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Thank you very much for your answer. My goal is to be able to read analog data from a piezo sensor as accurately and precisely as possible. It responds well if I tap the sensor : But if I do nothing it fluctuates : The setup : I measured less than 1mV fluctuations when connected to...

Hello, I'm a total beginner in the arduino/teensy world, and I'm facing issues on my first attempt. I have the following code : void setup() { Serial.begin(9600); } void loop() { int sensorValue1 = analogRead(A0); Serial.println(sensorValue1); delay(10); } For now, nothing is connected...