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I'm using a xkc y25 for that.

Hi Helmi, After long-term use I need to say: you are right - the sensors are not the best. Some you have to calibrate and some loose the connection from time to time. Making sure the batteries are reasonably charged reduces the error rate. I have also been looking for (wireless) alternatives but have not found any so for. However, last time I looked was probably 10 months ago. I also checked more expensive ones like FYTA but at the time it wasn’t sure if a connection can be established. Let me know if you find a better option.

Sorry for late response. I use 12V valves and I have not anything that you describe installed. Honestly, even after translating I do not fully understand it as I am really just an amateur in this field. Can you recommend a link to better understand the thing you describe?

Thanks a lot for the feedback! The entire setting definitely works for micro greens, too. I’ll try to make videos about my other projects that are more similar.

Hmm, that’s a tough one. The irrigation hat is specifically designed for Pi and fits directly on the pins. What is it that you would like to do? Are you looking for an easy connection to the relais?

@@thomasmarquardt8118 yes was trying to avoid pi and another instance of HA

May be should use esp32 with relay

@@thomasmarquardt8118 thanks for the reply!!!

@@abineshadhikari5973 that was also what I was going to suggest. I’ve seen pieces where the relais are already integrated. I am also working with a relais board connected to esp32 in a different system.

Sounds like a cool project! For watering my plants I use the automation below. You will notice this is only for a single valve. I have another one running for my pump, which would only fire if one of the sensor value is lower than my moisture targets. The targets I determined via input numbers - you can include them in your config.yaml. Input numbers can then be used in the automations (like below) or in sliders in the front end to adjust them. I hope this is what you wanted to know. - id: Openvalve_Greenhouse alias: Openvalve_Greenhouse trigger: - at: '12:30:00' platform: time condition: - condition: template value_template: '{{ (states(''sensor.greenhouse'') | float < states(''input_number.moisture_target1'') | float) }}' action: - data: {} entity_id: switch.valve1 service: switch.turn_on - delay: 00:02:00 - data: {} entity_id: switch.valve1 service: switch.turn_off

Cool! Which devices are you using?

Thank you! The sensors work OK for me but I had to calibrate them (over template on config.yaml). My impression is also that they are not as accurate as e.g. a capacitive soil sensor (connected via ESP32). For some there are big and sudden drops in moisture level where a capacitive soil sensor would show an more incremental decrease over time. I also had 2 faulty ones already. Hence, I would always source locally and not via Alibaba or similar so you can return them in case of a defect. I have been looking for alternatives. There's a few been recently released to the market but I am not so sure if they can be easily integrated.