MiniSense 100
I have a Piezo Film Sensor and want to use it to detect vibration.
I'm in need of an example circuit that can run from a couple low power button cell batteries and can produce an high pitch audible tone with a small piezoelectric speaker and light up an LED. Or a switch to toggle between the audio or visual.
Another question. Is it possible to use a low end 8-bit microcontroller to accomplish this goal? Reason is, I would like to eventually make a switch that toggles between various audible sounds. But what's most important is that it be a low power device and be very small.
Any advice to help me get started?