So after playing with the piezzo's, we grew worried that we might have to change our project. They were not very sensitive and weren't really picking up a whole lot of the vibrations very well. However, with the help of Dr. Hamid, we tried using a resistor with the piezzo's. Suddenly, everything worked brilliantly.
So now we have our four piezzos wired with header pins and we've cut out our acrylic and board. We also got four little rubber feet to raise up our board. We drilled the holes in our board to make it easy to run the wires through, and then superglued our piezzos onto the board. We also superglued the feet to the bottom of the board.
However, after putting the feet on, we realized that they were too short-we had calculated for the height of the breadboard, but hadn't considered the height of the wires coming out of the breadboard. So with some help, I designed new feet and printed them out on the 3D printer. They should be ready by next class period.
Currently, we've written a program that monitors the input from the sensors and gives us a print of the vibrations. It's a bit hard to read at the moment, but it tells us that each of the sensors are working properly. We'll work on formatting the output a bit better in the future.
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