2 layers20.3 × 69.7 mm

PG attiny404
fabiansteiner/OpenValve
3D-printable pinch valve for irrigation and sensor-driven liquid control.
41 parts276CERN-OHL-S-2.0
KiCad boards from 2 GitHub repositories tagged “watering-system”, the most starred first; open any of them in PCBKit.

fabiansteiner/OpenValve
3D-printable pinch valve for irrigation and sensor-driven liquid control.

versarite/Flowerweb
Remote flower watering system with raspberry pi over tailscale net