NAN value a BIG problem

Projects Programming
25

Hi,
Have you placed your finger over the sensor to give it something to read?

Tom.... :grinning: :+1: :coffee: :australia:

26

Yes, but it doesn’t show me value but NAN.
I tested every components that is on breadboard with the help of the Arduino examples and works.

27

Hi,
Is the code I posted in post #18 the same as yours?
Have you tried the code I posted in Post #18?

Thanks.. Tom... :grinning: :+1: :coffee: :australia:
PS. If you are having trouble pasting your code the forum format, then just copy and paste it, like text, into a post and we will see what we can do.

Tom... :grinning: :+1: :coffee: :australia:

28

Yes but in post #18 it's the same code as the one I posted.

29

This is probably due to dividing by zero - your code does division by various values and if
any of those happens to be zero the result will be a NaN. Its best to explicitly check for zero
before dividing by a variable.

30

readEEPROM () is not optimally edited, drop line 39 or change the subroutine from line 180-190

31

Is there a reason not to use EEPROM.put() and EEPROM.get() instead of messing around with bytes and converting to a float ?

32

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