I am looking for a very small (not larger than 4x4 inches) device that can roam around on its own on a flat surface and transmit its location and elevation (precise to the millimeter). It can be of any shape: hockey puck, ball, square would be fine. It should be able to transmit its location freq...
@AsheeshR Doesn't seem 'too' on topic, but if you feel for the guy, I would
@AsheeshR Hey! Your rep is 7835, a couple of upvotes less an you were a 7805 regulator just like @PhilFrost
F***ing Pi acted up again today...
@jippie I feel a lot more secure now!!! I got a back up drive! You gave me gEEk nightmares and then it started to haunt me that one day my SSD would die... I got very scared... BECAUSE OF YOU! Then I stopped being a cheapstake and bought myself an amount of memory on an SD card, and back myself up on that... I HATE YOU! I HAD TO SPEND 15 $$$ FOR AN SD CARD! Hopefully I will sleep soundly tonight... ;D
@jippie I was still being a cheap stake since I didn't buy a real back up drive, but an SD card will do for now... :P
@AsheeshR I don't disagree with you. I'm not intolerant of "what can I use for ..." type recommendation questions, since pretty much half of an EE's work is answering those for any problem.
@AsheeshR I have an answer for that question if they want measurements to the nearest couple nanometers...for millimeter precision, though, I can't help.
EMI is all about isolation of noise to prevent interference between systems. Even if the two systems are on the same chip such as analog and digital, the user wants to avoid crosstalk of digital ground and supply currents from injecting noise into analog signals.
The crosstalk can be conducted b...
@abdullahkahraman That translation sucks. He says "I want to set a view I define, on any arbitrary screen, but I cannot find any way." Loosely translated to capture the sense of the sentence.
@abdullahkahraman I convert types all the time. Integer to/from float. Integer to/from various bit representations. Even Float to bit vectors. The only problem that I have with conversion is that I always forget the correct way to do it, and end up looking it up.
@abdullahkahraman I have one module that requires a sine wave table in ROM. My code, at compile time, calculates the sine wave table, converts it from float to fixed-point bit vectors, and populates the ROM.
@abdullahkahraman I have not read it before, but here is my take: This reminds me of the Fortran vs. Pascal vs. C vs. Cobol debates in the 80's that got religious. People who learned one language tended to defend that language "to the death", and would create many contrived reasons why their language is the best...
@DavidKessner How do you populate the ROM with after running some code at the compilation? Did you write your code so that optimizer handles your code and converts?
...this page you found may be doing just that, or it may be reasonable. I didn't go in-depth enough to decide. But the basic facts are that many successful IC's are designed with either language, and either language should work for the vast majority of users.
@DavidKessner Yeah, maybe. I have read somewhere that is says instead of asking "Which language should I choose?", ask yourself "Which language should I start with, first". Then, it states that VHDL is more beginner friendly since it is more strict on the code.
So that, when one starts with VHDL, s/he will not be facing with problems that are caused by syntax.
@abdullahkahraman In VHDL, some of the code is executed at synthesis, and some of the code results in actual logic. The code that executes at synthesis can do things like floating point math and reading of files. I just basically wrote some code that initializes the RAM at synthesis, and that cost just happens to compute sine waves.
@abdullahkahraman One major annoyance I have with VHDL is that it was designed by a government committee, and it shows. VHDL is very wordy and not very consistent. I can see that as being a down-side for newbies.
I was looking at my Arduino Uno and I noticed that symbol by digital pins 11, 10, 9, 6, 5, and 3. What do these mean? Does this affect the way it works? Can I not use these pins for certain situations?
@abdullahkahraman In Buddhist thinking, you try to become one with the universe. The Lama goes into a place and asks is they can make him "one with everything".
Something like this classmate from my college days. On some jokes, he'd laugh twice. In rare cases, three times. Keep in mind that back in college days most jokes used to be visual / sexual / absurdist.
We once asked him why the multiple guffaws separated by varying gaps. His response:
The first time, I laugh because everyone else is, and I don't want to be the odd one out. The second time is when I get the joke. The third time is when I start visualizing it.
@DavidKessner Yeah, I hate the work I'm doing right now: Having to remake a whole bunch of engineering drawings for a large chemical reactor, because the client wants the images to be "fax friendly", i.e. pure black and white, no shading, and big numbers for all dimensions. When was the last time anyone used a fax machine for sending a plant specification?
@vvavepacket yes. Since t could be any quantity, assume that t=2z. Now rename z to t and you see that the equality still holds. As long as this is the only equation in the system.
@vvavepacket Well if are using t somewhere else, then replacing t with 2t might not be harmless... for instance if (t>10) then nuke(ElPasoTexas) is not the same as if (2t>10) then nuke(ElPasoTexas) :)
@vvavepacket Read an article in the paper of how they are encouraging entrepreneurship, like this guy: sweetjones55.com, one hundred clients at a time, EACH paying about $1,000!!!
@jippie Number one: if you are going to what's-that-letter-before-alpha-test the Futile, I do need to know the top government secret of the Federated Islands of Holland: your phone's make and model. Please, pretty-please, with sugar on top?
Anyone know (@jippie, I am looking at you) of a Firefox extension to improve the Find bar? I find the lack of "whole word search" in the find bar.. disturbing. Regex would be even better.
@angelatlarge @CamilStaps is much handier with plug-ins and stuff.
I am a dinasour
I don't like plug-ins
because they break too easily
Most of the plug-ins I installed once were developed by a single person. Then when this person decides he / she doesn't need it anymore, it gets dropped.
@ThePhoton Umm... I guess that's true. I haven't considered that. I am one of those people that forgets to "update" one own settings, and so it hadn't dawned on me that in the age of Siri this joke is... outdated.
@ThePhoton Well, I seem to be worse at it than other people. Though as a regular human, I do tend to notice my own slowness better than other's people's slowness.
(Need to quit chat for a sec to sort out FF profiles)
@AnindoGhosh Excellent. I'd rather not start with tablets. I will look into what HTC Desire and a Motorola Defy are like. Thank you very much, sock master.
I was looking at my Arduino Uno and I noticed that symbol by digital pins 11, 10, 9, 6, 5, and 3. What do these mean? Does this affect the way it works? Can I not use these pins for certain situations?
