>> El Tue, 26 Mar 2024 20:53:24 +0000, Mark Olson escribió:
>>
>>>> https://www.amazon.com/Waveshare-Industrial-USB-RS485-Transceiving/
dp/
>> B081NBCJRS
>>>
>>> It's cheap enough that I'd take a chance on that

Heh. Now for sale.

--
Paul.

https://paulc.es

El Tue, 26 Mar 2024 13:27:03 +0000, Theo escribió:

> There are other projects which are more focused on logging rather than
> controlling things. https://openenergymonitor.org/ is one. They also
> sell hardware if what you have isn't sufficient.

Presumably this: https://shop.openenergymonitor.com/single-phase-6-
channel-energy-monitoring-emonpi2/

With my existing pi and no voltage sensor costs GBP144.

Hang on, current sensors are extra. So, 50x2 + 20x1 = GBP180.

Hmm, will have to think about that.

--
Paul.

https://paulc.es

El Wed, 03 Apr 2024 11:34:53 +0000, Paul Carmichael escribió:

> El Tue, 26 Mar 2024 13:27:03 +0000, Theo escribió:
>
>> There are other projects which are more focused on logging rather than
>> controlling things. https://openenergymonitor.org/ is one. They also
>> sell hardware if what you have isn't sufficient.
>
> Presumably this: https://shop.openenergymonitor.com/single-phase-6-
> channel-energy-monitoring-emonpi2/
>
> With my existing pi and no voltage sensor costs GBP144.
>
> Hang on, current sensors are extra. So, 50x2 + 20x1 = GBP180.
>
> Hmm, will have to think about that.

Just thinking, it may be damned expensive, but it would give me 3
readings instead of one. Total draw, from mains and from inverter.

--
Paul.

https://paulc.es

Paul Carmichael <wibbleypants@gmail.com> wrote:
> El Wed, 03 Apr 2024 11:34:53 +0000, Paul Carmichael escribió:
>
>> El Tue, 26 Mar 2024 13:27:03 +0000, Theo escribió:
>>
>>> There are other projects which are more focused on logging rather than
>>> controlling things. https://openenergymonitor.org/ is one. They also
>>> sell hardware if what you have isn't sufficient.
>>
>> Presumably this: https://shop.openenergymonitor.com/single-phase-6-
>> channel-energy-monitoring-emonpi2/
>>
>> With my existing pi and no voltage sensor costs GBP144.
>>
>> Hang on, current sensors are extra. So, 50x2 + 20x1 = GBP180.
>>
>> Hmm, will have to think about that.
>
> Just thinking, it may be damned expensive, but it would give me 3
> readings instead of one. Total draw, from mains and from inverter.

Do you have a smart meter? Mine reports total kWh at regular intervals
on 915 MHz, I have monitored it using a Raspberry Pi with a DVB-T
RTL-SDR dongle. Also my water meter, both made by Itron...

El Mon, 08 Apr 2024 12:43:51 +0000, Mark Olson escribió:

> Do you have a smart meter? Mine reports total kWh at regular intervals
> on 915 MHz, I have monitored it using a Raspberry Pi with a DVB-T
> RTL-SDR dongle. Also my water meter, both made by Itron...

I do have a smart meter. But I wouldn't have a clue how to get info from
it. Perhaps I'll take a look later.

--
Paul.

https://paulc.es

Paul Carmichael <wibbleypants@gmail.com> wrote:
> El Mon, 08 Apr 2024 12:43:51 +0000, Mark Olson escribió:
>
>> Do you have a smart meter? Mine reports total kWh at regular intervals
>> on 915 MHz, I have monitored it using a Raspberry Pi with a DVB-T
>> RTL-SDR dongle. Also my water meter, both made by Itron...
>
>
> I do have a smart meter. But I wouldn't have a clue how to get info from
> it. Perhaps I'll take a look later.

The project is called RTLAMR, apparently it's for Itron meters only?

Wasn't too difficult to make and install on a Pi.

https://github.com/bemasher/rtlamr

Seems there is a Home Assistant integration as well.

I'm guessing there are similar programs for other brands of smart meters.