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 No.602[Reply]

Hey lain, Do you use usb otg? I'm currently looking into building myself a cybersuit with the fallowing spec:

1 x Android phone (root + kernel patch)
1 x usb hub
2 x Wifi antenna (monitoring and client/attack/master)
1 x SDR radio (cause)
+ Batteries
+ anything usb

The Android phone will be attached to my wrist while the rest of the components will be attached to a vest or backpack.

(Basicly I want a PipBoy)

The problem is both my samsung galaxy (Ace II and Tab 3) I've managed to find don't support USB host with OTG plugs and I can't manage to find any decently priced android phone that support USB OTG, can be easily rooted, can be patched for wifi monitor mode.

Any of you had better luck?
6 posts omitted. Click reply to view.
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 No.618

>>613

Still a WIP for now but it's suprisingly affordable

- Android phone with OTG 100$-600$
- Software Defined Radio (SDR) 10$-100$
- wifi dongle 5$ - 20$
- USB hub with AC 5$ - 15$
- AC batterie pack 15$ - 30$

You could probably replace the phone with a Rasperry Pi or a router with usb (<3 TL-MR3020) runing openwrt or something. Any small computer will do but the phone as the advantage of providing it's own interface.

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 No.1025

File: 1440082019726.png (7.83 MB, 3264x2448, rasp.png) ImgOps iqdb

Not finished yet.

The idea is a raspberry pi 2 with Raspbian and all my wireless cracking tools(wifite, reaver, aircrack-ng)

I'm using a power-bank as battery, and two wireless cards, one for attack an the other is a hotspot (hostapd) to connect my phone.

I can control my raspberry from my android phone via mosh or ssh and all the other stuff is in a bag or my pocket

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 No.1041

Sorry I cannot help you, but that sounds interesting, you need to keep us updated.

I'd like to see/hear your plans for this.

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 No.1042

My current phone uses a USB OTG host option, HTC Desire 510, easy to root and mod kernel (they give you the kernel files) , I got mine for $90 off of amazon.

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 No.1087

Any of you have updates on these projects? I am still quite interested.


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 No.730[Reply]

How feasible it is? How much overall cost to do it?
The idea is something for emergency situation, using a shipping container and then do a anechoic chamber/faraday cage around it.
I'm highly sensitive to loud sounds, so I was thinking in diy this in the future.
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 No.890

I really want to be a part of an anarchist bunker community. so tips would be much apreciated

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 No.898

>>885
No eggs for şound but the steel shipping container is the Faraday cage, you won't be getting mobile reception in there... And will probably easy hold 1kw of emf.

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 No.1048

>>730
hope you are aware that shipping containers will NOT hold up underground without some serious reinforcement. They are designed to be stacked, with all the weight going to the corners; not pressure from all sides that you'd get underground.

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 No.1059

>>1048
That can be fixed relatively easily with lengths of scrap steel and an oxy acetylene torch / MIG torch.

You could also reinforce it prior then fill the surrounding void in cement then remove the support.

Like they say, n log n ways to skin a cat.

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 No.1416

>>1048
always curious how people just know stuff like this, like I mean yeah sure you could figure it out I guess but you arent gonna see someone posting about a shipping crate underground and instantly go "oh yeah! that wont work".


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 No.1037[Reply]

Got a problem, and somebody on 4chan said lain /diy would be better equipped to help me with it than /g.

I've got an Alienware M11x R2 and I just love this laptop. It's the best laptop I've ever owned. I'm also really into Free Software and I've been looking into the possibility of porting Coreboot(and eventually Libreboot) to it, as it's hardware is very similar to the already supported Lenovo T400.

But I have a problem, which is that the text indicating the model of the Embedded Controller is partially rubbed off and it's ambiguous which embedded controller it uses(ENE technology, starts with KB). I've looked up as many images of it that already exist as I can, but I've not been able to get any further from those. Can somebody upload some pictures of the motherboard with readable text on as many chips as possible? You would be helping me immensely.
2 posts omitted. Click reply to view.
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 No.1043

>>1040
where did you find it? I bet you could try and buy a broken board off eBay or craigslist.

