massimodacock wrote:The Murata Piezos are in my opinion very expensive. Potentiometers would be cheaper but will they do it?
Perhaps i should work on the pad design.
I bought them cheap from mouser.com. If you build a voltage divider, you will need a resistor. Potentiometers are just variable resistors, so yes, it will work! If you're happy with the bounce of your pads, go for the potentiometers.
Today i am starting to build the rack from pvc pipes.
Great! I am on the same boat too! Give us some pictures (and ideas) when you finish. I 'll do the same!