Electrical Engineering

user61389

8:04 PM

user61389

Guess I can throw that idea for a community ad away.. :)

jippie

@CamilStaps what is the lower image?

there'll be a new Arduino proposal

user61389

@jippie a mess

jippie

it is still online

oh it is a picture of one of your projects

user61389

@jippie I guess on something with RF, py2ohh.w2c.com.br/trx/vfo40-80/vfo1.JPG, but I'm not sure / have no idea who made this

user61389

8:14 PM

ha-ha

user61389

Ah, apparently it is some kind of ola amigos

angelatlarge

8:26 PM

@jippie @CamilStaps BBC tells me there is some sort of controvercy in your country about what kind of song the new king will get for the inauguration? Jeez, the problems some countries have!

user61389

@angelatlarge did that make it to BBC? Really..

jippie

@angelatlarge yeah I heard something like that too. Poor young king-to-be who is forced to listen to 'his' song while nobody took the effort to ask him what he likes.

/me is not really royalty aware.

angelatlarge

@jippie Apparently, he likes it. But some people think that it isn't respectful enough.

jippie

he has to like it.

it is his job

angelatlarge

Like I said: the problems some countries have.

jippie

8:29 PM

these people just want to profilate themselves.

yes, we have bigger problems than that

angelatlarge

@jippie And if you did have problems, you always have a read-made solution in the coffeeshop next door.

jippie

i don't smoke

angelatlarge

@jippie Hence the problems.

jippie

if only that was my biggest problem

what was your mosfet / bjt question again @angelatlarge

angelatlarge

@jippie Can I have a reference on that?

jippie

8:37 PM

...

angelatlarge

@jippie I have no idea what you are asking about

jippie

m

user61389

Ah I spoiled again, didn't I?

angelatlarge

Are you sure you don't smoke?

jippie

8:53 PM

3

Q: BJTs versus (MOS)FET to switch a load from a microcontroller

I would like to know what are the reasons for choosing bipolar junction transistor (BJT) versus a field-effect transistor (FET) (MOSFET or a JFET) to switch a load from a microcontroller. In our hypothetical situation, assume that the load requires more current than the microcontroller can provid...

@angelatlarge yes

angelatlarge

@jippie Ok, what's the question?

jippie

@angelatlarge the url to that question

angelatlarge

@jippie Oh, you just needed to find that question? Sorry. I am no help. Maybe I should smoke something.

jippie

Blog - Stack Exchange: Introducing our Careers 2.0 Employer Resource Center

Bethany Marzewski on April 15, 2013

When we launched Careers 2.0 back in 2011, we set out with a goal: make the job search process better for the millions of programmers who visit our site every month. Part of achieving this goal is educating employers about what you want from them. In the past, our annual user survey helped us help companies change the way they found and hired programmers, while Joel’s book on how to find the best technical talent and his talk on how to stand out and attract top talent are a few other examples of how we’ve worked to educate tech companies on what you really want. …

Why don't we have this for EE? @Kortuk

Kortuk

@jippie careers?

jippie

9:02 PM

uhhuh

Kortuk

@jippie that is SE wide,.

user61389

@Kortuk huh? I thought Careers 2.0 was for programmers only - careers.stackoverflow.com/about

Kortuk

@CamilStaps hmm, whatever. I had an invite to it a long time ago, I assume not for my 150 rep on SO

angelatlarge

@Kortuk It was for your writing skills

jippie

@Kortuk you probably wrote an answer which received an upvote there

angelatlarge

9:06 PM

@Kortuk (which I think I just fine/good/perfect -> never noticed anything)

@Kortuk BTW, @CamilStaps has a question for you about some comment you made long ago...

Kortuk

@angelatlarge ohh?/

user61389

@angelatlarge @Kortuk nah, only if you're bored (board!?)

user61389

3 hours ago, by Camil Staps

UPVOTE ME!!!!! I AM LONELY. — Kortuk Mar 22 at 21:44

Kortuk

@CamilStaps did you find an old one when I was still learning?

]]]]]]]]

angelatlarge

@CamilStaps We are the board. He is a mod

I guess he's a board too.

Maybe more like a plank

Kortuk

9:08 PM

@CamilStaps haha. no one was giving scifi love, and people like olin were voting down another SE's ad, no idea why.

user61389

2 days ago, by angelatlarge

@CamilStaps Are you giving me hard time about a typo?

angelatlarge

@CamilStaps Bastard! But your's is funny!

user61389

@Kortuk I downvoted too :) it's funny how fast the first comparisons with Olin were made, by the way

Kortuk

@CamilStaps Haha. No, this time i picked olin unrelated to other things, but because:

user61389

Jan 23 at 19:31, by The Photon

@DavidKessner He's like 1 micro-Olin.

