openHAB and Fireplace Rules Part 5

Now that everything is humming along we can make some fancy rules. This includes creating a flexible timer and auto mode based on room temperature. I went through a lot of iterations but ended up with some nice rules that work well. I will post the current version here but any updates will be maintained on Github.

Timer

 
Number  tempFire_TimerValue     "Fireplace Timer [%d min(s)]"    (gHeating)
Switch  tempFire_TimerSwitch    "Start Timer"     (gHeating)
DateTime tempFire_TimerStart    "Timer stated at [%1$tr]"        (gHeating)
Number tempFire_TimerElapsed    "Time elapsed [%d min(s)]"       (gHeating)
Number tempFire_TimerLeft       "Time remaining [%d min(s)]"     (gHeating)
 

Sitemap

 
 Setpoint item=tempFire_TimerValue minValue=5 maxValue=60 step=5
 Switch  item=tempFire_TimerSwitch
 Text item=tempFire_TimerStart   visibility=[tempFire_TimerSwitch==ON] Text item=tempFire_TimerElapsed visibility=[tempFire_TimerSwitch==ON] Text item=tempFire_TimerLeft    visibility=[tempFire_TimerSwitch==ON]
 

Rules

 
rule "Fireplace Timer"
when
        Item tempFire_TimerSwitch changed from OFF to ON
then
        val fireMin = (tempFire_TimerValue.state as DecimalType).intValue
        val counter = 0
        sendCommand(tempFire_Web, ON)
        postUpdate(tempFire_TimerStart, new DateTimeType())
        while(counter < fireMin){
                Thread::sleep(60000)
                counter = counter + 1
                fireMin = (tempFire_TimerValue.state as DecimalType).intValue
        }
        sendCommand(tempFire_TimerSwitch, OFF)
        sendCommand(tempFire_Web, OFF)
        //FireplaceTimer = createTimer(now.plusMinutes(fireMin))[
        //      sendCommand(tempFire_TimerSwitch, OFF)
        //      sendCommand(tempFire_Web, OFF)
        //]end
rule "Stop timer"
when
        Item tempFire_TimerSwitch changed from ON to OFF
then
        sendCommand(tempFire_Web, OFF)
end

rule "Time left"
when
        Item tempFire_TimerSwitch changed from OFF to ON
then
        var start = now.millis
        while(tempFire_TimerSwitch.state==ON){
                val timerMin = (tempFire_TimerValue.state as DecimalType).intValue
                val dt1 = ((now.millis-start)/1000/60)
                postUpdate(tempFire_TimerElapsed, dt1)
                val dt2 = timerMin - dt1
                postUpdate(tempFire_TimerLeft, dt2)
                Thread::sleep(60000)

        }
end
  
 

I switched from using the timer function to writing my own so that I can update the time left if someone wants to add time to the timer. Beforehand, if you added time it wouldn’t do anything. Now it checks every iteration. Much better.

Auto Mode

 
Number  tempFire_Setpoint "Set Temperature [%.1f °F]"      (gHeating)
Switch  tempFire_AutoSwitch     "Auto Mode"       (gHeating)
 

Switch item=tempFire_AutoSwitch
Setpoint item=tempFire_Setpoint minValue=60 maxValue=75 step=1

rule "Fireplace Auto Control"
when
        Time cron "0 0/5 * 1/1 * ? *" OR
        Item temp_livingroom received update
then
        if(tempFire_AutoSwitch.state == ON){
                if(tempFire_Web.state==ON){
                        if(temp_livingroom.state >= tempFire_Setpoint.state){
                                tempFire_Web.sendCommand(OFF)
                        }
                }
                else if(temp_livingroom.state < tempFire_Setpoint.state){
                                tempFire_Web.sendCommand(ON)
                }
        }
        else {
        }

end

rule "Start auto mode"
when
        Item tempFire_AutoSwitch changed from OFF to ON
then
        tempFire_Web.sendCommand(ON)
end

rule "Stop auto mode"
when
        Item tempFire_AutoSwitch changed from ON to OFF
then
        if(tempFire_TimerSwitch.state == OFF){
                tempFire_Web.sendCommand(OFF)
        }
end