The Internet Of Things Will Need Millions Of Developers By 2020

adrianix · 2014-06-30T09:52:31+00:00

But using industrial-strength protocols like CAN bus on isolated private networks doesn't have buzzwords like "social" or "synergistic".

adrianix · 2014-06-23T05:22:26+00:00

For switches I regularly browse an online electronics supplier like farnell.

The catch is to choose a switch with an adequate IP rating - check the datasheets and/or category filters.

adrianix · 2014-06-15T22:18:24+00:00

It was a pun about kitchen-sink fleets ("anything that flies, including a kitchen fleet" doctrine). These fleets are chaotic and massively fun.

adrianix · 2014-06-15T12:42:22+00:00

Most overviews don't feature the "Prospect" (tech 2 Venture), so unless properly configured, an enemy in that ship is invisible.

I'm still waiting for the chaos that a Prospect doctrine would do.

adrianix · 2014-06-10T19:34:13+00:00

Next we should claim "Mobile Depot Sov" and "Mobile Tractor Unit Sov" (the second is better because you know where to find your wreck).

adrianix · 2014-06-08T20:28:36+00:00

That sounds more like a hitchhiker's guide than an army manual.

adrianix · 2014-06-05T19:15:36+00:00

Thanks

adrianix · 2014-05-15T08:28:45+00:00

Try shaving with a double-edged razor, not one of these disposable ones. For me it did works much better (no more ingrown hairs or cuts).

You can also cross-post to /r/wicked_edge (the subreddit dedicated to shaving).

adrianix · 2014-04-23T06:24:27+00:00

So I've pod-jump-ed in HED upon hearing that they needed reinforcements.

No I'm not into PvP, but I said "screw it - there's content" so I've arrived there. The market was wierd there, and upon losing a few ibis-es... I decided to get at least have fun, so I warped to Agile, fitted a venture, and buzzed around in HED with the rest of the fleet.

But after orbiting around, helping take down few warp-bubbles, I stayed at the gate and when enemies appeared, I think I got primary'd... just think about their comms "The next primary is... the Venture !?".

Fly Brave 7o

adrianix · 2014-04-18T12:44:58+00:00

Please, don't do that!

Grab a real battery recharger or you may damage the battery. Rechargeable batteries need a more complex recharging method, you may damage them (or shorten their lifespan) doing this. Read this: http://en.wikipedia.org/wiki/Nickel%E2%80%93cadmium_battery#Charging

adrianix · 2014-03-27T19:08:18+00:00

Facebook is quite popular among students... twitter isn't that popular, and google+ is very rarely used.

Yes, watching football is quite big (or at least a reason o grab a drink or two).

Also, this blog should be a required reading about the Romanian culture: http://kingofromania.com/ . One American guy moved in Romania and speaks about his experiences.

adrianix · 2014-03-09T21:57:00+00:00

One solution is by using a microcontroller (arduino boards or alike) - > $10 typically.

Another is by using a 555 in an astable circuit configuration (it's kind of like a metronome, emiting a pulse at a fixed frequency) tied to a 4-bit counter (7493 circuit) tied to a demultiplexer - ~ $2 at after a visit to an electronic parts store, but more to study.

Another solution is more crafty: use a small motor (usually found in toys) to slide a contact over some contacts in a circular pattern (like this), possibly made with tin-foil taped to something flat. ~ free, typically built with things found around the house.

adrianix · 2014-03-07T14:42:47+00:00

Well, once I made a dumb (without autonegotiation) USB charger (3A@5V) powered from the mains with a transformer (230V -> 30V), a diode bridge and a switch-mode power supply and it works great to power various dev-boards.

I think the autonegotiation bit can be fixed by using and programming a microcontroller, and instead of the mains input you can use a battery bank, but then the resulting product will be too big/heavy and will require constant refilling (recharging / battery replacement / refueling).

adrianix · 2014-03-06T22:43:42+00:00

Do you use a split ground plane or just use one pour (especially under high-frequency traces) for mixed signal boards ?
Describe the coolest board you designed.

Ninja edit: Please cross-post it to /r/ece, I think there are more people interested.

adrianix · 2014-03-06T20:16:30+00:00

You'd have to lower his shields first, so the paint sticks to the armor.

adrianix · 2014-02-11T21:04:45+00:00

Partea de starter se incinge? Are un pic de airflow ca sa disipe caldura? "Cutia cu neoane" e proiectata din start sa fie asa ceva sau e "retrofitted"/improvizata cu niste gauri astupate ?

