On Thursday, February 16, 2017 at 10:36:10 PM UTC-5, [email protected] 
wrote:
>
> OK, I think I've got it.  One more thing.  Is there a point to including 
> pairs where the value is zero, or is that assumed when the data gets rolled 
> up for archive or plotting?
> Thx, Chris
>>
>>
>>>
chris,

if the sensor returns a value of zero, then return zero.  if the sensor is 
broken, return a value of None.

btw, you should return numeric values (integer or float) whenever 
possible.  it is ok for the driver to use string values internally in the 
dict, but anything that is returned in a LOOP packet must be numeric.

have you read the 'porting to new hardware' section of the customizing 
guide?

http://weewx.com/docs/customizing.htm#porting

m

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