digital Multi Meter (DMM) or Volt Meter (to check cable resistance)
– Cat5e cable (outdoor direct burial type)
– New power supply to accommodate length of cat5e cable (or use PoE).

You’ll need to find an enclosure that will fit your access point. outdoor-wifi-2.jpgMost of the time, the case is bigger than the actual electronics inside… so if you are having trouble finding a case, you can always dismantle the access point/repeater, however, this will void your warranty. For my WAP11, I took some measurements and headed to my local Home Depot. I found they had a 10″x10″x4″ PVC box that looked perfect for this project.


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I wanted the status LEDs to show thru the bottom of the enclosure so I had to remove the front of the WAP11. The photos above show how I did this. I took the front part and stacked it on the back of the WAP11. This gave me some support and the height was perfectly in the middle. I marked and drilled the 3 LED holes. I filled them up with clear silicon so the LED lights could still shine thru. I also attached some double-sided foam tape so I could secure it in the enclosure.

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In the photo on the right, you can see the complete naked enclosure. My first attempt was to have a full outdoor Access Point. To do this, you need a wired ethernet connection and power. So I took the PoE (Power over Ethernet) route. That worked for about a year, but, because I didn’t used outdoor grade cat5e cable when I buried it, one day it suddenly stopped working. I think a rat ate it or it just corroded. If you are planning on doing PoE, then you’ll want to follow this guide and BE SURE TO USE outdoor rated Cat5e cable!! If you don’t want to deal with volt meters and ohm’s law, the check out Hyperlink’s PoE solution.

The 8db compact Hyperlink omnidirectional antenna I used has a mast attachment, so I bought a 2″ PVC pipe and cap and attached the antenna to that. I only attached one external antenna, so I’m not doing a true diversity system like the Linksys originally had. You can turn off the other antenna or keep it on… your tests may yield different results. Omnidirectional is great if you want to spread the 8db signal over 360 degrees. Sometimes you want to use a directional antenna. Let’s say the park you want to check email at is right across the street, and the the picnic table 30 degrees to the right. You could use a patch antenna and blanket just that area with a full 8db. So instead of an 8db (or whatever) omnidirectional antenna, which spreads that 8db over 360 degrees, you can give a 30 degree spread more of the 8db signal.

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Next, I attached all the cables to the WAP11 and powered it up. Again, if you are setting your system up as just a repeater, then all you need is power. If you are setting it up as an outdoor access point, then you’ll need to provide power and ethernet. Having done both, I like the repeater method. It’s easier than running a cable… but you spend more because you need another WAP11 to act as the main access point.After I mounted everything inside, I found an area I thought would work the best and did all the network setups. Then I ran some tests. Depending on tree coverage and any structures, there is pretty good coverage… it can only get better with more access points and/or bigger antennas. Flat, clear areas do better than hilly, treed areas (trees suck up the signal and metal structures reflect) For now, the coverage is pretty much want I need… but I’m thinking about putting a Wi-Fi Amplifier on the repeaters. That should really light up the block… and maybe even a visit from the FCC!Below is an “artists rendering” of my signal spread. My terrain is a bit hilly, so I don’t get the same coverage as if I were on flat lands.

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Total cost? Under $500.

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