How to manage your humidity in the bathroom
This flow is created to measure the changes of humidity and manage the speed of the balance ventilation in the bathroom to achieve a normal humidity after using the bathroom.
In my case i added a device (power plug) on the balance ventilation to switch to high speed (so i overruled the remote, when needed).
First step is to create two number variables.
Note! - Make sure you add a value to the variable. It needs to multiply in the formula and and when you don’t add a value it stays 0 (e.g. 10 x 0 = 0) and the flow won’t work.
1. Average RV
2. Limit RV
Average RV is calculating after every change the RV and deviates it by a formula to realise the average RV
Limit RF is the Average RV with a self set percentage when RV is in acceptable value
First flow - HUM001 this is the flow which calculates the Average RV
The IF card contains the change at the sensor in your bathroom (in my case i used the Aqara Temp sensor)
The THEN card executes the formula to set the Average RV percentage
Note! in the formula i use round to get a number without decimals, be aware that round is spelled correctly and typed in lowercase like the example!
Second flow - HUM002 this flow sets your desired max when ventilation can stop
The IF card is trigged when te variable Average RV changes
The THEN card calculates the Limit RV
Third flow - Starting ventilation on high speed. (In my case, i used the Aqara Human Body sensor in the shower part of the bathroom)
The IF card is triggered when motion is detected
The THEN card starts several things
- Starts the fourth flow to turn that on
- Starts the ventilation on high speed
- Starting the mirror heating
4 and 5 Heater (in my case i have air heating and when showering i set the blower to max to get extra air in the bathroom)
- Starting a timer ( i like to ventilate at least 500 seconds)
- Make a notification
Fourth flow - Stopping the ventilation
The IF card triggers a timer to check every two minutes (whatever you prefer)
The AND card checks if the timer is zero and if the Limit RV is less then the real RV
The THEN card stops ventilation and this (the fourth) flow