Noisy Fuel level Voltage filter

PMU
1

Hello,

I have a fuel level sensor connected on A5 with an external voltage devider. 0V=0% and 1.33V=100%. Works like that. Now i have the wish to smooth the signal somehow. It is constantly switching between 80-82-78-81-76% and so on multiple times a second. is there a way to smooth the values and take the average of the last 10sec or something?

Thank you

2

Take the output of a5 channel and filter using “rate of change” in numbers. Then use number output as your filtered out.

Sampling every 10 seconds with a medium filter. You can change sample time and up filter too.

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3

Will try tomorrow :+1:t2:

4

rate of change gives me 0 or 1 or -1 the whole time. Unfortunately that doesn’t help me. Did i overlook something?

5

No, its physically giving the rate of change. For some reason I thought we could us that as a filter but maybe not.

6

I found where a filter can be setup. ADU is example.

Adu analog input filtering - ADU - Ecumaster Community

7

Yes, i tried that. I don’t remember what the problem was. I will try again and report back.

Thank you