On 12/04/2018 12:51, The Nomad wrote:
On Thu, 12 Apr 2018 12:37:06 +0100, newshound
wrote:

For reasons I won't bore you with, I'm interested in building a cheap,
simple data logger to monitor mains voltage, ideally two channels (live
to earth and neutral to earth). In the dim and distant past I have
designed and built such things more or less from scratch, but surely
someone has already done this.

I havn't used either Arduino or Pi before, but I assume one or other
would be the obvious starting point.

However ATM google isn't giving me a strong lead. Thoughts?

A quick google came up with:

https://openenergymonitor.org/forum-archive/node/58.html


I have an openenergy Arduino. It sends data to a Raspberry Pi running
Openenergy software. For a while I was using a public Openenergy
server. Readings are recorded every second. I record live to neutral
voltage. To record other voltages I would need an irregular 13 amp socket.

If I am away from home in the winter I can see whether my boiler has
been running.

--
Michael Chare