I need to do a simple reading and recording of a sub meter 4 times per day. The reading will be transmitted via ethernet cable from the Siemens Sentron PAC3200 to either an Arduino or a Raspberry Pi.
I was thinking Arduino would be simpler but I doubt that it can do 4 readings per day at certain times; 7 AM,11 AM, 5 PM and 7 PM. It needs room to store these 4 numbers and a clock to know the time. ANd then it would be excellent if it could run for a month before needing to be uploaded to a spreadsheet. So batteries could keep it running in a power failure.
I could run this off of my desktop computer which is never off, but occasional power outages require a restart unless I invest in a UPS.
If I used the Pi, I could use a battery backup to keep it running in case of power outage. It would also have more memory to write 160 reading to.
This is a bit over my head but I have been computing since early 70s.
I even have a Timex-Sinclair 32 K BASIC computer, but I don't like the storage system that it used, which was an audio cassette.