Hey everyone! I’ve been working on integrating some Modbus TCP sensors for my Komfovent system and wanted to share my experience, as well as ask for some advice on a related project.
First, regarding the Modbus TCP integration: I’ve been trying to convert the numerical values returned by the sensors into readable states. From what I understand, the documentation mentions using char, but in practice, it returns a number. I’ve set up a basic sensor configuration, but I’m not sure if I should handle the state conversion within the sensor definition or if I need to create a separate template sensor for this. Here’s what I have so far:
sensors:
- name: “Komfovent Power”
address: 4
input_type: holding
data_type: uint16
If anyone has tips on the best approach for this, I’d greatly appreciate it!
Now, moving on to my rainwater usage tracking project: I’ve got a pressure sensor that measures the water level in my rain tank, and it’s been working really well. However, I want to take it a step further by calculating the amount of water we use. My initial thought is to create a counter that triggers when the sensor value drops by more than 0.05. Here’s the workflow I’m considering:
- Check if the new sensor value is lower than the previous one.
- If the difference is greater than 0.05, convert it to a percentage and calculate the volume of water used.
- Update a total usage counter with this value.
I’ve started drafting some rules for this, but the sensor readings are quite sensitive, leading to a lot of false positives. For example, during a short rain event, I noticed over 20 readings in just 20 minutes. I’m wondering if there’s a way to smooth out these readings or set a threshold to ignore minor fluctuations.
If anyone has experience with similar projects or suggestions on how to refine this setup, I’d love to hear your thoughts! It’s been a fun challenge, and I’m excited to see how it turns out. 