New Plugin - [pimatic-smartmeter-obis]
A new plugin is available for reading smartmeters: pimatic-smartmeter-obis. This plugin supports:
The plugin is based on the smartmeter-obis library from Apollon77.
Please use this forum for questions, feedback and feature requests.
@bertreb Excellent. Thank your very much for your contribution and effort!
There is one thing I am wondering about which is smartmeter-obis library using serialport v7 which did not work with Node.js v4 according to my findings. For this reason I used serialport v6.2 for Homeduinojs. Did you successfully tested the plugin with node v4 and if yes which Node.js version did you use exactly? Thanks
"It always takes longer than you expect, even when you take into account Hofstadter's Law.", Hofstadter's Law
@mwittig you are right, in the package serialport 7.x is used. But Apallon77 states that the library works with node 4.x, 6x and 8.x. I installed the plugin via the pimatic gui, using the normal plugin installation. I’m using node 4.6.2 and npm 2.15.11.
When i check in the installed serialport version in the node_modules of the plugin (package.json), i see that version 6.2.2 is installed. The same happens on an other pimatic setup with node 8.15.1 and npm 6.4.1. Also serialport 6.2.2 is installed.
I did another test. Installed pimatic on another rpi with a new Stretch os and node 4.6.2 / npm 2.15.11. Installed the plugin successfully via the gui.
The result was the same; the plugin was installed with serialport@6.2.2
Actually, I only had a look at the current master, but the released version is 10 months old. 5 months ago the serialport dependency was changed with following commit message: “remove node 4, add node 12, upgrade serialport --> 2.0.0”. Most likely the next release will break the compatibility with node v4. If the next version is a major version 2.0.0 as indicated and you dependency is on 1.x.x it should be fine though
"It always takes longer than you expect, even when you take into account Hofstadter's Law.", Hofstadter's Law
Thanks for checking!
I noticed that the plugin is not listed on the Pimatic plugins page. I thougt plugins were added automatically or do i need to do something?
@bertreb Seems like the daemon process which updates the plugin list every 24 hours has been blocked. I’ll try to fix that asap
"It always takes longer than you expect, even when you take into account Hofstadter's Law.", Hofstadter's Law
Hey bertreb,
from time to time I get following error message:
error [pimatic-smartmeter-obis]: Error: Error while parsing SML message: Error: Unknown TL-Field for SmlListEntry!: Message: 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
at SmlProtocol.handleMessage (/home/pi/pimatic-app/node_modules/pimatic-smartmeter-obis/node_modules/smartmeter-obis/lib/protocols/SmlProtocol.js:72:31)
at SerialResponseTransport.processData (/home/pi/pimatic-app/node_modules/pimatic-smartmeter-obis/node_modules/smartmeter-obis/lib/transports/SerialResponseTransport.js:145:37)
at SerialPort.<anonymous> (/home/pi/pimatic-app/node_modules/pimatic-smartmeter-obis/node_modules/smartmeter-obis/lib/transports/SerialResponseTransport.js:81:25)
at emitOne (events.js:116:13)
at SerialPort.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at SerialPort.Readable.push (_stream_readable.js:208:10)
at binding.read.then (/home/pi/pimatic-app/node_modules/pimatic-smartmeter-obis/node_modules/smartmeter-obis/node_modules/serialport/lib/serialport.js:374:10)
at <anonymous>
Any idea?
The error is coming from the smartmeter-obis lib, I’m using in the plugin. As far i can judge, the error comes from bits/bytes getting lost in transmission from the smartmeter. The communication from smartmeter is without retransmission-on-error, so sometimes this error could happen. On the next successful received SML datagram the information flow continues.
I will make it configurable if you want to see the error or not. Only when you make debuglevel = 2 the error message will be logged and shown. I will publish an update today.
Would be nice. Thx.
It would also be conceivable to print from the second (or configurable) incorrect message an error.
But it up to you. I am happy with any solution 
Hi, I added an option to set the number of errors before you get an error message. The message shows the number of errors and total number of received datagrams. So you can see if there’s a problem with the communication. The update is published.
Thx very much for the fast adaption. I already updated the plugin and go now for a test.
Seems to work fine. No more reading errors occures, while the measurments works reably.
