Max sampling rate of pro 3em

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    • Autor

    Hello,

    what is the max sampling rate of Shelly pro 3em?

    I was wondering if I could use it in my application where I need a reading every 100-250 ms. I need the reading on only 1 channel that often, other 2 channels can get a reading much less often.

    Is that possible with this meter? (I assume a custom script would be required to achieve that).

    Thanks,
    Piotr

    how can I make the logginig in the exported csv datasheet every second ?
    I need a more specific data for long Periods logging (more than one hour)
    how can that be done ?

    thanks in advance

    Zitat von dekr994

    how can I make the logginig in the exported csv datasheet every second ?

    While that's not possible via the CSV export, if you have some skills and a SBC lying around, you can log the values every second.


    An example would be a simple bashscript that gets the data from the shelly every second and appends to a csv file:


    Bash
    #!/bin/bash
JQS='"\(.total_act_power),\(.a_act_power),\(.b_act_power),\(.c_act_power)"'
while true; do
   sleep 1 &
   values=$(curl -sS 'http://192.168.7.7/rpc/EM.GetStatus?id=0' | jq -r "$JQS")
   echo "$(date +%s),$values" >> log.csv
   wait
done


    There is various other ways to do this of course.
    You can probably do it with python on windows, using different API endpoints on the shelly, various things.