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 No.1044

Here's one of the sheets I found. Once I got used to figuring out how to correlate the OEM terms with the ODM terms it was easy.
http://www.s-manuals.com/pdf/motherboard/compal/compal_la-5812p_r1.0_schematics.pdf

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 No.1045

That's not the R2. That's the R3 I think. This is one version of the R2. http://www.smdcode.com/media/service-manuals/laptops/toshiba/compal-la-5821p-r1-schematics.pdf

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 No.1051

>tfw outsiders recommended lainchan
+1 notoriety

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 No.1058

Oh god if anon get this ported this laptop will be so fuarrrking pricey. Not that I care though I rather have more libreboot-tops than none at all. god speed friend.


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 No.826[Reply]

What should I do with my old laptops? I have three laptops just laying around and I don't want to throw away my loved ones.
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 No.937

>>887
>seedbox
Install linux. Antergos is my favorite distro. Easy as balls to install and lets you set full disk encryption. Deluge is my favorite torrent program because plugins and webUI interface. qbittorent is better on cpu usage though idk if it has webui. Both support linux but you will likely have to build it for your distro.

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 No.1052

>>937
Why not rtorrent?

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 No.1053

>>1052
The console version of deluge 2.x (I think it's the dev version) is better than rtorrent in every aspect, you should try it.

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 No.1054

>>1053
>is better than rtorrent in every aspect

Go on, I am listening. I'm not >>1052 How is it better? Could you list reasons or link an article?

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 No.1057

>>1054
The ncurses interface (the one they added in (I think) version 2.0 to replace the command prompt it used to have) is more configurable and prettier IMO, the controls are more intuitive, it works with a daemon so it has a TUI, a GUI and (IIRC) a web interface, has a config menu so you don't have to edit the config file and makes it easier to configure things like post-download actions, has a file search thing that works like ranger so you don't have to type the path to the .torrent file, has a sequential download feature (download the files from the first to the last instead of however else) that I find really useful, doesn't have a lot of forks that extend functionality because it can be extended with plugins, and seems to be under more active development.

The only thing I don't like about it is that it has a green background that impedes bg transparency from the terminal emulator and looks a bit gross. And it doesn't handle small terminal sizes, but that didn't cause me any trouble.

Anyway, it's been a long time since I last used rtorrent so I might be wrong somewhere but if you like rtorrent, deluge-console is at least worth a try.


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 No.580[Reply]

Hey, does anyone have any resources on building a motherboard? A suuuper basic one from like the 80's or something. Just something that I could mess around with.
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 No.581

>>580
strictly x86?
not that i have anything of use but just opening up ideas?

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 No.582

>>581
It could be any arch. I just remember hearing and reading about how guys used to build motherboards in their garages during the 70's and 80's. I don't plan on using it for anything really, just building one would be cool.

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 No.589

>>582
Depends on how far you want to go and what you intend on using for the components. You can build a small ARM A series motherboard, or use one of those Zilog chips to do a computer that way. This site has someone who did their own computer http://quinndunki.com/blondihacks/?p=680 There's tons of possibilities out there though. You can make your own expansions cards too, but then you have to decide between parallel and serial communication (personally serial is better). If I had to break it down it'd be like this: you need a power section, a socket for your CPU, RAM slots (if you go with an ARM A series design), and some medium of storage (whether this is SATA, floppy, EEPROM etc.) to get your programs in. You can integrate the display driver into the motherboard if you want to, along with networking or just stick them on expansion cards. I think you could start at this by making development boards for AVR/PIC, then an ARM M series one to get a feel for things, then go all out on what you want.

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 No.1055

How about mycpu?http://www.mycpu.eu/


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 No.1016[Reply]

I have a lot of these, do you think I can make something schway out of them?
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 No.1017

hmm. the only thing i can think of is that deodorants have a tendency to be inflammable. remote controlled flame thrower maybe? strap to drones for the lulz? i dunno man

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 No.1018

A nail and a door would make a very effective practical joke.

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 No.1022

>>1018
Not OP, but I just wanted to thank you. I had never even thought of that possibility before!


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 No.899[Reply]

sup /diy/ngbats

I want to build a camera array that gives 360 degree FOV and is capable of being streamed by something in the same size class as a raspberry pi.

Can anyone give me some advice?

I figure the cheapest way to do this would be to find a decently powerful SOC and somehow hook up a bunch of cheap cellphone cameras (idk how to source small cameras for embedded electronics)

I don't know jack soykaf about electronics, or even where to source them, let alone the proper names for what I' trying to describe

any advice would be appreciated
2 posts omitted. Click reply to view.
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 No.903

Have a look at how the Pano Pro works. You use one camera with a curved (parabolic?) mirror to get a single image which you then unwrap into a 360-degree panorama.

