I recently set up a system using Shelly 1L and Shelly Plus HT to control my heating circulation pump, and I’d like to share my experience, including some troubleshooting and solutions I encountered. This might be helpful for others looking to integrate similar devices into their smart homes.
Initially, my goal was straightforward: I wanted the pump to turn on when the room temperature drops below 14°C and off once it reaches 16°C. I created two flows in my automation system to handle these conditions. However, I quickly realized that the system wasn’t working as expected. The pump would activate correctly when the temperature fell below 14°C, but it wouldn’t reactivate once the temperature dropped again after turning off. This was frustrating, as it defeated the purpose of automating the heating system!
After some research and trial and error, I identified the issue. The problem lay in how the flows were structured. The first flow was designed to turn the pump on when the temperature dropped, and the second was supposed to turn it off when the temperature rose. However, the second flow wasn’t properly accounting for the state of the pump. Essentially, once the pump was turned off, the system didn’t have a clear trigger to reactivate it when the temperature dropped again.
To fix this, I restructured the flows. I combined both conditions into a single flow using conditional statements. Now, the flow checks the current temperature and the state of the pump. If the temperature is below 14°C and the pump is off, it turns the pump on. If the temperature is above 16°C and the pump is on, it turns it off. This ensures that the pump operates smoothly without needing manual intervention.
I also found that using the Shelly devices’ built-in automation features, like their REST API, made the integration much simpler. By sending HTTP commands to the Shelly Plus HT, I could directly control the Shelly 1L without relying solely on my home automation system’s rules engine. This added a layer of redundancy and reliability to the setup.
Another tip I discovered is the importance of proper temperature sensor placement. Ensure that the sensor is located in an area that accurately reflects the room’s temperature without being influenced by direct heat sources or drafts. This helps prevent false triggers and ensures consistent performance.
Overall, this project taught me the value of thorough testing and the importance of understanding how different devices interact within a smart home ecosystem. The Shelly devices have been reliable, and with the right configuration, they can handle even complex automation tasks. I’m now confident in expanding my setup to include more smart devices!
If anyone has similar projects or遇到任何问题, feel free to share your experiences or ask for advice. It’s always great to learn from others and collaborate on improving our smart home setups.