Website Output to Pimatic Variables

---

Hello,

i have a Buderus Heating System with a KM200 Web Gateway. The Data and Querys are encrypted but some smart guys managed to query it (see (german) https://forum.fhem.de/index.php?topic=25540.0)
I put the decoding (km200.php) on my pi with apache and php and query my heater.
Output is as following

## http://192.168.0.11:8080/km200.php
/system/brand;Buderus;/gateway/DateTime;2016-08-02T13:56:16;/gateway/versionFirmware;01.09.04;/gateway/instAccess;off;/heatingCircuits/hc1/operationMode;auto;/heatingCircuits/hc1/roomtemperature;23.1;/heatingCircuits/hc1/status;ACTIVE;/solarCircuits/sc1/status;INACTIVE;/solarCircuits/sc1/solarYield;0;/solarCircuits/sc1/collectorTemperature;0;/solarCircuits/sc1/pumpModulation;0;/heatSources/actualPower;0;/heatSources/actualCHPower;0;/heatSources/actualDHWPower;0;/heatSources/flameStatus;off;/heatSources/CHpumpModulation;0;/heatSources/gasAirPressure;0;/heatSources/systemPressure;1.2;/heatSources/returnTemperature;30.1;/heatSources/systemPressure;1.2;/system/healthStatus;ok;/system/sensors/temperatures/outdoor_t1;19.5;/system/sensors/temperatures/supply_t1;29.8;/system/sensors/temperatures/hotWater_t1;-3276.8;/system/sensors/temperatures/hotWater_t2;52.9;/system/sensors/temperatures/return;30.1;/system/appliance/numberOfStarts;50178;

Now i like to get some of the readings displayed in pimatic and refreshed every x Minutes

Readings:

• /heatingCircuits/hc1/roomtemperature;23.1 (Room Temp. Living Room)
• /system/sensors/temperatures/outdoor_t1;19.5 (Außentemperatur)
• /heatSources/systemPressure;1.2 (Wasserdruck)
  …

Whats the best way to get the data to pimatic. I’m a noob programmer (bit LUA, bit bash) and would try to fetch the data with “curl” and extract the data with regex. Then send the values to pimatic via API.

Is there a smarter way?

try the following in your command line:

curl http://192.168.0.11:8080/km200.php  grep roomtemperature; | cut -f2 -d | cut -f1 -d";"

this should give you the value 23.1

Then use a Shell Sensor to show the variable in pimatic.

{
  "id": "temperature",
  "name": "Room Temperature",
  "class": "ShellSensor",
  "attributeName": "temperature",
  "attributeType": "number",
  "attributeUnit": "°C",
  "attributeAcronym": "Room",
  "command": "curl http://192.168.0.11:8080/km200.php  grep roomtemperature; | cut -f2 -d | cut -f1 -d\";\""
}

Thank you for your reply. I managed it with a bash script which receives the values and sends it to pimatic

#!/bin/bash
parse=$(curl --silent http://192.168.0.11:8080/km200.php)
systempressure=$(grep -oP '(?<=/heatSources/systemPressure;).*?(?=;)' <<< $parse)
outdoortemperature=$(grep -oP '(?<=/system/sensors/temperatures/outdoor_t1;).*?(?=;)' <<< $parse)
roomtemperature=$(grep -oP '(?<=/heatingCircuits/hc1/roomtemperature;).*?(?=;)' <<< $parse)
hotwatertemperature=$(grep -oP '(?<=/system/sensors/temperatures/hotWater_t2;).*?(?=;)' <<< $parse)
flamestarts=$(grep -oP '(?<=/system/appliance/numberOfStarts;).*?(?=;)' <<< $parse)


curl --silent \
  -X PATCH \
  --header "Content-Type:application/json" \
  --data '{"type": "value", "valueOrExpression": '$systempressure'}' \
  --user "user:password" \
  http://192.168.0.11/api/variables/heizung_systempressure



curl --silent \
  -X PATCH \
  --header "Content-Type:application/json" \
  --data '{"type": "value", "valueOrExpression": '$outdoortemperature'}' \
  --user "user:password" \
  http://192.168.0.11/api/variables/heizung_outdoortemperature


curl --silent \
  -X PATCH \
  --header "Content-Type:application/json" \
  --data '{"type": "value", "valueOrExpression": '$roomtemperature'}' \
  --user "user:password" \
  http://192.168.0.11/api/variables/heizung_roomtemperature

curl --silent \
  -X PATCH \
  --header "Content-Type:application/json" \
  --data '{"type": "value", "valueOrExpression": '$hotwatertemperature'}' \
  --user "user:password" \
  http://192.168.0.11/api/variables/heizung_hotwatertemperature


curl --silent \
  -X PATCH \
  --header "Content-Type:application/json" \
  --data '{"type": "value", "valueOrExpression": '$flamestarts'}' \
  --user "user:password" \
  http://192.168.0.11/api/variables/heizung_flamestarts

The km200 module is not stable. If you query it very frequently and you have to reboot it.
So i fetch the data once and send it to pimatic
The script runs every 10 min. via crontab

well you can also use the logreader device, but your solution looks good to me nice one!