The project uses a water pump, a water sensor, a relay, and an Arduino Uno to make the aquarium filter work automatically after a power outage.
Water pump: STJF 5V submersible pump Water sensor: T1592 (default sensor in most kits, red circuit board) Relay module: 5V single relay module Board: Arduino Uno
--- WIRING ---
Water sensor: VCC: D7 GND: GND Arduino output Signal: A0
Relay: VCC: 5V Arduino output pin GND: GND Arduino output Signal: D3 Common (COM): 5V Arduino output pin Normaly Open (NO): water pump red wire
Water Pump: +: NO relay port -: GND Arduino output