HC3 rel. Humidity

[Guest muhmuh]

Hello,

im looking for a HC3 Script which switch a Bathroom Fan on/off with dependency relative humindity.

I found a HC2 Script from kapitano1 (https://forum.siio.de/t/lua-taupunktlueftung-im-keller/5206)

My Lua skill is very low, so i tried to change the code to hc3 and add my ids.

The script will run correctly when humidInAbs - humidOutAbs > 1 but the switch off fan code is not correct.

And sorry for my english, but it is not my native language; i tried my best.

Can anyone correct it please?
Debug:
28.08.2020] [12:44:00] [DEBUG] [SCENE218]: - 28.08.2020 12:44:00 AußenTemp 21.59°C rel. Feuchtigkeit 57.0%
[28.08.2020] [12:44:00] [DEBUG] [SCENE218]: - 28.08.2020 12:44:00 absolute Luftfeuchtigkeit Außen 10.969697021231g/m³
[28.08.2020] [12:44:00] [DEBUG] [SCENE218]: - 28.08.2020 12:44:00 InnenTemp 25.4°C rel. Feuchtigkeit 51.0%
[28.08.2020] [12:44:00] [DEBUG] [SCENE218]: - 28.08.2020 12:44:00 absolute Luftfeuchtigkeit Innen 12.211619119493g/m³
[28.08.2020] [12:49:00] [ERROR] [SCENE218]:

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[SmartHomeEddy 878]

2 minutes ago, ErikP said:

which script are you referring to here? Can you share?

That is a specific script for my home situation based on the absolute humidity algorithm of muhmuh. 

[SmartHomeEddy 878]

These are the quickapp variables you need to define:

 

tOutside

hOutside

tInside (if not, the current room temperature sensor will be used)

hInside (if not, the current room humidity sensor will be used)

pressure (if not, then 1013 will be used)

switch (your fan) 

hygro_hysteresis_up (if not, then 1)

hygro_hysteresis_dn (if not, then 2)

 

if you use the buienradar weather air pressure child device, you need to change the code a bit. Here the response gets multiplied by 10 to go from kPa to Millibar. But the buienradar Weather is in hPA, so doesn’t need the * 10

 

 

function QuickApp:check()

    local pressure = 1013 -- Standard sea level pressure is 1013 hPa

    if pressureId then

        pressure = fibaro.getValue(pressureId, "value") * 10 -- kPa to Millibar

    end

 

 

 

 

Edited November 11, 2022 by SmartHomeEddy

[ErikP 5]

11 minutes ago, SmartHomeEddy said:

If you don’t add them in the quickapp variable, the default temperature and humidity sensor of the room where the quickapp is in, will be used.

 

local room = api.get("/rooms/" .. (fibaro.getRoomID(self.id) or 0))

    if room ~= nil then

        temperatureInsideId = room.defaultSensors.temperature

        humidiryInsideId = room.defaultSensors.humidity

    end

 

 

 

 

 

Ah ok, clear, thanks. Unfortunately that does not seem to work.

I got this back from console debug:
[WARNING] [QUICKAPP790]: Variable tInside not found[11.11.2022] [22:03:21] [WARNING] [QUICKAPP790]: Variable hInside not found

Though I have set default humidity and temperature sensor of that room...

[SmartHomeEddy 878]

Yes, the code checks for the quickapp variable, if not, warns and uses the room defaults. So nothing to worry. Maybe the warning should be … not found, using default sensor … (id and name)

 

First here:

 

local room = api.get("/rooms/" .. (fibaro.getRoomID(self.id) or 0))

    if room ~= nil then

        temperatureInsideId = room.defaultSensors.temperature

        humidiryInsideId = room.defaultSensors.humidity

    end

 

and then here to check for the quickapp variable

 

local _temperatureInsideId = tonumber(self:getVariable("tInside"))

    if _temperatureInsideId then

        temperatureInsideId = _temperatureInsideId

    elseif not temperatureInsideId then

        self:warning("tInside is not configured")

        return

    end

 

    local _humidiryInsideId = tonumber(self:getVariable("hInside"))

    if _humidiryInsideId then

        humidiryInsideId = _humidiryInsideId

    elseif not humidiryInsideId then

        self:warning("hInside is not configured")

        return

    end

Edited November 12, 2022 by SmartHomeEddy

[SmartHomeEddy 878]

This is the logic to turn the ventilation on or off

 

local currentState = false

    if switchId then

        currentState = fibaro.getValue(switchId, "value")

    end

    local diff = round(inside) - round(outside)

    local needVentilation  = nil

 

    local hygro_target_on = hygro_target + hygro_hysteresis_up

    local hygro_target_off = hygro_target - hygro_hysteresis_dn

 

    if (currentState == false and diff >= hygro_target_on) then

        needVentilation = true

    elseif (currentState == true and diff <= hygro_target_off) then

        needVentilation = false

    else

        -- hysteresis

    end

 

 

 

 

 

[ErikP 5]

@SmartHomeEddy, thanks, thought that var target the badroom hum sensor was ?. So that messed-up the calculation.

