WATER LEVEL
INDICATOR
Team Members :
22BEC120, 22BEC112
THINK ABOUT IT
What are water level
indicators ?
How do they work ?
Where are they used ?
What are the different
components used ?
Objective
This project is about making a simple and affordable
system that can tell us how much water is in a tank or a
container. We want to create it using basic things like
resistors, transistors, LEDs (those small colourful lights), a
battery, a buzzer (for sound), and electrodes that can
detect water levels.
Here's what we aim to do:
1. Detect Water: Make sure the system can accurately
figure out how much water is in the container by using
special sensors placed at different heights.
2. Show Water Levels: Use the colorful lights (LEDs) to
show how much water is in the container. Each light
will represent a different level.
3. Make a Sound if Needed: Optionally, include a buzzer
that makes a sound when the water reaches a really
high or really low level.
4. Keep it Simple: Make the system easy to build and
use so that anyone who wants to try it can do so
without much trouble.
Circuit Elements
1 2 3
Transistor Resistor Voltage source LEDs Buzzer
Transistor is a A resistor is used A voltage source is It is a device It is an electric
miniature device for either limiting a two-terminal that emits light signaling device
that is used to or regulating the device which can when an that makes a
control or regulate flow of electric maintain a fixed electric current buzzing sound
the flow of current in voltage. passes through
electronic signals. electrical circuits. it.
Circuit Diagram
PCB Layout
Working
1. Sensor Setup: We placed water sensors at different levels inside the container.
2. Transistors' Role: When water touches a sensor, it triggers a small switch called a
transistor. When they receive a signal from the sensors (due to water contact),
they let electricity flow to the corresponding light (LED).
3. Switching Lights: When water touches a sensor, it turns on a specific light (LED)
indicating that level.
4. Visual Indication: Each lit LED shows the water level, making it easy to see how
much water is in the container.
5. Optional Buzzer: We also added a buzzer for an extra sound alert if the water
reaches a critical level.
6. Observation: By looking at the lights and listening to the buzzer
(if included), we can know the water level and its safety.
Working Video
Conclusion
The water level indicator project effectively achieves its purpose by
offering a simple and efficient means to monitor water levels. This system
can be applied in diverse settings such as water tanks, reservoirs, or
automated irrigation systems to facilitate better water management
practices. Moreover, it serves as an educational tool, aiding enthusiasts in
understanding sensor interfacing and basic circuit design.
THANK
YOU
