This project demonstrates a simple water detection system using an Arduino board and a water sensor. The system uses an LED to indicate whether water is detected. The LED turns ON when no water is ...

Now lets see if the hardware is connected right by uploading the code: #include <Adafruit_NeoPixel.h> #define PIN 2 // Here is where the LED is connected to the Arduino UNO #define NUMPIXELS 10 // ...

V-LED This is the VCC pin of the LED. Connect this pin to the 5V pin of the Arduino with a 150Ω Current Limiting Resistor. LED-GND This is the Ground Pin of the LED. Connect this pin to the Ground pin ...