that looks good, too.
The only concern with your solution for me is sending the data outside my network, but I like the idea with the current sensor.
I may have to get one just to play with it, I think mounting the SCT013 on the Cable should be managable by myself.
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Measure Power Consumption
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you don’t need to send your data outside your network. you can program the attiny to provide data in plain text.
the difficulty is to adjust the sensors to the nearest wattage and of course the mounting in the electrical enclosure! do that on your own risk !!which energy meter do you have? maybe it’s possible to read out your energy meter via IR - if it’s a digital one.
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I have a really old one from 1984
no led, just the spinning disc.I think your solution with the induction measuring is a good starting point, I will order three sensors and the board for the raspberry pi
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@theslashy said in Measure Power Consumption:
german is great
EDIT: Translated text to English, @GooglyEyz Please, don’t use German outside of the “Support in Deutsch” topic. Thanks!
Edition 17 of the German c’t magazine contains an article (see page 90) which describes how to build smart meter using Raspberry Pi and Modbus Energy Meter. However, the meter is for private use only, hence it does cannot replace the existing energy meter. Installation should only be performed by an authorized electrician and local safety regulations apply. The article describes the integration with OpenHAB, however, thanks to the REST API it should be no problem to integrate with pimatic, too.
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Can you post a picture of your energymeter? There is a chance that the disc has a black mark/stripe on it or some spot on the disc. That should be your starting point to capture when this spots passes with something like a extra LED and a LDR.
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you can use a tcrt5000 sensor for reading out ferraris energy meters
@koffienl isn’t that a part of ESPimatic? you are reading the pulses from a sensor and send it to pimatic at the given intervals as far as i understood.
so if there would be no interval but a continous reading and sending of pulses it might be possible to read out the energymeter
i know that it’s not fitting the needs, but maybe it could be possible with ESPeasy at the moment.however, the question of @theslashy is how to see the actual wattage. it might be possible to calculate the wattage with the time period between the pulses but i guess this is very inaccurate.
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Yes, it can count the pulses from such a sensor and send to pimatic.
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@koffienl
ok so with a tcrt5000 it’s like the youless technically?
I will have a look at thisI ordered the inductive sensors from UK and will compare the methods
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I´m using an Emonpi and an EmonTx from https://openenergymonitor.org/ for maybe 10 years now.
I send my data to Pimatic via Mqtt.
Gruß M. -
If money doesn’t matter and you’re looking for a 3-phase energy meter which measure loads and feeds you may want to have a look at the UNIEQ-Box. A first version of the plugin for pimatic is also available. The full range of measurement attributes will be added in the next release shortly.
"It always takes longer than you expect, even when you take into account Hofstadter's Law.", Hofstadter's Law
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that seems a bit overboard for my purpose