jippie

Eindhoven, Netherlands

wirespeed.xs4all.nl/mediawiki

Age: 44

Do you love your Pets as much as I do? Check the Q&A proposal!

I'm into:

  • Linux;
  • Networking;
  • IT Security;
  • Perl;
  • System integration;
  • Arduino;
  • ATtiny & ATmega Microcontrollers;
  • Analog electronics;
1d
comment Practicality of a sound based electrical generator
You want to Google for "energy harvesting".
1d
comment How to maintain EMI shielding whilst penetrating the shield with cables?
I believe (hence a comment) that you want the metal box to be at ground potential, share its ground with the camera. Try to find an STP cable for your Ethernet (shielded twisted pair) and also connect its shield to shared ground.
1d
revised Chattering relay on microcontroller power supply
added 7 characters in body
1d
comment Microcontroller circuit
Do you have an URL to your image?
1d
comment Make three respective LEDs blink with an LM3914 in dot mode
Why the no-555 nor-µC requirement?
Oct
17
comment gcrt1.S:195: multiple definition of `__bad_interrupt'
I compared the files in vimdiff, and I see a lot of differences (esp. the vector table), but I'n not entirely sure what you are aiming at in your last sentence. I'll have to sit down this weekend to try better understand what is happening and what the difference is between using -c and using -nostartfiles.
Oct
17
awarded Enlightened
Oct
17
awarded Nice Answer
Oct
16
comment Using a bottle of water as a resistor
In the old days big barrels of salty water with copper plates that could be submerged in them, were used to control electric motors at the carnaval. So they actually were used as a sort of resistor.
Oct
16
answered Using a bottle of water as a resistor
Oct
15
comment What does the scheduler produce in NS2?
But TCL pretty uncommon for the microcontrollers, hence why some of us thought about Stackoverflow initially.
Oct
15
comment What does the scheduler produce in NS2?
Am I correct when I think this network simulator is about simulating a Internet Protocol network (eg. TCP/IP)? If you mention networks here on EE, most people will think about a network of electronic devicesn (resistors, capacitors, transistors, ..). And when you mention a scheduler most of us think low level programming like is done in microcontrollers. I think that is the cause of the confusion, and still think your question is not a good fit for this stack, but now I am unsure which stack would be a better fit.
Oct
15
comment What does the scheduler produce in NS2?
Do you have a link to NS2 then? And describe in more detail what the issue is you face, because apparently several people here are unfamiliar with the tool.
Oct
15
comment How do I build a one shot non-retriggerable pulse generation circuit with 2 triggers?
@android927 Pick the cheaper one. The only difference between ATtiny45 and 85 is flash memory, with 85 being the larger one. Often 85 is cheaper when buying them from a local webshop or so. Beware to order PDIP8 package, not SOIC8 if you want to use the linked programmer.
Oct
14
awarded Popular Question
Oct
13
awarded Notable Question
Oct
13
comment Solderless breadboards: standard size specifications?
Different vendors have different layout. Some use single power rails along the sides, some have 6 tie points in a row others have 5. I don't think there really is such a thing as standard sizes, rather than vendors setting their own.
Oct
12
comment Did I do this circuit diagram correctly?
What are you trying to accomplish with C and D in series?
Oct
12
comment Are these two DVD drives the same?
This is consumer electronics, nobody is going to guarantee anything. It is even possible that you buy the same brand/type 6 months from now and find other internals in it. Only way to be reasonably sure is to purchase two (or more) drives at the same time.
Oct
11
comment Logic gates. BCD Multiplication. Karnaugh maps (I think)
Start by building a truth table: BCD is a 4-bit input, so you have 4 inputs. Then next to each input value you write down what the output bits would look like. 7*9 = 63. so you probably want 2*4 bits as output. So a table listing the inputs digit, b3, b2, b1, b0 and the output (digit * 7), b13, b12, b11, b10, b03, b02, b01, b00. Where the digit is just for readability, b1x is the high digit at the output and b0x is the low digit in the output.
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