2 layers

HotWaterRecirculatingPump
NilsRo/HotWaterRecirculatingPump
Automation of hot water recirculation pump via ESP32
12 parts5AGPL-3.0
KiCad boards from 1 GitHub repository tagged “warmwasser”, the most starred first; open any of them in PCBKit.

NilsRo/HotWaterRecirculatingPump
Automation of hot water recirculation pump via ESP32