get-P1power

PRTG sensor for power grid meeter

Swedish implementation

P1 port from DSMR P1 Companion Standard

Protocol

SerialPort = '/dev/ttyUSB0'
BaudRate=115200
Parity=None
StopBits=One
DataBits = 8
ByteSize = 8
XonXoff = Off

My soloution

Raspberry and arms length from whe power meeter. USB - P1 Energy meeter Landis + Gyr E350

PRTG

Trigger data collection, db and visualisation

Shell script to start data collection by powershell

Powershell code

Could not get .NET new-Object System.IO.Ports.SerialPort to get data so instead I used linux command CU

sudo apt-get install cu
cu -l /dev/ttyUSB0 -s 115200 -E%

Dumped output to a temporary file and parse the output and create json output readable in PRTG

Bonus sensor

I like to have an easy metric to compare the total energy consumption day to day. Wrote an 'XML Custom EXE/Script' sensor using PRTG API to collect historical data and use a factor to interpolate 24h consumption.