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12 lines
1.2 KiB
12 lines
1.2 KiB
7 years ago
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# Power Meter with SML
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Read data from a power meter (eHZ) using Smart Message Language (SML).
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First of all you need a IrDA USB dongle like described [here](https://wiki.volkszaehler.org/hardware/controllers/ir-schreib-lesekopf). I got mine from Udo ([Volkszaehler](http://volkszaehler.org)) but it looks like he is not selling these anymore. What I found is [this link](https://shop.weidmann-elektronik.de/index.php?page=product&info=24) to a shop selling these dongles.
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I used several information from the openHAB community, mainly from [this topic](https://community.openhab.org/t/using-a-power-meter-sml-with-openhab/21923/1).
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You need to get, modify and compile [libsml](https://github.com/dailab/libsml) from Github liked described [here](https://community.openhab.org/t/using-a-power-meter-sml-with-openhab/21923/1). I included my version of sml_server.c here as it differs a bit.
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* **sml.items**: Put this file into your */etc/openhab2/items*.
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* **sml.rules**: Put this file into your */etc/openhab2/rules* directory and modify it for your specific setup. In my case the compiled sml_server is in */home/openhabian/src/libsml/examples*.
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* **sml_server.c**: Put this file into the *libsml* subdirectory *src/libsml/examples* directory and compile *libsml*.
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