hirez: Humppa! (Humppa!)
SHA2017 call for participation opens!
hirez: Humppa! (Humppa!)
I'm probably going to do something crap and LJ-antagonistic like post a bunch of pictures to FB that no-one outside that horrible walled attention sink can look at. And indeed that no-one inside that horrible walled attention sink will look at. Or they'll look at them and it'll be as impenetrable as livecoding music.

EMFCamp2016 was utterly cosmic, once I'd got over the lack of sleep.

The badge seems to have one of every sensor, but also seems to crash micropython for a pastime. Although that mostly seemed to be a thundering horde problem followed by a (lack of) caching one. But there's probably not enough elbow room on the board to do it right or something.

I also have a Milliways coin, which has only taken oh-god-about-a-decade-and-a-bit.

Next one: https://wiki.sha2017.org/index.php/Main_Page

If you can't wait that long: https://bornhack.dk/
hirez: Humppa! (Humppa!)
https://www.emfcamp.org/cfp


I am semi-actively considering both 'Exploiting codes-of-conduct for fun and profit' and 'Making life hard for the internet of rubbish things'
hirez: (Information Hazard)
An odd idea from an earlier conversation: what has become called 'the internet of things' by a set of tedious marketing departments has already turned into a nasty balkanized set of demographic-slurping ad platforms.

We've already seen/read the stories about 'internet' tellies having cameras and microphones and c0de that grasses you up to $manufacturer, and yesterday or the day before we learn that VTech (purveyors of 'child' 'friendly' devices to the chattering classes) have/had server s/w so old and shite that none of my hyperbole or simile is up to the job of describing its hatefulness.

Follow those things to their twitterlogical conclusion and reality quickly turns into Brass Eye.

I have no idea what the Tivo box is telling Virgin. If I had a Nest rig, I would have no idea what data was being archived.

(Your data will be collected. I work for a small web/publishing shop and we graph the shit out of every metric we can squeeze out of the kit. Everyone does now. Well, everyone with any sense anyway.)

So I would be jolly interested in instrumenting my abode and fondling the data to see what tumesced. I would also be jolly interested in making damn sure I (or machinery under my control) was in charge of the data that travelled in and out of said abode. It would also be really jolly nice if kit that didn't want to play well with the other children (over-clever tellies, etc) was given a bloody hard time by that machinery.

I have no idea what form this device might take, but I envisage it as some sort of anti-cuddly object. the antithesis of Nabaztag, IPV4-Barney or network-Barbie. Harry the network bastard, who nmaps everything it finds, fuzzes the shit out of open ports, and sits on your default route so it can transparently and maliciously fuck about with the traffic it does not like.
hirez: Humppa! (Humppa!)
Such is the marvellous pace of technological change, it only takes two lines of wonky Ruby to make the output of a C&N webcam work in much the same way as 'The robots of death'. Hopefully with less mayhem, wellies and seventies retrofuturism.

Retrofuturism is obviously the artistic response to what happens when the robots wioll haven be put in charge of making the maglev trains run on time.

Mind, given the way that yon shoddy webcam reacts to white LEDs (poorly), those who wished for mechanical signalling may yet get their way.

No c0de and no pics to show off this time.

Tangentially, it's probably not just me who grovels through rich but poorly-documented APIs/libraries, thinking 'That probably does something dead interesting, but I have no idea what since the effect of swapping CV_WOMBAT for CV_ANGRY_BADGER and making :polyp => 3 is not described.'

I should probably try to frig up some Fisher-Price knobs to test the interestingness of CV_WOMBAT.

In accordance with prophecy, stack_user.com is less than no help at all. Still, at least it's not as bad as the HPUX 'forums'.
hirez: Humppa! (Humppa!)
I think I was first introduced to the idea of software-defined radio at What The Hack in 2005. A chap (more than likely Eric Blossom) was going on at some length about passive radar, telemetry and DXing using computers, a thing called GNU Radio and some DC-to-daylight hardware for £Kerching! It sounded like all sorts of jolly expensive fun, and the notion of passive radar I filed away for a story where the bad sorts couldn't find the upstart troublemakers because their radar-seeking missiles had no radar transmitter to seek.

A few weeks ago, [livejournal.com profile] jarkman was going on at length about RTL-SDR and cheap Freeview podules. I filed that away because I was in between getting paid.

Since then I've been paid, and indeed accidentally Ebay for a USB podule that will cope with circa 27MHz to 1.7GHz at £12 delivered. Not quite DC to daylight, but not quite £2K either.

(I note that a search of 'ebay RTL' reveals all sorts of Shenzen-sourced things that 'require own welding', but will start at 100KHz where all the valve-pilot wireless lives.)

Thus I have been nmapping bits of the radio spectrum to see what's out there. (That's theoretically where all the airport beacons and pilot/ATC chatter lives.)

One used to be able to spot the radio-ham types as one was driven about as a child, because they were the people with several thumping great aerials in their back gardens. I very much doubt that I'll end up with a rotating Yagi, but a small discone looks like it would be fun to build.

