Add up analogue inputs to average them?

[Danellee]

Hi,

I would like to read a sensor (acs712) a number of times (20), add them all up, then divide them by the number of reads. So I can get an average. to give me a sort of analogue "debounce". Am I guessing the sum function?

I sincerely appreciate any advice you can all give me, I'm incredibly excited about learning all of this! ☺️

Edited March 18, 2021 by JColvin

[JColvin]

Hello,

I don't know what platform or host board you are using to read data from the sensor, but yes you can get an average value as you described, though I would not describe it as debouncing. You'll need an ADC of some kind to be able to properly convert the analog data from the chip of course.

Thanks,
JColvin

[Danellee]

I got an idea for a long time...If you want the the average without any digital processing, then you could use an analog low-pass filter, which gives a running average.
The lower the filter corner frequency, the longer the averaging time.