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Thread: My HGI80 equivalent Domoticz setup without HGI80

  1. #151
    Automated Home Jr Member
    Join Date
    Feb 2018
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    Hi @dty

    I haven't been able to get "sending" working with your firmware running on an arduino nano (using @petep's nano files). Receiving works absolutely fine. I've tried various baud rates from 78600 all the way to 250000, but still nothing on the send. As soon as I install @petep's fifo branch, sending works immediately.

    However, pete's fifo branch does not seem to receive anything from my HCC80 ufh controller, whereas your firmware immediately receives heat demand data from the HCC80 (including the different zones being controlled by the HCC80).

    Do you have any suggestions of things I could try to get sending working with your firmware? Unfortunately I don't know enough about how the radio system works to make a guess as to what to tweak etc.

    TIA.

  2. #152
    Automated Home Jr Member
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    Apr 2006
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    Doing some research could it be that level shifting is required between the 5v Nano and the 3.3v CC1101 ? have a look at this diagram on Simon Monks github https://github.com/simonmonk/CC1101_arduino

    some folks saying its necessary which I could see being an issue

  3. #153
    Automated Home Jr Member
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    Feb 2018
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    Thanks for the headsup on this. I'll look into it further when I get a bit more time.

  4. #154
    Automated Home Lurker
    Join Date
    Nov 2014
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    Quote Originally Posted by smar View Post
    No, I'm running on an Arduino. Heat demand readout is given directly by the python script, but I do use openHAB (another home automation system, similar idea to Domoticz) to log/graph the data, and also for controlling specific evohome events, such as turning heating off when no one at home for an extended period of time etc. As the data is being published onto MQTT, you should be able to use it with almost any home automation system.
    Hi smar,

    Would you be able to share your full code and which arduino and c1101 units you used including how you wired it?

    I ordered an Arduino Nano and C1101 unit(the green square one on aliexpress) and would love to get this running.

    Heating season has started again and i want to know which zone is doing what, maybe we can reduce our gas usage a little!

    I have no good skills in coding unfortunatly!

    Thanks!

    Ps: i didnt recieved any notifications so i hope i Will get them now!

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