Kortuk

9:10 PM

@Camil: It's a reference to the Star Wars death star, but that still doesn't explain the purpose of this ad. Again, who is supposed to be convinced to do what by this ad? — Olin Lathrop Mar 17 at 14:09

angelatlarge

It took me a while, but I like that ad, actually

user61389

@Kortuk yeah, well, I have to agree with Olin, but that's also because I never watched Star Wars, probably

angelatlarge

Looks like a funny fish at first

@CamilStaps Sigh. The youth these days

Kortuk

@CamilStaps that is fine if you dont get teh ad, why dowvote another SE trying to get its name out there?

jippie

>! huh?

angelatlarge

9:12 PM

You know what the problem with that ad is: the indentation is perfectly circular, but where it is, it needs to be squished

user61389

@Kortuk the community ads should have to do something with EE, I believe. Otherwise, one could also ad an add with "Cooking questions? Try Seasoned Advice instead."

angelatlarge

That's one problem anyway.

@CamilStaps "Forgot to put a heatsink on that voltage regulator? Try Seasoned Advice!"

It give you 5.0V and a fried egg

Kortuk

@CamilStaps Ha. It should have something to do with out site, that is why I support any nice looking SE add. It does not detract and I enjoy it. Either way, not a huge deal to disagree, but I am going to write comments to ask for upvotes.

jippie

@CamilStaps is your LM317 stable yet?

@Kortuk can I add an ad for myself, so if someone clicks on it I get rich?

Kortuk

@jippie technically it should be a non-profit, but whatever, we have not been strict about that.

user61389

9:16 PM

@jippie the problem is gone for now, but I'm not sure for how long..

user61389

Can I add an ad for Olin, so if someone clicks, he gets rich?

jippie

@CamilStaps that is a ridiculous idea

user61389

I am going to finish a job before going to sleep, so.. bye!

jippie

@CamilStaps You are a student, it is saturday evening. What do you mean by: "going to sleep" at 23:30!?

angelatlarge

10:11 PM

I am looking forward to a good answer to this:

1

Q: Compare AVR programming tools

I am dealing with PICs for some time and now I want to learn how to use an AVR. I have 2 MCUs in here, the AT32UC3C2512C-A2UT and the ATXMEGA32A4U-AU but I still dont have any programming tools. In the PIC, things are pretty simple: You just buy PIC Kit 3 and you can program and debug all PICs ...

avr programmer

Unfortunately, the only answer there now is not very useful.

angelatlarge

10:57 PM

Man, I am full of snarky comments today!

hhh

Stupid question: is there anything like potentiometer for caps? I need various small caps so wondered whether it is possible to buy some component where it is possible to adjust the cap?!

I found en.wikipedia.org/wiki/Variable_capacitor but looks outdated, there must be smaller versions of this

angelatlarge

@hhh Have you tried ebay?

hhh

Yes, apparently called variable trimmer caps...trying to get assorted set

vicatcu

11:23 PM

hey all

got a quick question, anyone hom?

home*

angelatlarge

@vicatcu Hiya. Whats up?

vicatcu

circuitlab.com/circuit/sbbkhk/voltage-choice-switch

the idea is I want 5V out when 5V connects to 'bas' and 3V out when 5V is disconnected from 'bas'

doesn't act that way in sim, am i doing it wrong?

angelatlarge

@vicatcu I haven't used the simulator much, but if both are connected, you will be discharging V2 into V1, right? V1 wants 3V between Vcc and ground and V2 wants 5V. Since both are ideal V sources both cannot be satisfied.

vicatcu

i thought the p-fet would cut 3V off when 5V was engaged

i.e. connected to bas

angelatlarge

Ah, sorry, I thought you meant a vertical connection from V2, gotcha.

@vicatcu If you put a switch in there, it would be much clearer :)

vicatcu

11:30 PM

ah true

refresh

angelatlarge

@vicatcu Nice. I am not a MOSFET guy, but let me think about it for a sec...

vicatcu

me neither

angelatlarge

@vicatcu Honestly, I don't really see what the MOSFET is doing there for you: vout is tied to base, right? So Vout will be at whatever the base is, either 0V or 5V. That's what comes to my mind.

vicatcu

yea you're right

angelatlarge

@vicatcu Ok, gotta get back to "work-work" for a little while. Good luck.

vicatcu

11:36 PM

so is the only way to allow power from two different sources a diode junction?

ok later

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