File content as of revision 2:1dab962fe6f0:

RESULTS:
Our end results were fairly good in terms of expected output, given the difficulty
of the task.  When looking at our results of 1V sine waves, We noted marked 
decrease in output voltage of sine waves that had over 200Hz.  We also noted
some decreases at all increasing frequencies from the initial 100Hz.  This is 
evidence that our low pass filter is functioning differently than an ideal low
pass filter.  

Difficulties:
We had huge difficutlies with creating a sinewave that had accurate amplitude 
and frequency.  We eventually achieved this simply by taking several data points
from inputs of 5 - 70 micro seconds in delay, with ouputs of frequency from 
100Hz - 500Hz, in delay and using this data to create a function that would then 
work in the reverse.  That is to say that we used the data points with frequency
as an input and the wait time as an output to convert input frequencies to 
wait times that the STM board would then use to output the correct frequencies. 
This function was relatively accurate, and ended up being more accurate than the
relatively simple and "exact" mathmatically correct function that converts 
frequency to delta time.

Expected vs Actual Results:
Due to this somewhat "approximate" approach to creating the correct frequency, 
we obviously had some differences in our actual results when compared to our 
expected results.  Our generated function was most accuate at low voltages and low
frequencies, often achieving less than 1% error in the 1V and 100Hz range.  When 
using higher frequencies, the function would usually output a frequency that was 
roughly 2-4% higher than our desired frequency.  The voltage output was a similar
story, with 1V being almost perfect, while 3V was usually off by around 3-5%.  
Because of these differences, and the nature of imperfect capacitors and resistors,
our actual results when measuring our low pass filter were even further from
the ideal results.  We did note marked decrease in the output strength of 
frequencies over 200Hz, but not as sharp of decreases as expected.  We also 
meausured a decrease in strength of the signal even when frequency was still below
200Hz, which should only happen when very close to 200Hz.  These differences 
must be attributed to many factors, the primary ones being slightly incorrect 
voltage and frequency outputs, imperfect wires, resistor, and capacitors, and 
some limitations in the measuring equipment.