
I ordered one of these to try and it seemed to work well so I ordered more. While the vendor provides a simple program to read a device and set its device address. To read more than one device you must either buy a program or write your own. I tried several "try before you buy" programs and none of them worked, so I decided to write my own. I've never written programs in Python before, but since the open source library I found was in Python, I gave it a try. My program reads values from more than one device and displays the data in my shell session, but that seems too slow to me. I'll look for better software options to read the data and store it in a database to later draw graphs etc. I want to put one of these on each of my home circuits and then draw diagrams to visualize when and where energy was used. One more thing: I used an unused pair of my phone line that goes to each room in my house to transmit data from 2 units in my fuse box to each room in my house so I can plug a USB adapter into that pair. phone line. When the other devices I ordered arrive, I'll find out how well my methods of connecting multiple devices work. Works very well for me with only two and I recommend this to anyone who enjoys writing their own programs to use energy data.

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