water pump with T-Higrow

jcorbella

Hi all,

I'm using T-Higrow and I have the water pump, I would like know if is posible to use the 5V pin from esp32 in order to run the water pump or maybe I have to connect the water pump to a external power source.

Thanks

teastain

@jcorbella You will need:

a separate power supply rated for the pump
a small relay or mosfet to switch the pump to help isolate the pump motor from the ESP32 circuitry
all grounds connected to a "common"
no power interconnections, I.e. power isolated between LilyGO and pump power supply