Will try to hardcode the var tInside and hInside because it seems my room defaults give an error. Thanks!

[SmartHomeEddy 878]

You’re welcome. 
 

With absolute humidity it works great overhere for some years now. 

[ppeterr 205]

i'd like to know, what brand sensor are you guys using.

 

I'm looking at this this one at the moment.

 

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[SmartHomeEddy 878]

In the bathroom I use a Everspring ST814 temperature and humidity sensor. Looks ugly, works great, but no longer for sale. If someone knows where to still buy one, let me know, I will buy them all. 
 

In the living room I use a MCO Home CO2 sensor (next to CO2, also with temperature and humidity)

 

And also in the living room I use a DIY air quality sensor (like on 

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) with next to temperature and humidity, also pm1, pm2.5, pm4, pm10 (with the sensirion SPS30 sensor). 
 

All together they control my ventilation. 

 

[ppeterr 205]

Very nice, little expensive. I'll think i wil start with the aeotec for the bathroom.

 

But then again, i first have to build my little NRF905 transceiver

 

 

[SmartHomeEddy 878]

The MCOhome CO2 sensor is around 125 euro. But CO2 measurements are maybe just as important as humidity. 
 

Aeotec also has fine products. 

[ErikP 5]

1 hour ago, ppeterr said:

i'd like to know, what brand sensor are you guys using.

 

I'm looking at this this one at the moment.

 

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I would recommend a powered sensor because of the refresh speed communication with HC. So I would say the aerq is not most suited for this purpose. I use the aeotec multisensor 6 which works fine and they also have a version 7 now but not sure what the difference is except the price

[SmartHomeEddy 878]

That is what is nice of the Everspring sensor. It is battery powered (AA batteries) and has a threshold when to communicate. So if the humidity (or temperature) changes beyond that threshold, the HC3 gets it info. It doesn't communicate all the time, only when the measurements change. The batteries work more than a year. 

 

I don't know if the Aeotec has that functions. 

[ppeterr 205]

45 minutes ago, ErikP said:

I would recommend a powered sensor because of the refresh speed communication with HC. So I would say the aerq is not most suited for this purpose. I use the aeotec multisensor 6 which works fine and they also have a version 7 now but not sure what the difference is except the price

 

Not sure if i understand you correctly, the aerq has a cell battery. 

And the 7 and 6 version are also battery powerd (or USB)

[Sjakie 138]

Aeotec 7 has Zwave 700 chip

Aeotec 6 has Zwave plus chip

[ErikP 5]

4 hours ago, ppeterr said:

 

Not sure if i understand you correctly, the aerq has a cell battery. 

And the 7 and 6 version are also battery powerd (or USB)

Indeed so version 6 or 7 you should use in usb mode. When on battery and with aerq you have only battery mode. To conserve battery reports to console are not realtime. So in this use case not ideal because I guess you want the fan to kick in directly when needed....
Thanks Sjakie for pointing out the difference 

[ppeterr 205]

22 minutes ago, ErikP said:

Indeed so version 6 or 7 you should use in usb mode. When on battery and with aerq you have only battery mode. To conserve battery reports to console are not realtime. So in this use case not ideal because I guess you want the fan to kick in directly when needed....
Thanks Sjakie for pointing out the difference 

 

Oke, not sure if thats good for my situation. I only have one power outlet next to

the sink in the bathroom. And i dont think its a good idea to put a adaptor there.

Also i dont have big delays with my other sensors, movement, lux, etc are almost instant.

 

[Sjakie 138]

I placed my adapter in ceiling lamp >>>safe! with flat contra plug

[ppeterr 205]

10 minutes ago, Sjakie said:

I placed my adapter in ceiling lamp >>>safe! with flat contra plug

 

Ah yeah, thats actually a nice solution. But i have 3 small spots, so not really space for that.

Maybe i can use the bathroom cupboard, that has some led lightning in there.

 

But then again, a am no electrician. Not a good idea  ???

[Sjakie 138]

with a small contra plug you don't need so much space

 

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connect brown and blue to contra plug