Dougie
Dougie
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Sorry did I pick the wrong number off my bill. 58.7 × 1.02264 × 39.2† ÷ 3.6 = 653.6 That's for 58.7 units (M^3) consumed. With 1.02264 volume correction. And a CV of 39.2 The 3.6 is to convert from Joules.
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Your variable gas calorific value is always on your gas bill. Mine shows as 1.02264 on my last bill. It is NOT part of the Glowmarkt MQTT stream.
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Have you simply cloned it and built it? Read the code, I think my code is fairly self-explanatory.
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It's always published on your gas bill for each billing period. I don't think anything gets it to MQTT. I had a look at my Glowmarkt MQTT output and couldn't see calorific value.
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So ask UW if they have loaded all the tariffs to your meter.
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Which energy supplier are you with? You may need to ask them if they've mucked about with your meter settings.
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It will give you an instant reading. There's also the MQTT interface that programmatically gives those same data.
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You have two entries One at: 1718582400 - which is Mon Jun 17 2024 00:00:00 GMT+0000 (or Mon Jun 17 2024 01:00:00 GMT+0100 in BST) with a value of 14.003 kWh. The second one at: Tue Jun 18 2024 00:00:00 GMT+0000 (Tue Jun 18 2024 01:00:00 GMT+0100) w…
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I think you need to follow my example and collect your data into a local SQLite or Mariadb (new name for MySQL) database. That requires some simple programming and nothing extra from the Glowmarkt folks. My code is at https://GitHub.com/DougieLawson…
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You can calculate the export from the Glow IHD stuff. I'm doing that with my simple Arduino sketch that displays the current "meterReading/out/elec" from my Glowmarkt IHD on a simple LED strip. I'll put the latest code on github at https:/…
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Have you asked Glowmarkt's tech support? Have you provided the serial from your IHD (as supplied by your electricity company)?
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Send an email to Glowmarkt
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If you know the tariff then the amount can be calculated using simple maths.
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The Glowmarkt systems are all read-only. The read smart meter data and display it (or publish on local MQTT) and nothing more. If the smart meter is 'off' (which is unlikely) then the Glowmarkt IHD would get nothing.
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Those fields are there for future development.
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You can chose JSON or nothing.
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It should happen automatically (as long as you have a stable internet connection).
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Sorry I was wrong. It is a Zulu timestamp so should be in the format yyyy-dd-mmThh:mm:ssZ.
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The timestamp is local (not Zulu) anyway.
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I've documented all of the JSON that comes back from the MQTT API in https://github.com/DougieLawson/glowmarkt/blob/main/mosq.c I take that JSON and decode everything in https://github.com/DougieLawson/glowmarkt/blob/main/mosqJSON.c I decode just…
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@billytkid To convert cubic metres to kilowatts you need to know the calorific value of the supplied gas (which can vary). Multiply by the volume correction factor (1.02264). Multiply by calorific value (~40.0). Divide by kWh conversion factor (3.6…
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MQTT isn't working for me either right now.
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Have Glow fallen foul of the five Sundays in October (DST ends on the last Sunday) this year? @JaneAtGlow @clivee
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Try this mosquitto_sub -p 8883 --capath /etc/ssl/certs -h glowmqtt.energyhive.com -u "someone@gmail.com" -P somethingsecret -t "SMART/HILD/CAFEDEADBEEF" No protocol needed on the host name.
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Are you using the latest versions of the Mosquitto client programs? http://mosquitto.org/download/ ii libmosquitto-dev:armhf 2.0.12-0mosquitto1~buster1 armhf MQTT version 3.1/3.1.1/5.0 client library, development files ii libmosquitto1:…
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It's working for me right now. Thank you.
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I've not recorded a gas reading since 2021-10-12 15:51:14. @clivee
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@clivee @JaneatGlow need to look at this. The MQTT feed is dead again.
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You're missing the TLS support and the port number is wrong. --capath /etc/ssl/certs -p 8883
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Send an email to support@glowmarkt.com with your IHD serial number to get Clive and/or Jane to take a look at this for you.