This is a excerpt from the extra_sensors_service script -
==========
# Get DHT22 data
def get_DHT22(self, event):
humidity, temperature = DHT.read_retry(DHT.DHT22, self.DHT22_PIN)
temperature = temperature * 9.0/5.0 + 32
if humidity is not None:
syslog.syslog(syslog.LOG_DEBUG, "extrasensors: found humidity
value of %s %%" % humidity)
event.packet['inHumidity'] = float(humidity)
if temperature is not None:
syslog.syslog(syslog.LOG_DEBUG, "extrasensors: found
temperature value of %s F" % temperature)
# NOTE: stores as celsius
event.packet['inTemp'] = float(temperature)
======================
The suggestion is to add something like this ------
# Get DHT22 data
def get_DHT22(self, event):
humidity, temperature = DHT.read_retry(DHT.DHT22, self.DHT22_PIN)
* try: temperature = temperature * 9.0/5.0 + 32*
* except; if temperature is none......*
if humidity is not None:
syslog.syslog(syslog.LOG_DEBUG, "extrasensors: found humidity
value of %s %%" % humidity)
event.packet['inHumidity'] = float(humidity)
if temperature is not None:
syslog.syslog(syslog.LOG_DEBUG, "extrasensors: found
temperature value of %s F" % temperature)
# NOTE: stores as celsius
event.packet['inTemp'] = float(temperature)
============
Am I on the proper path?
Michael H Grossie
mhgros...@sbcglobal.net
On Mon, Sep 14, 2020 at 7:50 PM Michael Grossie <mhgros...@sbcglobal.net>
wrote:
> Can someone enlighten me on the following that I see in the syslog. the
> length is either 21 or 51.
> *Sep 14 16:42:10 raspberrypi weewx[1032] INFO weewx.drivers.ws1: Failed
> attempt 2 of 5 to get readings: Unexpected buffer length 51*
>
> Thanks
>
>
> Michael H Grossie
> mhgros...@sbcglobal.net
>
>
> On Mon, Sep 14, 2020 at 6:27 PM Michael Grossie <mhgros...@sbcglobal.net>
> wrote:
>
>> Thanks Tom, Vince I apologize -
>>
>> I will look at something to catch the "none" temperature values.
>>
>>
>> Michael H Grossie
>> mhgros...@sbcglobal.net
>>
>>
>> On Mon, Sep 14, 2020 at 4:57 PM Tom Keffer <tkef...@gmail.com> wrote:
>>
>>> On Mon, Sep 14, 2020 at 2:34 PM Michael Grossie <mhgros...@sbcglobal.net>
>>> wrote:
>>>
>>>> Vince, thanks for responding. I would consider that if the system had
>>>> not been running for almost 10 days prior, without an issue.
>>>>
>>>
>>> Sometimes the temperature is valid, occasionally it is None. One must
>>> always be vigilant to the possibility that an observation value could be
>>> None. The author of the extension was not.
>>>
>>> The ordering in the log is misleading, but the engine shut down because
>>> of the exception, not the other way around. The engine shutdown happens at
>>> a lower level than the exception reporting, so it appears earlier in the
>>> log as the stack gets unwound.
>>>
>>> Vince has it right.
>>>
>>> -tk
>>>
>>>
>>> --
>>> You received this message because you are subscribed to a topic in the
>>> Google Groups "weewx-user" group.
>>> To unsubscribe from this topic, visit
>>> https://groups.google.com/d/topic/weewx-user/hJ3ZNKmKO6s/unsubscribe.
>>> To unsubscribe from this group and all its topics, send an email to
>>> weewx-user+unsubscr...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/weewx-user/CAPq0zEAT6rT%3DvtFf-4fmCy5Y7VxQrMn0qutXif%3DqCoUo9SvwxA%40mail.gmail.com
>>> <https://groups.google.com/d/msgid/weewx-user/CAPq0zEAT6rT%3DvtFf-4fmCy5Y7VxQrMn0qutXif%3DqCoUo9SvwxA%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>> .
>>>
>>
--
You received this message because you are subscribed to the Google Groups
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to weewx-user+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/weewx-user/CAJBcQpUdNNX%2BLeMsFH0hoi6Zu93bzWc6eYKeOL8eW19agFEs8w%40mail.gmail.com.
