Water Level Monitor Using Raspberry Pi

Water Level Monitor Using Raspberry Pi

Project link

Hello everybody, I am Shafin, a member of Aiversity. I am going to share about how to build a water level sensor for water tanks with a Raspberry pi. This project is going to help you to understand the working of Raspberry pi in detail. 

For the video project, see below:

Materials:

  • Raspberry Pi Model 3B 
  • Ultrasonic Sensor
  • Jumper Wires
  • Buzzer

Raspberry Pi model 3B:

Raspberry Pi is a credit card-sized programmable computer that fits in your pocket. In this project, I am using a Raspberry Pi model 3B. It has 40 Gpio pins, 4 USB ports, charging and an HDMI port with an Ethernet port. It is compatible with almost all projects.


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Ultrasonic Sensor:

Ultrasonic Sensor is a sensor that can measure the distance between the sensor and the object using echolocation i.e the principle which bats use.

Buzzer:

A buzzer is a small component that gives out a sound wave when is switched on. We are going to use this to alert if our water tank is full  

In addition to these , we will need a bucket and a jug

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Connections:

As we are familiar with the working of the components, let's take a look at the connections.

Connections:

Ultrasonic sensor Vcc to 5v of Raspberry Pi

Ultrasonic sensor Gnd to Gnd of Raspberry Pi

Trigger to GPIO 2

Echo to GPIO 3

Buzzer + to GPIO 4

Buzzer – to Gnd 

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Structure:

The Structure is given at the right.

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Code

Now you know the connections and the structure, let’s build the code.

1. Open the Thonny Python IDE

2. Download the Github code:

https://github.com/Aiversity/Raspberry-Pi-projects-for-beginners/tree/master/Water%20Level%20Monitor%20Without%20Oled%20Display

3. Run the code.

Testing:

Fill water in the bucket. When the distance of the ultrasonic sensor from the water is around 4 centimeters, the buzzer will beep, alerting the bucket is almost full.

If you have any queries, please ask at hello.aiversity@gmail.com

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