error interceptor: skipping rain measurement

[Ivan Campodall'orto]

Hi, I have a problem since the beginning of the year,
it no longer gives me the rain measurement,
I have a frogitt wh4000se weather station connected to
weewx via drive interceptor ver. 0.60, it gives me the error:
user.interceptor: skipping rain measurement of 236.22: no last rain

[gjr80]

What you are seeing is not an error but expected behaviour. Your interceptor driver calculates the WeeWX rain field by taking the difference between the rain values in successive packets. This is because the intercepted packets contains a cumulative rain value whereas WeeWX records rain on a per period basis (per loop period or per archive period). When WeeWX starts up and the driver receives the first packet there is no previous packet to use to calculate the rain value, so WeeWX ignores the rain value and records it in the log. When the next packet arrives WeeWX now has the current packet and previous packet so it can calculate rain. Nothing is logged.

If you have a look through your log all of the  'skipping rain measurement' log entries occur shortly after WeeWX was started/restarted.

Gary