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Temp and voltage

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VK1HF
VK1HF Member ✭✭
in FLEX-8000 Signature Series

Seems that the 8x00 is aware of its own internal temp and supply voltage. I see that when connecting via smartsdr software. Is there a way I can easily access this data from a raspberry pi or Arduino which is at the site sitting alongside the 8400? Via USB or API or some way?

My setup will be..:

  • 8400 will be a 2 hr drive from my place
  • Using maestro C for the shack end.
  • No 'computer' involved (locally or remotely)

Comments

  • David Decoons, wo2x
    David Decoons, wo2x Member, Super Elmer Moderator
    Options

    load Node Red server on the Pi with requisite nodes then load the Flex Radio flow. It contains voltage, fan and temp readings.

    More info at

    https://groups.io/g/nodered-hamradio

  • VK1HF
    VK1HF Member ✭✭
    Options

    I'm seeking to make the setup as simple as possible at the remote site. I may go down the node red path at some point (appreciate the idea, had forgotten about that tbh!) but for the moment just seeking a pointer on how to get this data simply, directly, if possible. I can easily make an API call from python on the Pi etc.

  • VK1HF
    VK1HF Member ✭✭
    Options

    Just had a look at node red...does it just use CAT commands to get all of its data?

    Im new to CAT but this looks good if so!

  • Mick W8BE
    Mick W8BE Member ✭✭✭
    Options

    Node-RED flows typically use the TCP API (FlexRadio nodes) or the SmartSDR API (FRStackWebApi). You can fetch data with CAT but it does not make sense as it is limited compared to the APIs.

  • Rich M5RIC
    Rich M5RIC Member ✭✭✭
    edited January 2025
    Options

    SDR monitor is a nice little app that connects to your flex and gives a small window for temp and voltage.

    image.png

    https://k9dur.us/downloads/SDRMonitor/SDRMonitor.pdf

    https://k9dur.us/downloads/SDRMonitor/SDRMonitorSetup.exe

    This does need a PC so node red is probably your best and easiest bet, the flows are already written for you so its just a case of some config to get up and running.

    73

    Rich

  • VK1HF
    VK1HF Member ✭✭
    Options

    Thanks W8BE.. exactly the pointer I am after!

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    Options

    Give NodeRed a try. It isn't as hard as you think and it really opens the door to a lot of options.

    Couple that with TailScale for the VPN stuff and will have a lot of growth options.

    I use KMTronic Temperature sensors and they are invaluable as they are also web based.

    This is my very 'dated' control console running on a PI4. Check out the temperatures.

    image.png

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