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Home Page: https://rpjios.com
License: MIT License
RPJiOS: RPJ's RPi OS, a sensor data platform for the Raspberry Pi built with python2.7 and redis.
Home Page: https://rpjios.com
License: MIT License
REDIS_URL
handling needs to be fixed, is really the point.
So the discover information auto-cleans itself up after a bit of time (could be awhile too, 15 minutes or even an hour).
Hello,
I am a new to these types of systems and following the guild I managed to get my system up and running and data feeding into Thingspeak, Channel ID: 802605
Issue is the code is failing to a bad internet connection I have, as I run your system through a VPN.
Thought I set up the device in tehran for a laugh as I am on Holiday here.
Are you able to just keep requesting the URL in a constant loop until it connects again?
More code here:
Success: entry #792 added
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 754, in run
self.__target(*self.__args, **self.__kwargs)
File "/home/pi/rpi/env/local/lib/python2.7/site-packages/rpjios/SubscriberBase.py", line 54, in _sub_thread
map(lambda sf: sf(m), self._subs)
File "/home/pi/rpi/env/local/lib/python2.7/site-packages/rpjios/SubscriberBase.py", line 54, in
map(lambda sf: sf(m), self._subs)
File "./bin/thingspeak", line 39, in msg_rx
_resp = urllib2.urlopen(_url)
File "/usr/lib/python2.7/urllib2.py", line 154, in urlopen
return opener.open(url, data, timeout)
File "/usr/lib/python2.7/urllib2.py", line 429, in open
response = self._open(req, data)
File "/usr/lib/python2.7/urllib2.py", line 447, in _open
'_open', req)
File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
result = func(*args)
File "/usr/lib/python2.7/urllib2.py", line 1241, in https_open
context=self._context)
File "/usr/lib/python2.7/urllib2.py", line 1198, in do_open
raise URLError(err)
URLError: <urlopen error [Errno -3] Temporary failure in name resolution>
^CTraceback (most recent call last):
File "./bin/thingspeak", line 57, in
time.sleep(0.5)
KeyboardInterrupt
Plus great job on the code even for a total nobe I got it working.
Cheers.
Mehdi
On charlie, the forwarding invocations of this seem to be leaking quite badly over long periods (these have been running for about 9 days):
ryan 3038 0.1 17.1 2233072 2090796 pts/1 S+ Jan06 20:54 python ./bin/downsample -i redis://u:XXX@localhost -o redis://h:[email protected]:15979 -p * -r 10 -t list:suffix=.list,limit=5000 -m flatten:mapping=mapping.json,include-raw=1
ryan 4796 0.1 16.5 2166996 2024552 pts/3 S+ Jan06 20:10 python ./bin/downsample -i redis://u:XXX@localhost -o redis://h:[email protected]:15979 -p * -r 10 -m flatten:mapping=mapping.json,include-raw=1 -t key
The cause isn't immediately obvious, though I'm suspecting the internal windowed cache isn't windowing or something.
Per this calculator from the EPA, concentrate-to-AQI JS source here.
Could even implicitly enable via a URL scheme for -o
such as thingspeak://WRITE_API_KEY@CHANNEL_ID
. Also, downsample
really needs to be re-factored. Should probably file a separate bug for that...: #10
_runloop
is really _tick
: fix this, and improve the implementation in general (to allow both!)
On a reboot, a device may have a localtime value that is stale from the last boot, and before the device updates time (from NTP) it can start publishing sensor data with stale timestamps. This isn't a huge deal, but it does cause dirty data.
The thingspeak
tool seems to hang very occasionally after running fine for long periods (~days), and seems to do so somewhere in the PSubscriber code for listening to redis. That's about all I know now.
Redis 5.0 landed the feature that this code base half-implements! The examples in the docs are even sensor-based! Re-implement using streams, obviously. (Will need relatively wide adoption of v5, though)
Ugh.
Doit. Doit.
Will require a re-thinking of sensor runlooping (and therefore is related to #3), as ideally any NMEA stream-producing sensor should act in a push-only manner rather than the current sensor-src
-tick-based-pull mechanism (confusingly named _runloop
, hence #3).
Redis 5 streams would come in really handy here, but an implementation based on lists and using BLPOP
to block consumers until a new datum is available could work well too.
Need to make this configurable and be sure it's setup to happen every so often (~once/week)!
The downsample
tool has grown far too ungainly as it has gained features (and still needs to gain another feature with the integration of the thingspeak
forwarder, #8). It needs to re-factored, maybe re-thought. There's also that send-outside-the-send-thread problem with lists. That's bad, mmkay.
It's going to have to happen someday...
A couple folks on Hackster.io have gotten in touch with trouble building the SPS30 submodule via setup.sh
, and I've been able to reproduce it on stock current Raspbian (2018-11-13):
pi@raspberrypi:~/rpi $ ./setup.sh
*** RPi platform detected: building sensor drivers and including hardware interface modules.
* Looking for virtualenv: NOT FOUND
* Trying to install virtualenv...
* Looking for redis-server: NOT FOUND
* Trying to install redis-server...
* Looking for zip: NOT FOUND
* Trying to install zip...
* Looking for python-dev: NOT FOUND
* Trying to install python-dev...
* Looking for libjpeg9-dev: NOT FOUND
* Trying to install libjpeg9-dev...
* Looking for python-smbus: NOT FOUND
* Trying to install python-smbus...
* Fetching embedded-sps submodule: The authenticity of host 'github.com (192.30.253.113)' can't be established.
RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
Are you sure you want to continue connecting (yes/no)? yes
./setup.sh: line 45: pushd: embedded-sps: No such file or directory
done
* Building embedded-sps submodule: ./setup.sh: line 51: pushd: release/sps30-i2c: No such file or directory
./setup.sh: line 52: pushd: hw_i2c: No such file or directory
mv: cannot stat 'sensirion_hw_i2c_implementation.c': No such file or directory
./setup.sh: line 55: popd: directory stack empty
failure!
./setup.sh: line 64: popd: directory stack empty
./setup.sh: line 65: popd: directory stack empty
* Initializing virtualenv: ^Cfailed! Cannot continue.
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