This project uses an ultrasonic sensor to measure the water level in a tank and displays the results on an I2C LCD screen.
- Arduino Uno (or compatible microcontroller)
- Ultrasonic Sensor (HC-SR04)
- I2C LCD Display (16x2)
- Jumper wires
- Breadboard
- VCC → 5V on Arduino
- GND → GND on Arduino
- Trig → Digital Pin 8 on Arduino
- Echo → Digital Pin 9 on Arduino
- VCC → 5V on Arduino
- GND → GND on Arduino
- SDA → A4 on Arduino (or SDA pin)
- SCL → A5 on Arduino (or SCL pin)
- Connect the components as per the wiring diagram.
- Upload the provided code to your Arduino.
- Ensure the I2C address of the LCD is correct (0x27 or 0x3F).
- Place the ultrasonic sensor at the top of the tank, facing downward.
- LiquidCrystal_I2C Library: Used to control the I2C LCD.
- Ultrasonic Sensor: Measures the distance to the water surface.
- Tank Dimensions: Configured in the code (tankHeight, tankLength, tankBreadth).
- Water Level Calculation: Converts the ultrasonic sensor reading into water level percentage, height, and volume.
- LCD Display: Shows the water level percentage, volume, and a progress bar.
- Real-Time Water Level Measurement: Continuously measures and updates the water level.
- Error Handling: Displays an error message if the ultrasonic sensor fails to detect a response.
- Progress Bar: Visual representation of the water level on the LCD.
- Customizable Tank Dimensions: Adjust the tank dimensions in the code to match your setup.
- Tank Dimensions: Update tankHeight, tankLength, and tankBreadth in the code to match your tank's dimensions.
- Sensor Calibration: Adjust tankEmptyDepth and tankFullDepth to calibrate the sensor readings for your specific setup.
- I2C Address: If the LCD doesn't work, try changing the I2C address to 0x3F.
- LiquidCrystal_I2C Library: For simplifying I2C LCD control.
- Arduino Community: For providing resources and inspiration.