Are there any good recommendations for water control valves? I want to control a automatic watering system and need something to attach to the garden tap. Open firmware would be a bonus.
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I built my own with an esp32 and esphome.
Esp32 runs a relay board which switches the 24v to my sprinkler valves.
Depends on where you live. Not open source but Ikea has one.
https://www.ikea.com/se/sv/p/knycklan-elektronisk-diskmaskinsavstaengning-20425724/