Apr
13
answered Get 3D coordinate of an external device w.r.t smartphone?
Apr
13
comment How to detect N pulses?
+1 for valid answer that's most likely to contradict the specification that questioner hasn't provided
Apr
12
answered Powering a Raspberry Pi from 12 V DC
Apr
11
comment Resampling with MSB operation
bb_sample <= {i_msb,q_msb,bb_sample[31:16]} would be valid; tragically you can't do subselects off anything that isn't a reg or wire.
Apr
11
comment Connect electret mics to computer
You can have more than one USB soundcard .. although you have to tell your software which ones to use.
Apr
11
answered Resampling with MSB operation
Apr
10
comment Use Earth and Ground Rods as Tip and Ring for a Modem
The impedance of the ground will be huge; I doubt you could get this to work even at a distance of 10 centimeters.
Apr
9
comment HDMI microcontroller / DSP tutorial
Have a look at kosagi.com/w/index.php?title=NeTV_Main_Page (which may be the thing John U is referring to). It's not at all easy.
Apr
4
answered PCI-Express Processor/Co-processor cards
Apr
4
comment How do we know loop currents exist?
The other answers are reasoning by analogy, not formal proofs - this is the most authoritative answer with a formal proof. Although apalopohapa is approaching a sketch of a proof with his planar decomposition.
Apr
4
comment What exactly does Watts and dB signify?
"what Wattage amp am i supposed to make" - are you trying to fill a concert hall or drive a pair of headphones? For home use in one room, even 15W per channel will be perfectly adequate with a set of normal 8 ohm speakers; for some classical music with a very high dynamic range you may want to go up to 50-100W per channel.
Apr
2
comment What's the rationale behind "wall wart" plugs?
Why is this being downvoted? It's a legitimate question, especially if rephrased as "if I were designing a system, which should I use and why?"
Apr
1
comment Is there a constant power supply?
The reverse of this is in common use as "maximum power point tracker" for solar cells: for a given output voltage, vary the input voltage/current point for maximum power transfer from the cells.
Apr
1
comment Is open relay to local users the right way to work on port 25?
Well, you could not accept mail (firewall port 25), which is sensible if your users aren't humans reading mail on the machine with 'mutt' or similar UNIX clients and you aren't running imapd etc. What are you trying to achieve with this postfix server?
Apr
1
answered Is open relay to local users the right way to work on port 25?
Apr
1
asked Understanding sendmail -bt in conjunction with aliases
Mar
30
answered Which is the biggest number of cores in a processor which is available on the market?
Mar
28
answered How does internal capacitance affect an electret microphone?
Mar
27
comment Is Google overreaching by forcing me to use TLS?
In order for this to be "evil", you'd have to argue that it causes some kind of harm.
Mar
25
comment VHDL - how to use inout as inout and as normal out?
You need to have it driven from a tristate buffer, I think.
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