frankzappa
Well-known member
I'm trying to use this piezo cable to detect a knock but I'm getting some weird results. Basically it responds very poorly to impacts, I have to whack it really hard for it to detect a spike. I'm an electronics total noob and I'm sure I'm using it wrong. I've wired it like a regular piezo with a circuit I found online. The copper on the piezo is connected to ground and the other wire to an analog pin. A 1MOhm resistor and a 3,3v zener diode is in parrallel between ground and A0.
Here is a datasheet for the piezo. Any electronics expert who can help me? https://www.mouser.se/datasheet/2/418/NG_DS_Piezo_Spiral_Wrapped_Coaxial_Cable_A1-1134575.pdf
Maybe this is not suited to pick up low level vibrations like a regular piezo?
I'm just using the serial plotter to see if I can get it to respond to taps. I know these types of cables are used as guitar pickups so should work.
Here is a datasheet for the piezo. Any electronics expert who can help me? https://www.mouser.se/datasheet/2/418/NG_DS_Piezo_Spiral_Wrapped_Coaxial_Cable_A1-1134575.pdf
Maybe this is not suited to pick up low level vibrations like a regular piezo?
I'm just using the serial plotter to see if I can get it to respond to taps. I know these types of cables are used as guitar pickups so should work.
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