You can use a nice module for monitoring devices
In the attachments, the image from the module operation
first of all, you need to set the module address before starting
address (1) = 192
address (2) = 168
address (3) = 1
address (4) = 1
address (5) = 0
My module is very accurate checked with Power Analyzer Norma 4000
The serial.available () command receives hex for a very long time
about 2 seconds including counting the checksum
I am asking for opinions, what can I do better
was translated to Google