Hi.
I have APSystems ECU-C and I have been using the integration found at
The thing is that this integration does not provide export/import information that can be very useful to automate optional energy hungry devices like the AC.
So I have created a simple script that scrapes ECU-C local webpage to obtain that info. This script is running in crontab each 5 minutes (ECU-C does not updates the info more often that that) and creates a file in a private network web server. Then, I have sensors in Home Assistant that retrieves that file to populate my dashboard.
It is my first Python script and very beginner with HA so everything is very rudimentary. I am sure you can provide me ideas to improve it. 
Scrapper (/home/apsystems_ecu_scrapper.py):
#coding=utf-8
import urllib2
import json
from argparse import Namespace
#Set ECU-C IP
ECU_IP = "192.168.1.25"
#Get the Power Graph webpage from ECU-C
resp = urllib2.urlopen("http://" + ECU_IP + "/index.php/meter/meter_power_graph")
page = resp.read()
#Original ECU-C page
#print (page)
#Extracts the javascript that contains the graph data
initialPosition = page.find("$('#myChart').highcharts(")
initialPosition = initialPosition + 25
endPosition = page.find(");", initialPosition)
#Extracted javascript data
data = page[initialPosition:endPosition]
#print (data)
#Cleans the data removing all invalid stuff for a JSON object
data = data.replace("//副标题设置", "")
data = data.replace("右侧说明", "")
data = data.replace("subtitle", "'subtitle'")
data = data.replace("text: '',", "'text': ''")
data = data.replace("legend", "'legend'")
data = data.replace("layout", "'layout'")
data = data.replace("align", "'align'")
data = data.replace("verticalAlign", "'verticalAlign'")
data = data.replace("borderWidth", "'borderWidth'")
data = data.replace("series", "'series'")
data = data.replace("name", "'name'")
data = data.replace("// Production A", "")
data = data.replace("//Production CT 1A", "")
data = data.replace("// Production B", "")
data = data.replace("//Production CT 1B", "")
data = data.replace("//Production CT 1C", "")
data = data.replace("// Consumption A", "")
data = data.replace("+ Consumption CT 2A", "")
data = data.replace("// Consumption B", "")
data = data.replace("//Production CT 1B + Consumption CT 2B", "")
data = data.replace("+ Consumption CT 2B", "")
data = data.replace("// Consumption C", "")
data = data.replace("+ Consumption CT 2C", "")
data = data.replace("// Imported/Exported A", "")
data = data.replace("//Consumption CT 2A", "")
data = data.replace("// Imported/Exported B", "")
data = data.replace("//Consumption CT 2B", "")
data = data.replace("// Imported/Exported C", "")
data = data.replace("//Consumption CT 2C", "")
#Converts data arrays to strings
#data = data.replace("data: ", "'data': '")
#data = data.replace(",]", "]'")
#OR fix data arrays format as pure numbers arrays
data = data.replace("data: ", "'data': ")
data = data.replace(",]", "]")
#Changes all ' for "
data = data.replace("'", "\"")
#Fixes latest , because the json is malformed
lastCommaPosition = data.rfind(",")
data = data[:lastCommaPosition] + data[lastCommaPosition + 1:]
#Final data json that has valid format
#print (data)
jsonObject = json.loads(data, object_hook=lambda d: Namespace(**d))
#Get Produced values
producedDataValues = jsonObject.series[0].data
#Get Consumed values
consumedDataValues = jsonObject.series[3].data
#Get Exported values
exportedDataValues = jsonObject.series[6].data
#Get latest position for most recent value
latestProducedDataValue = producedDataValues[len(producedDataValues)-1]
latestConsumedDataValue = consumedDataValues[len(consumedDataValues)-1]
latestExportedDataValue = exportedDataValues[len(exportedDataValues)-1]
#Generate JSON
print "{"
print ' "produced": "' + str(latestProducedDataValue[1]) + '",'
print ' "consumed": "' + str(latestConsumedDataValue[1]) + '",'
print ' "exported": "' + str(latestExportedDataValue[1]) + '"'
print "}"
Shell script to generate the file (/usr/bin/generatePower.sh)
#!/bin/sh
python /home/apsystems_ecu_scrapper.py > /var/www/html/power.txt
Crontab entry:
0,5,10,15,20,25,30,35,40,45,50,55 * * * * generatePower.sh
Home Assistant Sensors (configuration.yaml) (192.168.1.200 is my private web server IP):
rest:
- resource: http://192.168.1.200/power.txt
verify_ssl: false
sensor:
- name: Electricidad exportada
value_template: "{{ value_json.exported }}"
- name: Electricidad generada
value_template: "{{ value_json.produced }}"
- name: Electricidad consumida
value_template: "{{ value_json.consumed }}"
Example in Dashboard:
Maybe you find it useful.
Regards.
