I have found a good use of using these Shelly "EM" and "Plug S" scripts that are out there.
( fabian-lauer, vikt0rm, halmand, vincegod and more )
And from what i have understand most users of these scrips use them in an enviroment where these shelly devices are constantly powered on.
In my campervan my shelly devices will only be powered on when im connected to shore power.
I use 1 Shelly "EM" to measure the total consumption from the shorepower and
1 shelly "Plug S" controll and measure the draw from my heated floors.
I want to see the current total draw to make sure i dont trip the fuse on the shore power connection, and the "Plug S" shows me if the floor heating is on and what level is set.
(the level is set manually from 0 to 3 under the bed)
Now to my question:
Is there a way to modify the python script so the current.log is NOT flooded when the shelly devices is offline ?
Im not good enough to solve this problem my self.
The flooding error message in the current.log looks like this:
Traceback (most recent call last):
File "/data/dbus-shelly-em-smartmeter/dbus-shelly-em-smartmeter.py", line 212, in main
pvac_output = DbusShellyemService(
File "/data/dbus-shelly-em-smartmeter/dbus-shelly-em-smartmeter.py", line 47, in __init__
self._dbusservice.add_path('/FirmwareVersion', self._getShellyFWVersion())
File "/data/dbus-shelly-em-smartmeter/dbus-shelly-em-smartmeter.py", line 79, in _getShellyFWVersion
meter_data = self._getShellyData()
File "/data/dbus-shelly-em-smartmeter/dbus-shelly-em-smartmeter.py", line 118, in _getShellyData
meter_r = requests.get(url = URL)
File "/usr/lib/python3.8/site-packages/requests/api.py", line 76, in get
return request('get', url, params=params, **kwargs)
File "/usr/lib/python3.8/site-packages/requests/api.py", line 61, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/lib/python3.8/site-packages/requests/sessions.py", line 530, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3.8/site-packages/requests/sessions.py", line 643, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3.8/site-packages/requests/adapters.py", line 516, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='192.168.77.201', port=80): Max retries exceeded with url: /status (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0xb5b88970>: Failed to establish a new connection: [Errno 113] No route to host'))
Maybe there is a way to sense the "Errno 113" and stop writing it to the log after x times ?
