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Growatt monitoring system

  • 03-09-2020 9:55am
    #1
    Registered Users Posts: 1,835 ✭✭✭ garo


    Anyone have a growatt inverter with a ShineLANBox. My syste seems to have gone offline since yesterday. I can log into the ShineLANBox so it has connectivity. But it seems it cannot find the server. Cannot resolve DNS and when I gave the IP explicitly it still cannot connect. Anyone experiencing similar issues?


Comments

  • Moderators, Category Moderators, Motoring & Transport Moderators, Regional East Moderators Posts: 58,862 CMod ✭✭✭✭ unkel


    Can you give it a fixed DNS? Try Google public DNS 8.8.8.8 and 8.8.4.4

    Lots of internet connected devices are having problems resolving DNS, particularly since the lockdown and people WFH en masse

    "Wind is Ireland's oil" - An Taoiseach, 25/05/2022



  • Registered Users Posts: 1,835 ✭✭✭ garo


    unkel wrote: »
    Can you give it a fixed DNS? Try Google public DNS 8.8.8.8 and 8.8.4.4

    Lots of internet connected devices are having problems resolving DNS, particularly since the lockdown and people WFH en masse

    Thanks for the reply. Yes it had the fixed 8.8.8.8 DNS resolver. Some server side changes had caused the issue. The problem was resolved with a firmware update on the RF stick.


  • Registered Users Posts: 1,835 ✭✭✭ garo


    As an aside, do people have experience with an open source monitoring solution that also has an app?


  • Registered Users Posts: 2,722 ✭✭✭ graememk


    garo wrote: »
    As an aside, do people have experience with an open source monitoring solution that also has an app?

    I have an emonpi* on order from openenergymonitor (based in wales and has an active community

    (i also have the EmonEvse so have already dipped my toe in the water there, MQTT, Node Red etc, intergration with practically everything if your willing to spend the time working at it)

    *its actually the EmonTX with wifi i have ordered because i already have the server part running on a pi i had lying around.

    app is pretty basic just a way to view some graphs etc


  • Registered Users Posts: 1,835 ✭✭✭ garo


    Thanks. Had a look. I don't need the hardware actually as the growatt system already has a transmitter and internet connected receiver. I'm just interested in the EmonCMS or its equivalent.

    I don't mind not having an app. I could rustle up a grafana dashboard on the home server and use that instead.


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  • Registered Users Posts: 2,722 ✭✭✭ graememk


    garo wrote: »
    Thanks. Had a look. I don't need the hardware actually as the growatt system already has a transmitter and internet connected receiver. I'm just interested in the EmonCMS or its equivalent.

    I don't mind not having an app. I could rustle up a grafana dashboard on the home server and use that instead.

    Yeah there's an online emoncms and then the fully fledged one that runs on the pi, if you can grab raw information automatically via a api/whatever you can do some data handling and feed that into the cms either on the pi or to the online one or both.

    Node red is really powerful. There may be a plug-in for it for growatt

    There is a small fee of 1 pound per feed per year, but can't blame them for trying to cover their server costs.

    The pi is free from running costs.

    Edit

    Yep someone has made something for node red

    https://github.com/johanmeijer/grott


  • Registered Users Posts: 1,835 ✭✭✭ garo


    Fantastic. Thank you. That is exactly what I wanted. I don't actually need a pi as I have a linux server that runs 24/7 but might get one to play with!


  • Registered Users Posts: 2,722 ✭✭✭ graememk


    garo wrote: »
    Fantastic. Thank you. That is exactly what I wanted. I don't actually need a pi as I have a linux server that runs 24/7 but might get one to play with!

    Careful.. they seem to multiply.. Let us know how you get on. Node red can control the most of the home automation stuff.

    I think i have 3-4 pi 1's and 2 pi 2's originally to run xbmc but now in a drawer.

    really have to get the one that can control the circ pumps on the back boiler running again, Ran like a champ with a python script using one wire temp sensors and some solid state relays... Ended up coding it direct on the pi and used a Mysql server to log temps and settings.

    yeah killed the sd card... and had no copies of the code.

    its back on the todo list and going to use MQTT now to publish temps and control of the device from node red... and take a backup!


  • Registered Users Posts: 85 ✭✭ Winterman1234


    graememk wrote: »
    Careful.. they seem to multiply.. Let us know how you get on. Node red can control the most of the home automation stuff.

