This is my Test equipment used for testing
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For the testing purpose, the above project board was used to fix the microcontrolar and related componants.
This is the circuits of trigger amplifier and comparators used to identify signal sent by peizo sensers
Trigger Unit Circuits
Test Board
I used some rexine materials used for footware, a few yoghurt cups, piece of cardboard and sponge to construct the pad trigger panel. To overcome inter pad vibration I had to install the peizo plate in between the rexine at top and sponge sheet glued to the base. Each pad is mounted on the cardboard layer
by using half-cut yoghurt cups.
Pad Sencers
This photo shows all equipment made by me.
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