log reader not showing the actuall data

---

i read out some data from logfile, this works, but the values are not showing in realtime, i have a smart energy meter so i read out the pulses, and it creates one line into the logfile. my pulse meter have a solution from 10000 pules /kWh. every time a pulse is noticed it writes to the logfile, but pimatic dont show these values in realtime.

is there any solution to get this in realtime?
i have added to log devices that reads data from one file, is it possible that the data to often be updated from smart meter and to often will be read by the logreader?

i need every pulse, to make all my calculation into pimatic. the pulses are also updatet sometimes in 8 sec. sometimes in 3. but in my logfile they willl bei updatet even faster depending on what energy iam using.

with this programm i readout the data from arduino.

#!/usr/bin/env python


import time
import serial
ser = serial.Serial('/dev/ttyUSB0', 9600)

while 1:

    data = str(ser.readline())
    f = open("/root/log/kWhmeter.log","w")
    f.write(data)
    f.close()

may i can set an intervall to the logreader device. but i could not find anything about that

@p4co86 The frequency of pulses counted may be too high at times with high energy consumption. So one approach may be to accumulate pulse to units, i.e. in your case 10 pulses equal to 1 W/h.

If you also want to calculate something like “current power consumption” this is more difficult to achieve as you you need to count W/h (pulses) within a given time interval. I guess this can be done in python with a timer. Generally, I would program all the necessary calculations in a python script and then let the script update pimatic variables as appropriate.

Note beyond, you won’t get realtime values but the results may be good enough.

is it possible to grep the serial information via shell sensor ?

this is my output:

Cycle: 383 : Time: 920.00 ms : Verbrauch: 391.30 W

ok, now on every 10 pulse it enter some data to logfile. so it updates every 30 seconds. but no succes with that.

Cycle: 383 : Time: 920.00 ms : Verbrauch: 391.30 W
this is my logfile.

and this my logreader:

    {
      "id": "strom",
      "name": "Strom",
      "class": "LogWatcher",
      "file": "/root/log/kWhmeter.log",
      "xAttributeOptions": [
        {
          "name": "Verbrauch",
          "displaySparkline": false
        },
        {
          "name": "Cycle",
          "displaySparkline": false
        }
      ],
      "attributes": [
        {
          "name": "Verbrauch",
          "type": "number",
          "unit": "W"
        },
        {
          "name": "Cycle",
          "type": "number",
          "unit": ""
        }
      ],
      "lines": [
        {
          "match": "Verbrauch: (.+)",
          "Verbrauch": "$1"
        },
        {
          "match": "Cycle: (.+)",
          "Cycle": "$1"
        }
      ]
    },