OpenHAB2

• https://mysmarthomeweb.wordpress.com

/etc/apt/sources.list.d/openhab2.list

cat > /etc/apt/sources.list.d/openhab2.list <<EOF
deb  [trusted=yes] https://openhab.ci.cloudbees.com/job/openHAB-Distribution/ws/distributions/openhab-offline/target/apt-repo/ /
deb  [trusted=yes] https://openhab.ci.cloudbees.com/job/openHAB-Distribution/ws/distributions/openhab-online/target/apt-repo/ /
EOF

wget -qO - 'http://www.openhab.org/keys/public-key-snapshots.asc' | sudo apt-key add -
sudo apt update
apt install openjdk-8-jre

apt install openhab2-online
 
sudo systemctl enable openhab2.service
sudo systemctl start openhab2.service
sudo systemctl status openhab2.service

• http://localhost:8080

/usr/share/openhab2/runtime/karaf/bin/client

show features

feature:list | grep network

interesting features

feature:install openhab-runtime-compat1x
 
feature:install openhab-transformation-regex
feature:install openhab-binding-exec
feature:install openhab-persistence-rrd4j
 
feature:install openhab-ui-habmin
feature:install openhab-ui-hapanel
 
feature:install openhab-action-telegram
 
feature:install openhab-binding-network
# feature:install openhab-binding-lgtv

openhab> things list
yahooweather:weather:158197f6007 (Type=Thing, Status=ONLINE, Label=Weather Information, Bridge=null)
 
openhab> items list
yahooweather_weather_158197f6007_temperature (Type=NumberItem, State=2, Label=Temperature, Category=Temperature)
yahooweather_weather_158197f6007_humidity (Type=NumberItem, State=77, Label=Humidity, Category=Humidity)
yahooweather_weather_158197f6007_pressure (Type=NumberItem, State=30308.19, Label=Pressure, Category=Pressure)
 
openhab> links list
yahooweather_weather_158197f6007_temperature -> yahooweather:weather:158197f6007:temperature
yahooweather_weather_158197f6007_humidity -> yahooweather:weather:158197f6007:humidity
yahooweather_weather_158197f6007_pressure -> yahooweather:weather:158197f6007:pressure

console

# change log level
log:set DEBUG
 
# clear 
log:clear
 
# show continuos tail
log:tail

Enable rrd4j binding

/etc/openhab2/services/rrd4j.cfg

ctr5min.def=COUNTER,900,0,U,300
ctr5min.archives=AVERAGE,0.5,1,365:AVERAGE,0.5,7,300
# ctr5min.items=systeminfo_computer_15819c96492_cpu_load,yahooweather_weather_158197f6007_temperature,yahooweather_weather_158197f6007_humidity,yahooweather_weather_158197f6007_pressure

/etc/openhab2/persistence/rrd4j.persist

// persistence strategies have a name and a definition and are referred to in the "Items" section
Strategies {
    everyHour : "0 0 * * * ?"
    everyDay  : "0 0 0 * * ?"
 
    // if no strategy is specified for an item entry below, the default list will be used
    default = everyChange
}
 
/* 
 * Each line in this section defines for which item(s) which strategy(ies) should be applied.
 * You can list single items, use "*" for all items or "groupitem*" for all members of a group
 * item (excl. the group item itself).
 */
Items {
    // persist all items once a day and on every change and restore them from the db at startup
    * : strategy = everyChange, everyDay, restoreOnStartup
 
    // additionally, persist all temperature and weather values every hour
    Temperature*, Weather* : strategy = everyHour
}

/ect/openhab2/services/addons.cfg

package = demo

items/cpu.items

// create an item from another channel item "items list"
Number Cpu "Cpu [%.0f]" (signal) { channel="systeminfo:computer:15819c96492:cpu#load" }
 
// fetch data from script every 2 seconds (install exec binding and regex transformation)
Number TestLoad "Test load [%.0f]" (signal) { exec="<[/etc/openhab2/test.sh:1000:REGEX((.*?))]"

rules/cpu.rules

import org.openhab.core.library.types.*
import org.openhab.core.persistence.*
import org.openhab.model.script.actions.*
 
val Timer timer = null
val Timer waitTimer = null
val int sleepMinutes = 1
 
rule "CPU too high"
when
    Item Cpu changed
then
    if (Cpu.state > 40) {
      if (timer == null) {
        // watch cpu for 5 seconds 
	timer = createTimer(now.plusSeconds(5)) [|
    	  val message = "CPU troppo alta: " + Cpu.state.toString() + ". Prossimo messaggio in "+ sleepMinutes.toString() + " minuti"
          sendTelegram("bot1", message)
	  logWarn("home", message)
 
	  waitTimer = createTimer(now.plusMinutes(sleepMinutes)) [| 
	     timer = null 
	     sleepMinutes = sleepMinutes*2
          ]
	]
      }
    } else {
      if(timer != null) {
         timer.cancel
         timer = null
         sleepMinutes = 1
      }
    }
end