Discuss how the circuit behaved when the potentiometer was adjusted to either end of its travel.
How easy was the circuit to adjust so that a normal voice caused the LED’s to light up partially (but not brightly)?
How easy was it to adjust so that a normal (i.e. not loud) voice could be barely detected?
Based on your experience with the circuit, what do you think is the range of discernable levels of sound? You did not use a sound meter, so illustrate your answer by using sounds that are easily understood, i.e…. “soft whisper,” “normal level TV sound,” or “loud automotive engine.” Put another way, how many levels of sound could you detect based on the various levels of brightness of the LED’s, with an illustration of each level? Use the data you entered on your data sheet to help answer the questions.
Discuss any problems that you had in constructing the PCB.
What lessons did you learn in doing this second kit project, as opposed to the first kit?