
Kit 001
🔧 Step 2: Connect the Hardware
Wiring Overview:
Moisture Sensor:
VCC → Arduino 5V
GND → Arduino GND
A0 → Arduino A0
Relay Module:
IN → Digital Pin 7
VCC → Arduino 5V
GND → Arduino GND
Water Pump:
Connect pump’s bare wires to a screw terminal
Screw terminal → Relay’s NO (normally open)
GND from screw terminal connects to Arduino GND
5V Power Source:
Connect power source bare wires to a screw terminal
Connect GND to Arduino GND
Connect VCC to Relay's COM