http://www.testequity.com
This is where I got my Tektronix TDS1002. Nice website because almost all of the prices are posted, so you can window shop to your heart's content :D
Overall, I've been quite satisfied with this scope. My employer has test equipment that is much better, due to...
Having only used Simulink once, I can't give you an exact answer, but here's another thought for you to consider....
Presumably the output of your control loop is the error signal, i.e. the difference between the desired condition and the actual condition. How about if you compare the error...
You will need to take your FPGA's clock frequency into account... set up a timer to sample the incoming RS-232 signal several times faster than the bitrate. For a start bit, you're just looking for the first time you see the signal at '0', and you know the bit period after that. You could just...
You didn't tell us what the job is ;-) That one has the advantage that they have a real proof-of-concept running in real hardware, not just simulation.
If you have $$ available, you might check this out too:
http://www.arc.com/
The concept is that you start from a plain-vanilla...
This is probably more spendy than what you're looking for, but at least you can feast on some eye candy:
http://www.mobl.com/expansion/products/cardbus_expansion/index.html
Sadly, they are very temperamental. It's kind of a crapshoot as to how well they work, and in particular, if your...
Found it:
http://www.screamingcircuits.com/services/how-it-works.aspx
I've never done business with these folks so I can't say if they're any good. However, you at least can get a quote online.
Go get yourself a copy of Nuts and Volts magazine and take a look through the various ads for PCB vendors. Several of the companies which will manufacture PCBs in prototype quantities have partnered up with assembly houses to provide just the kind of services you are talking about. There is...
You've got my vote. In any calculus I have taken, a constant is any function whose derivative is zero--definitely true in this case. On top of that, all of the constant acceleration equations in my physics textbook hold for a = 0.
You didn't indicate whether this was high school, or...
Doesn't look like anyone else has pointed this out yet, but the schematic as well as your link text calls out a 470 picofarad capacitor, but the Radio Shack page you linked to shows a 470 microfarad cap. Shouldn't matter except that (a) the 470 uF cap is unnecessarily big and bulky, and (b) the...
To expand on the PC side of the discussion: When I first tried to implement serial comm uin a C program using the appropriate Win32 API calls, I never had any success... too many configuration options with no clear explanation of how they worked. Then, I found this, which worked immediately...
You didn't state exactly what your audio project entails, so here is another suggestion: Depending on what exactly you have in mind, it may be possible to use just the +12VDC supply and AC-couple the audio signal, biasing it up to +6VDC. This approach is definitely effective for small-signal...
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