Electrical Engineering

3:27 AM

@hhh There are multiple ways of achieving that. Since your requirement is possibly analog, that may make things a little more expensive.

angelatlarge

Hi Anindo. You want to take a crack at this, in case I missed something?

stackoverflow.com/questions/16259160/…

Anindo Ghosh

@angelatlarge Too early for me to cope with SO :-)

angelatlarge

@AnindoGhosh Ok. Good morning :) I just figured I'd send fun SO stuff your way. But it is not Ardweeno

Anindo Ghosh

@angelatlarge I treat SO as a necessary evil. :-) Oh by the way, for the concurrency question, why is nobody talking about RTOS on MCUs? It was being discussed right here on chat a couple of days ago.

angelatlarge

3:42 AM

@AnindoGhosh Because a) I don't think it provides the kind of concurrency the OP is looking for or b) Because I don't even know what RTOS is, really.

Anindo Ghosh

@angelatlarge It'll give the same kind of concurrency your answer does: That's the best effort on MCU platforms.

angelatlarge

@AnindoGhosh You should post an answer then!

@AnindoGhosh I thought my answer was pretty clever when I came up with it, BTW.

Anindo Ghosh

@angelatlarge I agree your answer is quite cool. It's what got me thinking: That's the kinda stuff any real time OS would be pulling off oftentimes.

angelatlarge

►

@AnindoGhosh Maybe I should find out about RTOS then

Anindo Ghosh

@angelatlarge why do I not answer? Because I get engrossed in answers, and I've only slept 2 hours due to other work.

user61389

5:58 AM

Good morning!

Anindo Ghosh

6:21 AM

Hiya @CamilStaps

Bitrex

Weird bug with the AVR compiler, I have a function void eng_AssignAlgorithm(Algorithm algorithm, Voice voice)

if I reverse the arguments to the function call, it breaks the code

if I have them the opposite way, it works fine

angelatlarge

@CamilStaps You still trying to get your PIC->AVR reopened?

@CamilStaps Hallo

user61389

@angelatlarge no, clabacchio doesn't reply, so I rolled back to the original version, so that I could accept an answer

user61389

I still disagree it should've been closed, but I got my answer (and rep)

angelatlarge

@CamilStaps Rolling back to original on a closed question allows one to accept an answer?

@CamilStaps You got way too much rep on that!

user61389

6:34 AM

@angelatlarge not like that, but it would've been weird if the accepted answer had headings that the question not had, etc. Now Q&A fit each other better.

angelatlarge

@CamilStaps Although sometimes it is the silliest questions/answers that bring the most rep

user61389

@angelatlarge thanks man :P

angelatlarge

My most upvoted answer:

11

A: What there was before Arduino?

There might be a bit of confusion as to what Arduino is: Arduino is not just the hardware platform, but also a set of software that allows the same code to run on most/all of Arduino-compatible boards. However, since your question seems to be about hardware, I'll stick to that. Arduino was firs...

I mean WTF?

@CamilStaps Anytime

And yours looks like

10

A: Why do we still take digital logic?

Two reasons: Someone has to actually make that "technology that can simplify everything for us", they have to know how it works. Knowing how a system internally works helps the understanding on a higher level. In an analogy, we could say: "Knowledge of Assembly programming helps you making C pr...

If I had to pick one of my answers to be the most upvoted it would be something completely different, you know?

user61389

@angelatlarge I see that more as As on the sillest Q get the most votes, because everyone is annoyed by the question and then there is one that formulates it nicely

angelatlarge

@CamilStaps Hmmm.. maybe. You remember this?

user61389

6:37 AM

@angelatlarge what?

angelatlarge

5

A: How strong are the Arduino boards relating to interference robustness?

Unless I am misunderstanding the OP, then answer is a "no", unless it is raining energized transformers. Rain (the kind made of water droplets) does not generate EM.

user61389

@angelatlarge you answered that? Lol

user61389

Oh wait I've seen that, I upvoted it

angelatlarge

@CamilStaps Yeah, exactly! We had a long discussion of it here.

user61389

That guy got positive rep for that question.. +4/-6

angelatlarge

6:39 AM

@CamilStaps +4???? They accepted my answer :]

user61389

@angelatlarge on the Q I mean, 4 upvotes 6 downvotes

angelatlarge

@CamilStaps Yeah, I got ya. I was just adding another slightly weird point.

user61389

@angelatlarge yes, well, new users :)

user61389

You didn't hit 2k yet! I'm disappointed, you whoriest whore of all

user61389

(might want to put that in your bio)

angelatlarge

6:41 AM

@CamilStaps I've been Androiding. Answered a question on here, and even though @AnindoGhosh thought my answer was clever, he didn't feel the need to upvote it :)

Got a few rep on SO: wrote another monograph-length answer.

But mainly writing a sample Android app

user61389

@angelatlarge poor you. What've you been making for android?

angelatlarge

@CamilStaps Nothing very special: just trying to learn it a bit. This app has been written a thousand times over, I think: logger for the accelerometer data. I need to find out bike commutinc acceleration/deceleration patterns.

Anindo Ghosh

@angelatlarge Reason: A bit of additional research and a view on RToS implementations on MCUs, pro and con, would have made it a definitive answer.

angelatlarge

@AnindoGhosh (I am mainly giving you hard time): yeah, I wasn't into putting in the time into making it a definitive answer, esp. since I know zero about RTOS

Anindo Ghosh

Both my first and my second top-scoring answer are, I feel, well deserved.

44

A: Heuristic explanation of the usage of a pull-up (or pull-down) resistor needed

First: Yes, your understanding is essentially correct, other than the issue being voltage and not charge. Here is my analogy: Consider a door to a house, with really smooth hinges, and no bolt or latch. The door is so light and so well-hinged that the slightest breeze would cause it to flap ope...

angelatlarge

6:46 AM

@AnindoGhosh We all already upvoted it!

Anindo Ghosh

21

A: Why do these LEDs have different brightnesses

This is going to be really long, so just skip to the summary sentence at the end to avoid TL;DR. There are several factors contributing to varying millicandela ratings of LEDs, and more importantly the relevance of the mcd rating to the intended purpose: Angle of dispersion / beam angle: Th...

user61389

@angelatlarge haha, probably. But nice!

Anindo Ghosh

@angelatlarge I was not asking for an upvote. I'm already 10k, so no particular benefit / motivation.

angelatlarge

@AnindoGhosh Agreed on the pull-up/pull-down.

@AnindoGhosh Except that wasn't it you who said to me few days ago: while you are there (looking at the answer) you might as well upvote it :)

@AnindoGhosh Maybe it was @jippie...

Anindo Ghosh

@angelatlarge It could be me falling into the spirit of the conversation, but in general I've stopped looking at my rep more than perhaps once a couple of days.

angelatlarge

6:50 AM

Is this on-topic?

0

Q: connect cdrom to new motherboard

Hi, I've bought new Intel DH77EB. replacing my older motherboard 915GAV. I thought of reusing older DVD writer. but i'm unable to connect the "40-Pin" data cable to the new board. am i missing something ?