Things:
http://www.sigidwiki.com/wiki/Signal_Identification_Guide
http://www.techmeology.co.uk/gr-scan/
http://superkuh.com/rtlsdr.html
http://kmkeen.com/rtl-power/
https://github.com/keenerd/rtl-sdr-misc/blob/master/heatmap/heatmap.py

% rtl_power -f 24M:32M:8k -e 1h rtty.csv
% heatmap.py rtty.csv rtty.jpg

https://github.com/MalcolmRobb/dump1090
http://antirez.com/news/46
http://helix.air.net.au/index.php/d-i-y-discone-for-rtlsdr/
hirez: (My name is legion)

A watering meter for things that will otherwise be ignored until dead.

hirez: Humppa! (Humppa!)
EMFCamp2014 was an absolute blast. Hung around with splendid people, had a selection of daft ideas, drank beer and was the physical enactment of the code of conduct. (Or at least part of the team ditto.)

Now I have to sleep for a week.
hirez: Humppa! (Humppa!)
There have been locksport/locksmith types at every hacker-camp I've been to. It's like the law or something. There has to be a tent filled with people cheerfully fiddling with locks and a good handful of presentations about opening secure things and voiding warranties for the purposes of entertainment.

So like any sensible person I've been meaning to buy a set of picks so I can have a fiddle with lock-picking in the privacy and comfort of my own home. Or indeed at work when I'm staring into space and fiddling with a broken serial connector, I might as well be fiddling with a slightly broken lock instead.

Anyway.

Shiny toys have arrived )

The really very useful thing, which I've not seen before, is the cut-open lock. Which means I can also see what I'm pushing to and fro, rather than just having to guess it.
hirez: (Bunny Eye)
That technical thing I was struggling with in the last post? Works. :D

(Well, the test-rig behaves as expected after my usual approach to this sort of problem - do all sorts of other things for most of the day and then bash something out that looks right in five minutes...)

(This message brought to you by the National Technical Standards Board of Elbonia.)
hirez: (Information Hazard)
Odd new niches for not-rubbish computers turn up like unexpected bus-routes to timezones with disturbing physics. Someone might bleat on about it being a first-world problem, but I'd like to think we're just the fools with the money prototyping this stuff that'll be air-dropped on people who'd rather have food and/or guns at the behest of a mob of Hackernews believers.

[Poll #1942308]
hirez: Humppa! (Humppa!)
Dug out a second layer to wear this even for the first time in weeks. That's no good.

I think the single most useful computing device available now for the jobbing hacker is a Macbook Pro with a selection of VMs loaded. (XP, bunch of favoured Linux, that sort of thing) Those things + Arduino IDE, XCode, Vim, GitX and Scrivener means I can ignore multiple different types of work more or less anywhere on the planet. Ommwriter is also good, although Scriv + Boards of Canada work in more or less the same way. (yes, yes, massively privileged, terrible Jobsian-based free software fail, etc.)
hirez: Humppa! (Humppa!)
OHM2013 was, um, something special. Quite what it was, I'm not sure yet.

Hacker camp / drunken party / disco spaceship / lasers / Teslas / JHR talking rubbish / reallyfuckinghot / quite windy / briefly wet / remarkable sequence of daft ideas.
hirez: (tank)
A five-minute Arduino lash-up.

(When I get around to writing more code) Sending me a tweet will cause the pointy birds to rotate around the watcher. Anointy-anointy.

It uses one of the stepper driver boards that I was pointed towards here, and five lines of code. £1.50, some rubber bands and a small amount of soldering. Bargain fun, I think.
hirez: Humppa! (Humppa!)
It would seem that the wonky message-passing rig that I/we've been working on for a while is a bit of a hit with the Devops types. Which is nice.

Well I say 'nice'. I mean 'HA! GET IN! I WILL BE UNBEARABLE AT WORK COME MONDAY! ETC!'

Or, y'know, in bed because of being paged at silly-am by some shitbox website.
hirez: Humppa! (Humppa!)
No, really. It seems I went down quite well after all...

[FX: Runs about the place with jumper pulled over head.]
hirez: Humppa! (Humppa!)
Beetled off to Brighton for the weekend, which was something of a curate's egg.

'The quantum thief' is really jolly good, isn't it? I hoovered it up in half a day spent in some hotel rooms and a slow train back to Bristol.

Right now I am hacking on interrupt code for t'Arduino, because obviously there has to be a dead stop followed by swearing when yon robot hits something.

Although. I wonder if the logic might be better the other way up? This stuff's hard, but fun. Moderately simple problems in very constrained environments. Or at least, the responses-to-the-outside are constrained. The outside world isn't, which is also part of the fun.

I am also very glad that I pulled the 'wiring loom' from some horrible old PCs. Plenty of muti-pin headers on long bits of wire.
hirez: (Object)


Before: a pile of cheap bits.



After: assemblage of cheap bits. Arduino Uno - model's own.



Hand-assembled Adafruit motor-control board. Appears to pass the smoke-test and drive a servo.

This modern safety-solder doesn't 'wet' right, does it? I'm hoping that the rough-looking joints are JPEG artifacts.
hirez: (Laser goggles and raybans)
Friday a bit of a run-in-circles experience because oh shit packing and oh shit finding the place and oh shit hoof tent up before speaking to nice people and oh shit speaking to nice people.
Saturday and Sunday pottering about, speaking to people and having ideas.

Nottingham Hackspace are really quite organised.

Utterly lovely to bump into the unusual suspects.

Con swag: A badge. Fully programmable, several LEDs (which are shit-my-eyes bright) IR in and out, 2.4GHz near-field in and out. I have just been furtling with the demo-code and it looks like all sorts of fun.

Something of a C21st change from the usual lump of cardboard with your name on stuffed into a plastic thingy from the office shop.

[The BBC version]
hirez: Humppa! (Humppa!)
https://ohm2013.org/wiki/Wild_ideas

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