/arduino-waterlevel-sensor

Water Level Sensor LED Arduino

Primary LanguageC++GNU General Public License v3.0GPL-3.0

Water Detection System Using Arduino

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 detected and turns OFF when water is present.

Features

  • Detects water presence using a water sensor.
  • LED indication for water detection status:
    • ON: No water detected.
    • OFF: Water detected.
  • Serial output to monitor sensor readings and water status.

Components Required

  • Arduino Board (e.g., Arduino Uno, Nano, or Mega)
  • Water Sensor
  • LED (with a suitable resistor, e.g., 220Ω)
  • Connecting Wires
  • Breadboard (optional, for prototyping)

Circuit Diagram

Schematics

arduino schematics

Pin Connections

Arduino Pin Component Description
D2 LED (via resistor) Turns ON/OFF based on water status.
D7 Water Sensor Power Powers the water sensor.
A5 Water Sensor Signal Reads the sensor's analog output.

Code Overview

Main Features

  1. Powers the water sensor only when needed to conserve energy.
  2. Reads and averages multiple sensor readings for improved accuracy.
  3. Uses a threshold value to determine water presence.

Code Snippet

#define LED_PIN     2
#define POWER_PIN   7
#define SIGNAL_PIN  A5
#define THRESHOLD   300
  • LED_PIN: Controls the LED.
  • POWER_PIN: Powers the water sensor.
  • SIGNAL_PIN: Reads analog values from the water sensor.
  • THRESHOLD: Determines water presence (adjust as needed).

Installation and Setup

  1. Connect the Components:
  • Follow the circuit diagram to connect the water sensor, LED, and Arduino.
  1. Upload the Code:
  • Open the Arduino IDE.
  • Copy and paste the provided code into the IDE.
  • Select the appropriate board and port.
  • Upload the code to the Arduino board.
  1. Adjust Threshold (if necessary):
  • Observe the sensor's output in the Serial Monitor.
  • Update the THRESHOLD value in the code to match your environment.

Usage

  1. Power the Arduino using a USB cable or external power source.
  2. Observe the LED:
  • ON: No water detected.
  • OFF: Water detected.
  1. Open the Serial Monitor in the Arduino IDE (set to 9600 baud) to view the water detection status and sensor readings.

Customization

Threshold Value: Adjust THRESHOLD to match the sensor's behavior in your specific setup.

LED Behavior: Modify the LED logic for different indications if needed.

Sampling Rate: Change the delay between readings by editing LOOP_DELAY.

Troubleshooting

LED not responding: Check connections to the LED and resistor. Ensure the water sensor is powered properly.

Incorrect readings: Verify the sensor is connected securely. Adjust the THRESHOLD based on the sensor's output.

Future Enhancements

Add a buzzer for audible alerts. Integrate with an IoT platform for remote monitoring. Use a display to show real-time sensor readings.

Tutorial

Arduino Water Level Sensor