I have a piezo film vibration sensor from Parallax. When I measure the output by oscilloscope I get ~10 volts. However when I try to measure its voltage with Arduino I get less than 3 volts. Any idea what is causing the difference?

Shock sensor value?

jusj May 9, 2018, 11:19am 3

Sensor is connected between analog pin and ground. Analogread max value is about 600.

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