Water Level Monitor With Oled Display Using Raspberry Pi

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

Oled Display:

OLED Display is a component that can display images and words clearly. I have used a 128 x 64 display.

In addition to this, we need:

A bucket

A water jug

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

Structure:

Structure

· Attach a scale to the bucket.

· Next attach the buzzer and ultrasonic sensor to the scale

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 below or from the end of the page:

https://github.com/Aiversity/Raspberry-Pi-projects-for-beginners/tree/master/Water%20level%20Monitor%20With%20Oled%20Display%20Using%20Raspberry%20Pi

. Run the code

You will have to add your distance from the ultrasonic sensor to the base of the bucket on the line :

Line 25. dist_from_base = #Write the distance from the sensor to the base of the bucket