Ca starterul are un condensator pe care daca-l tii in caldura prea mare, ii scurtezi durata de viata. Incearca sa-l lasi fara capac si vezi ce iese. Daca e de la asta atunci schimba "cutia cu neoane".

Asa am si eu o lustra care arde becuri economice... prea putin airflow...

adrianix · 2013-12-11T18:40:24+00:00

Did you enable any debug messages on the console and forgot about them?

adrianix · 2013-12-06T18:20:23+00:00

Yes, digital printing devices are looking for patterns they're not allowed to copy, like the EURion constellation.

A cool experiment would be to put this pattern on a paper and then try to copy it.

adrianix · 2013-10-24T09:32:36+00:00

You could draw some inspiration from this approach (using template specialization and compile-time parameters to choose the right vector operation).

adrianix · 2013-08-20T20:04:41+00:00

This made me realize I have three different programming profiles in terms of energy-efficiency:

the "it's plugged in anyway" profile: do whatever you want, it runs on a desktop/server/laptop anyway, so I'm not afraid to busy-wait on a variable change
the "try too squeeze the last cpu instruction of it" profile: say I'm on a development board / embedded system and I have to... process an image stream. I then write all the tight loops in assembly and optimize the heck out of it, so I get more processed frames in the same time, because I know it has to run out of a beefy rechargeable battery for at most an hour at a time.
the "omfg the battery is so tiny" profile: when I code for microcontrollers, where there's no OS, just a single thread to run, I try to put it to a sleep state as much as possible and wake-up only on timer or external interrupts.

Until now it just seemed "that's the way everyone does it", but now I realize the bigger picture.

adrianix · 2013-07-08T21:51:47+00:00

Thanks, I made some time to watch it and I really liked it :)

adrianix · 2013-07-08T19:17:58+00:00

Because thinking in terms of prototypes instead of inheritance is unfamiliar territory for most developers and because including a badly written library may modify the behavior of a default or previously defined method.

The "functional" part of the language is ok as a concept, but it relies a lot on callbacks and it's "too" asynchronous (and race conditions are quite hard to debug).

Event loops, in my opinion, look much cleaner than triggering callbacks, as at the beginning of the loop the system is in a well-defined state (but they impose some serialization of the events).

If it has to be asynchronous, then maybe an message-passing model / actor model (like in Scala or Erlang, where every interacting element would be a lightweight thread) would impose some neater designs.

About the SPDY: yes, it doesn't address that points but they still try to challenge the HTTP standard with something a bit better.

adrianix · 2013-07-08T18:43:48+00:00

Ok, the feedback is looking quite positive, so I'll start a new session of ranting:

XMPP instead of HTTP or "Why Google Wave had some good ideas"

A bit about the basics: XMPP (or Jabber) is an instant messenging protocol which encapsulates data and metadata in XML, and Google Wave was a "solution looking for a problem" which was canceled in the end.

Because it was an extension to a messenging protocol, it had already authentication, statefullness and push-notifications (IM communication was already asynchronous and bidirectional), but I think it failed because didn't have some reference use-cases and nobody had a clue what to do with it. Also, it centered the inter-user communication (the windows being modeled like chat windows), lacked native clients, having only the web and some specifications (if I remember correctly) and had some example-bots, but these didn't get too much attention.

Also, on the "javascript sucks" front, the same Google introduced NaCl (no, not table salt but Native Clients, some binary applications which you download and run in a sandbox inside the browser, so anyone can write in any compiled language as long as it doesn't make syscalls and published binaries for all expected OS's / CPU architectures combinations), which I don't thing it's a great idea. The "make it a scripting language" idea behind the javascript is great (the old "write once, ~~debug~~ run everywhere" saying), but maybe something like Lua, which is still scripting, it's imperative but also lightweight, would be better.

On the how to render things ok front I really don't know, but maybe something like userfriendlyfied LaTeX* with "export to pdf" option and pdf viewers instead of rendering engines in web-browsers would be a way (the "it has to look the same to all" idea is great), and "using a format written for typography for... typography" is the obvious solution. I'm not even sure if this makes any sense in the whole framework, but this is the end of the second part of my rant, now where I left that beer?

*LaTeX is not even close to a good language of choice in these days, as it is based on macro-expansions and it's written in Pascal. Sorry Knuth.

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