Dual 7-Segment LED Display

[erice1984]

alright, so i figured out how to amplify the signal using an LM324N

Only thing now is, should I use a comparator so when the knock hits and spikes it throws the voltage above causing a high signal? That would be my thought, and first approach.

Next, how do I get the PIC to read those and more or less count them?

[erice1984]

I found an IC that will do all the filtering etc for me and is digitally programmable... made by Intersil, the HIP9011