GPIO data plots

Stud1

In gpio data plots X-axis represent timing. But Y-axis is represent what ?

Eric

Depends on what type of gpio data you are plotting: adc value, voltage, or digital state.

Stud1

I am plotting ADC values by connecting vibration piezo element.

Eric

So then the y-axis plots ADC values.

Stud1

Yes i got it y-axis is plots ADC values , But what it represent either it represent voltage or current or something else ?

Eric

https://learn.sparkfun.com/tutorials/analog-to-digital-conversion/relating-adc-value-to-voltage

Stud1

Thank you.