I just create a smart rain sensor by combining a raindrop module with Aqara flood sensor. After making a 3d model pack, i finally get them work together in the garden.
https://cdn.thingiverse.com/assets/8...view_image.png
https://cdn.thingiverse.com/assets/1...erstation2.stl
https://cdn.thingiverse.com/assets/a...erstation3.stl
https://cdn.thingiverse.com/assets/c...terstation.stl
https://cdn.thingiverse.com/assets/f...erstation4.stl
Attachment 13736
https://cdn.thingiverse.com/assets/b...iew_wiring.png
More info about the Aqara flood sensor: https://www.aqara.com/us/water_leak_sensor.html