    I think i have 3-4 pi 1's and 2 pi 2's originally to run xbmc but now in a drawer.

    really have to get the one that can control the circ pumps on the back boiler running again, Ran like a champ with a python script using one wire temp sensors and some solid state relays... Ended up coding it direct on the pi and used a Mysql server to log temps and settings.

    yeah killed the sd card... and had no copies of the code.

    its back on the todo list and going to use MQTT now to publish temps and control of the device from node red... and take a backup!

    Yea currently running emonpi here, had an old pi2 doing nothing. Only 2 current clamps so divertor is seen as export, so have to subtract divertor value at end of the month to get a true export value. Interested in your previous setup for back boiler, I would like to do some similar as stove and oil don't exactly like running here at the same time. Also have condenser boiler which is obviously very much oversized, only ever in condensing mode for 15minutes, followed by 45 minutes of cycling. So often thought there is something smarter I could do. Anyway wrong forum.


  • Registered Users Posts: 2,722 ✭✭✭ graememk


    Yea currently running emonpi here, had an old pi2 doing nothing. Only 2 current clamps so divertor is seen as export, so have to subtract divertor value at end of the month to get a true export value. Interested in your previous setup for back boiler, I would like to do some similar as stove and oil don't exactly like running here at the same time. Also have condenser boiler which is obviously very much oversized, only ever in condensing mode for 15minutes, followed by 45 minutes of cycling. So often thought there is something smarter I could do. Anyway wrong forum.

    Yeah Thats the reason for ordering a emontx, so i can monitor the solar gen, the grid import/export and the immersion useage.

    Sorry for a continuation of off topic, (pls advise on the actual right forum, but 1 more post)

    So in my Stove its big enough to heat the house, as long as its well fed! and when it really gets going the lag in the analogue pipe stats aren't responsive enough. (water can start to boil before pump reacts).

    My hot water tank has 3 coils, normally its 1 for solid, 1 for oil and the third is the solar tubes. - but i have both main coils connected to the stove.

    Stove has 4 water connections.

    Pair 1 goes to coil 1 via convection and also a pump for the rads

    Pair 2 goes to the second coil and is connected to a pump, prob would have run by convection but wanted to have more control over it.

    So i have thermometers on the input and return of the two coils. then programmed the rads one to kick in at 60c (and this set the limit of the water in the tank) and the other one to kick in when the flow was 10c above the return.

    the thermometers are DS18B20 i think openenergy explanination and that is natively supported on a Rpi if connected to the right place. ( appears as a file that you can just poll)

    These were zip tied to the pipes with a bit of thermal pad to help heat transfer to them.

    I think i had both run for a minimum of a few minutes to prevent them from kicking on and off.

    during the winter, as the fire never went out, i let the hot water tank heat up quite high (90c) and in the morning i was able to pull some of that heat out of the tank and into the rads to get them started in the morning. Could easily pull it down to 30-40C as we almost never shower in the morning.

    The relays are connected in parallel to the original pipe stats so there is always the mechanical failsafe to fall back on.

    I think that will be todays project, to get that back running again. should be simple enough to do it in python. Its been a few years since I touched python.

    Attached is a diagram of whats going on in my house


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  • Registered Users Posts: 1,835 ✭✭✭ garo


    I started the thread and you are welcome to keep going!

    @graememk: No backups tut tut!

    Sounds like you have an interesting setup. One question. If you let the boiler get up to 90 how did you prevent people scalding themselves on the hot water taps? Thermostatic mixing valve?

    PS: If you haven't come across it yet, this is a fantastic thread on boards with deezell some sort of expert in all kinds of heating systems.


  • Registered Users Posts: 2,722 ✭✭✭ graememk


    garo wrote: »
    I started the thread and you are welcome to keep going!

    @graememk: No backups tut tut!

    Sounds like you have an interesting setup. One question. If you let the boiler get up to 90 how did you prevent people scalding themselves on the hot water taps? Thermostatic mixing valve?

    PS: If you haven't come across it yet, this is a fantastic thread on boards with deezell some sort of expert in all kinds of heating systems.

    Yep thermostatic mixing valve came with the solar system. Although i do have my doubts on its effectiveness. It seems to be seized. (so a side order of careful the water is really hot...)

    Only the 2 of us in the house and it was only over night when the water was that hot. once the pumps kicked in, it drops pretty quickly.
    Also stopped the pumps starting in the middle of the night too

    5pm and ive got as far as finding a suitable sd card!

    Havent seen that thread will take a look!

    edit... ok im not starting in 2017... skipping to near the end!... also seeing a few familiar usernames...

    edit 2: It lives! this was originally created about 2013/2014 ish and its back and i can control the relays and read the temp sensors.
    , time to see if i can get it posting and reading from mqtt


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