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 No.904

>>903
Probably the best way.

>>901
Probably a cheaper way, especially if you can't build the controls for a mirror like that. Although, with the right software and two 555s and a servo, you could probably control the mirror fine- that's not a bad electronics intro- do you have any technical background at all?

If you want to stream data from webcams, my advice is to not use a raspi, its USB stack is crap (as in, it has documented bugs but the chip manufacturer gives 0.0 soykafs). You could probably use something comparable, though (cubieboard, banana pi- not actually sure raspi 2 has any bugs), many go ahead and compress data onboard so you don't have top sweat bandwidth- 480 Mb/s on a single port is fine.

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 No.906

>>899
you can find cheap camera modules and other parts on aliexpress. i have no idea though how to stitch the individual video streams together.

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 No.947

Either webcams or full-blown FPGA + some standard camera modules.
There is also a variant with 1-2 highres cams and fisheye lens (and nonlinear postprocessing).
FPGA variant is the best because it allows syncronization. Webcams won't be in sync.
Webcam approach is a couple of orders of magnitude cheaper and easier.

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 No.1005

File: 1439740070670.png (17.35 KB, 640x400, Untitled.png) ImgOps iqdb

This will get you 360 degrees in 1 axis. You could also try sticking a clear marble in front of the lens.


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 No.659[Reply]

I'll buy a raspberry pi and make a file server + electricity manager with it.
Three SATA and three IDE drives would be hooked to it, to be accessed through SSH over a LAN.
The Pi's GPIO pins would use relays [1] to control a home-made switchboard where I'd plug my other energy-consuming devices (laptop, amp, etc) to provide current to the ones I'm using at a given time and switch the rest off the grid.

My issues:
I haven't used a raspPi or GPIO before so I'm not sure they can do what I want them to.
I think relays are the way to go, but I'm not certain.
This layout would require three IDE to USB carries, and they are a bit expensive and hard to find.
Letting the thing have one wall plug instead of two would be good.
I still haven't thougt about other parts like casing, a display, maybe sound isolation for the HDDs, etc.

[1] https://en.wikipedia.org/wiki/Relay
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 No.681

>>680
>Does powering the device from the Pi have something to do with transfer speed?
No.
>Can you still use the other USB ports for other things?
Maybe? The ACTUAL power requirements still confuse the soykaf out of me.
https://www.raspberrypi.org/help/faqs/#powerReqs
https://www.raspberrypi.org/documentation/hardware/raspberrypi/usb/README.md#powerlimits
https://www.raspberrypi.org/documentation/hardware/raspberrypi/power/README.md

The documentation links haven't been updated since last year, so they might not represent the RPi 2. And it might not even be correct according to http://hackaday.com/2015/02/02/introducing-the-raspberry-pi-2/
And now I just learned why my HDD wouldn't work with my original 1A power supply. It would fail at spinning up the drive even though the spec says 500mA. Good to know.
http://superuser.com/questions/309088/power-related-limitations-of-a-usb-hard-drive-enclosure

At the very least, I have also had a keyboard and HDMI plugged in with this setup.

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 No.682

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>>681
You can get a reader to measure your devices' real amperage and how well your cables support it. The values are usually worst than advertised.

I have yet to decide between USB-RPi and SATA-BPi, the latter is faster but less documented and the hardware is not open yet so I think I'd go for the RPi.
http://www.htpcguides.com/raspberry-pi-vs-pi-2-vs-banana-pi-pro-benchmarks/

Thanks for the links

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 No.973

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>>659
I'm interested in making a machine to manage electricity and appliances in my house too OP, file-server would be separate in my case though.

If you figure out a way to adequately manage appliances, like relays, please post.

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 No.974

File: 1439378399460.png (17.79 KB, 640x400, wiz.png) ImgOps iqdb

>>973
I stopped looking into it, but if you look around you'll find videos telling you how to manage relays using rPis or Arduinos.
Right now I'm using a diy thing I made out of electrical materials I had around, ditched the SSH part.
It consists of (from the wall) a meter of cable, then a box of four wall outlets (or sockets) (you can buy a plastic box to use them external to the wall), then two or three meters of cable and a second box that consists of two more outlets and a bunch of switches that can cut the energy to the four other sockets.

