This is a bit of analysis in Python done from the Melcloud csv file. It downloads it and lets you produce the graph and analysis for one or more days. Nothing that can't be done in a spreadsheet but quite useful to keep track of things.
This is a bit of analysis in Python done from the Melcloud csv file.
I am familiar with python for basic things but might be inclined to use R for charts, done using cairo_pdf the output can be very neat. But the problem I have is the Midea app won't let me down any data in any format let alone csv, the only way to get the data is manually tap on each day and transcribe the limited data. All very frustrating!
I am working on my ideas for other ways to get the data but Christmas keeps on getting in the way!
Midea 14kW (for now...) ASHP heating both building and DHW
This is a bit of analysis in Python done from the Melcloud csv file. It downloads it and lets you produce the graph and analysis for one or more days. Nothing that can't be done in a spreadsheet but quite useful to keep track of things.
Excellent data Kev, which really shows the effect of sub zero temperatures on how an ASHP performs.
I have the metering and monitoring package that is provided by Passiv Systems as part of the install with part of the cost covered by the RHI payments and gives you some of the basic metrics over time. Can be used to see whether the unit is cycling or not.
I remember seeing on Heat Geek a video of an open source monitoring system that may be worth looking at too -
However if you are after some of the more detailed measurements I suspect you would need to plugin to the unit itself to get these. Perhaps the industry should have some standards that could be used to extract this data regardless of unit installed.
However if you are after some of the more detailed measurements I suspect you would need to plugin to the unit itself to get these. Perhaps the industry should have some standards that could be used to extract this data regardless of unit installed.
It's wild, I paid thousands of pounds for this equipment, the unit is mine, the sensors are mine, the house is mine, data is mine. I shouldn't have to jump through hoops to get access to my own data from my own equipment!
However if you are after some of the more detailed measurements I suspect you would need to plugin to the unit itself to get these. Perhaps the industry should have some standards that could be used to extract this data regardless of unit installed.
It's wild, I paid thousands of pounds for this equipment, the unit is mine, the sensors are mine, the house is mine, data is mine. I shouldn't have to jump through hoops to get access to my own data from my own equipment!
Please remember that your primary role is that of 'consumer', the only true right that you have is to spend your money on things that you may or may not actually need. You could always buy a data logger and some sensors and set up your own monitoring system.
@mjr Hi, do you mind me asking if you've made any progress with this yet please? I've got an Ecodan ASHP in the UK which I've been trying to get working with MQTT.
I started along the lines of SwiCago, but most of these installs seem to be for mixed ventilation and heating heat pumps. Mine is just an ASHP. I've managed to get Home Assistant to talk via MQTT to a Wemos Mini Pro ESP32 board, which I programmed with Arduino and I've made up tails and connected to the C105 connector, but I've got stuck there. The Arduino sketch is obviously not right for my hardware. Ideally I would like to be able to control flow temperatures via MQTT.
Does anyone know if I can get this working with an ATW heat pump, rather than an ATA? I've got a Mitsubishi Ecodan ATW in the UK, with a CN105 connector which I've wired to a Wemos D1 Mini Pro. Ideally I would like to control the flow temperature via MQTT from Home Assistant. I've managed to get HA to talk to the D1 mini pro with MQTT, but all the Arduino sketches seem to be built for ATA units rather than ATW.
I've also tried the Python based methods on Github including pymelcloud, but I am a complete numpty with Python and have failed at the first hurdle here and can't get them to install I really need someone to spell out the steps required as although I feel reasonably happy with Home Assistant now, my knowledge of Python is very basic.
Following as I'm hoping to have an ASHP soon and would like to be able to capture data locally, ideally to Home Assistant.
Has anyone with a Midea reached out to Freedom to find out how their app accesses the data or to ask if they have a technical contact at Midea who might be able to help or offer some advice?
Link to a couple of github repositories for Midea integration:
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