reading water meter

[Simon Eigeldinger]

Hi all,

Our water department over here has now installed new water meters which
send their data over radio.
Has someone started to monitor their water meter in Europe?
I guess we are using a water meter that uses the m-bus protocol which
works on the 433 or 868 mhz frequency.

Greetings,
Simon

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[Benjamin Larsson]

On 2018-06-06 21:18, Simon Eigeldinger wrote:
> Hi all,
>
> Our water department over here has now installed new water meters which
> send their data over radio.
> Has someone started to monitor their water meter in Europe?
> I guess we are using a water meter that uses the m-bus protocol which
> works on the 433 or 868 mhz frequency.
>
> Greetings,
> Simon

Try getting some sample signals and we'll see what can be done. There is
specifications for this.

https://en.wikipedia.org/wiki/Meter-Bus

MvH
Benjamin Larsson

[Tommy Vestermark]

Hi Simon,

There is now some support for receiving M-Bus signals in this branch: https://github.com/vestom/rtl_433/tree/m-bus_rebase waiting to be merged.

It works for receiving the low level data from Mode C transmitters and specifically tested with some water and heating meters from Kamstrup.

If you could add some additional signals, it would be possible to verify the code  and maybe fix support for some of the other modes. Also see https://github.com/merbanan/rtl_433_tests

Thanks.

Tommy

[Simon Eigeldinger]

Hi Tommy,

I will try to get some data out.
unfortunately i can't read the display nor do i know where the device
sits but i will to try to get as much info as possible.
What I know at the moment is that the water meters over here are from a
company called Diehl Metering.
They also seem to use a kind of usb-dongle and software to receive the
data of the meters which is sent a few times per minute.

Which command would be apropriate to receive useful data?

Would be

rtl_433 -D -a -A -I 1

be a good try?

i will see if i can find out the model and the frequency it operates on.
but i guess somewhere around 433 mhz.

Greetings,
Simon