Hi there, I’ve been exploring ways to create a smart ventilation system that adjusts based on indoor and outdoor conditions. My goal is to automate the process of deciding when to ventilate to maintain optimal humidity levels. Here’s what I’ve been thinking about:
The Vision:
I want a system that uses a light bulb to indicate when ventilation is needed—green for good, red for action. It should also allow me to set a target humidity level and consider both indoor and outdoor temperature and humidity when making recommendations.
The Setup:
I have a Shelly H&T Plus sensor for indoor monitoring and I’m using OpenWeather for outdoor data. This gives me all the data I need to start experimenting.
The Challenges:
I’ve considered different approaches to calculate the expected indoor humidity after ventilation:
- Simple Approach: Using a rough formula like Hum_Outside - 3*(Temp_Inside - Temp_Outside) to estimate indoor humidity.
- Medium Approach: Looking into Web APIs or bindings for more precise calculations using lookup tables.
- Complex Approach: Creating my own lookup tables and interpolation methods for better accuracy.
The Journey:
While I haven’t found a ready-made solution, I’m excited to dive into this project. It’s a bit daunting, but I’m confident that with some research and experimentation, I can create a system that works well for my home.
The Community:
I’d love to hear from others who have tackled similar projects. Have you implemented a smart ventilation system? What methods or tools did you find effective? Any advice or resources would be greatly appreciated!
Let’s make our homes smarter and healthier together! 