Author Archives: james

Swimming, 22nd December 2021

Posted on December 22, 2021 by james

It’s getting very quiet at the pool as Christmas approaches. I think there were at most seven swimmers in the session today. I wasn’t feeling too great but my 50m set actually went quite well in the end. I had … Continue reading →

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Second take on emoncms device template for RFXmeter

Posted on December 21, 2021 by james

I felt I needed to revisit the template for my RFXmeter devices because what’s really required is kWh consumption figures between readings rather than cumulative values. Also there needs to be a way to handle the count values rolling over. … Continue reading →

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systemd configuration file for RFXcom to MQTT Perl script

Posted on December 21, 2021 by james

First job of the evening (at least, first indoor job of the evening) was to come up with a unit file to start the Perl script that takes power consumption data from my RFXcom unit and publishes it to MQTT. … Continue reading →

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Two steps forward, one step back

Posted on December 21, 2021 by james

This evening I made rather better progress with emoncms than I did a couple of days ago. I decided to go all-in and set up supervisord to control the processes running in the Docker container and that seemed to work … Continue reading →

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Swimming, 20th December 2021

Posted on December 20, 2021 by james

I didn’t get to swim on Sunday which was a disappointment. Apparently Everyone Active’s booking system “lost” the session details so they couldn’t be booked. They’d have let me in to swim if I’d turned up though. Shame the receptionist … Continue reading →

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Why do Hermes still exist?

Posted on December 20, 2021 by james

The world being the way it is, we’ve probably had more deliveries than usual this winter. Quite a number of them have, sadly, been misdelivered by Hermes. Some have merely been several days late on a “next day” or “48 … Continue reading →

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One step forward, two steps back

Posted on December 17, 2021 by james

I’ve spent a happy (hah!) evening trying to work out why emoncms wasn’t recording any data from MQTT. The documentation seems to claim it “just works”, but I just couldn’t see anything happening, even when I’d checked that the code … Continue reading →

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Publishing RFXmeter power sensor data to MQTT

Posted on December 16, 2021 by james

More hunting around for helpful modules led me to believe that the easiest way to get data from my RFXmeter sensors into MQTT/mosquitto so it can be read by emoncms was to stick with Perl and use the Device::RFXCOM and … Continue reading →

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Swimming, 16th December 2021

Posted on December 16, 2021 by james

My shoulders felt very tired whilst I was warming up today so I wasn’t expecting to achieve much, but actually it didn’t turn out too badly in the end. I did fail two of my 50m reps, but the first … Continue reading →

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Adding support for new devices to emoncms

Posted on December 16, 2021 by james

To be clear: I’m not certain this is the right way to go about this. It’s mostly based on guesswork and assumption from what I’ve scraped together reading around the discussions about emoncms. For the moment it appears to be … Continue reading →

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