I sometimes have the paranormal experience of turning on or off the amp I use for music and causing my flash drives to go read-only until I change the mount point and my keyboard layout go back to default, on my computer that's also connected to this godforgotten device I made.
Has /diy/ gone too far?

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 No.976

File: 1439387710823.jpg (1.18 MB, 4380x2968, wpQBJ3E.jpg) ImgOps Exif iqdb

>I think relays are the way to go, but I'm not certain.

You'd better be real, real certain.
>murca
120 volts at 60 cycles is lethal because the power company will happily deliver an infinite number of amps to your tender organs.

go to your library, pick up a book on basic AC wiring. buy a voltmeter.

invest in optic relays, quality enclosures and a firm understanding of how to terminate single-phase grounded mains circuits. optic relays isolate your pi but require relay power separate from the pi.

your switchboard needs to include a breaker circuit, lightning arrestor/surge protector/power conditioning if youre hooking anything but a fridge or a lightbulb to it.

TL;DR: ISHYGDDT.

a BETTER idea would be to buy relays with DC triggers that interface with EXISTING mains wiring. EG a plug that includes a trigger point for a DC +5 voltage. IP addressable surge protectors exist that can power on/off things too.


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 No.720[Reply]

while doing fan maintenance to my laptop fan I had the brilliant idea to wash the keyboard. Sadly it didn't work like I anticipated

Did you ever messed up badly lainanons?
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 No.850

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>>847
>some keys just stopped working. I thought that it was a model like in the first pic, but instead it was like the other pic. So when I washed it some water entered inside and short circuited it. I managed to take it out in the end, but some keys just refuse to work.

I just bought a new one in the end

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 No.851

i had this old usb hub with fans attached that didnt work properly

i attached a power unit i had lying around

it fried my 1500$ laptop

so what you did harmless compared to that

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 No.852

>>720
First time I tried to partion my hdd for winXP/Debian I ended up over writing the master boot loader and not installing grub. Couldn't figure out how to fix it and had to wipe/reinstall everything.

Learned from it though.

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 No.856

>>852
That's how I learnt most of my way around linux when I first started using it; by breaking everything. Often in an attempt to fix something. Did a lot of reinstalling and reconfiguring. The repetition helped a lot in remembering.

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 No.874

>>856
Yeah this is basically my relationship with Arch Linux. I'm currently running either CentOS or Fedora on all my computers, but every couple of months I'll be overcome with an abundance of free time and an urge to install Arch Linux. I'll set up everything perfectly and be going good for about a month, and then render the system unbootable trying to fix some small niggly thing (I think the last time it was downgrading Xorg so I could install the proprietary AMD drivers to get rid of ghosting when moving around translucent windows in openbox). You'd think I'd put some revision control system in place, but no.

As to stupid mistakes I've made, I remember trying to flash an Xbox 360 with a LiteOn drive using an 80W soldering iron and crappy solder.


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 No.95[Reply]

I'm thinking of creating a cluster computer out of my three raspberry PI's. Eventually my PC's too, if it works out well. Or parallell computing. Pros/cons for small/large systems?

Question: Is there any specific way to calculate it's speed? Do you simply add the speed of the computers together minus the programs actions?


Thank you.
6 posts omitted. Click reply to view.
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 No.111

>>95
Why not run a small Erlang VM on each machine?

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 No.112

>>111
this sir is right, erlang was designed for that kind of thing

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 No.859

>>95
>. Pros/cons for small/large systems?
Parallel computing is very, very difficult to actually take advantage of because of race conditions in programs.
Good, safe, SIMPLE implementations have to be atomic,i.e. MapReduce. Nowaday what big companies are doing is using horizontal scaling to cut down costs on server and to provide high availability at pretty much no cost. Like, if you want "computing" power for cheap, consider using a distributed file (HDFS-Hadoop stack) system and manipulating the data using MapReduce or writing soykaf for YARN.

http://static.googleusercontent.com/media/research.google.com/es-419//archive/mapreduce-osdi04.pdf

http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/YARN.html

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 No.870

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>Do you simply add the speed of the computers together
That will give you the absolute maximum, the actual performance will be significantly less.
Also raspberry pis aren't really ideal because they only have 100m networking and can't even saturate that.
>minus the programs actions?
not sure what you mean by that.

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 No.871

>>859
>>870
mhm based lains are based

>>111
yeah i'd see it as an opportunity to test out erlang/elixir too


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