Lesson: 19 – 3 Ways to Measure Water Level with Arduino | Float Switch, Analog Sensor & HC-SR04

Lesson: 19 – 3 Ways to Measure Water Level with Arduino | Float Switch, Analog Sensor & HC-SR04

Hello and welcome to electro nerds academy. In this video, you’ll learn 3 simple and practical ways to measure water level using Arduino.
We’ll explore three different sensors — the Float Switch, Analog Water Level Sensor, and HC-SR04 Ultrasonic Sensor — to understand how each can be used to detect and monitor water levels accurately.

We’ll go step-by-step through the circuit, code, and working principle of each method.

What You’ll Learn
✅ what is a float switch? And how it works?
✅ Difference between ball type float switch and magnetic float switch
✅ Make an Automatic Water Pump Controller with Float Switch, Buzzer Reminder & Push Button to start the pump.
✅ What is an analog water level sensor? And its inner circuit diagram
✅ How to make a water level indicator using the analog water level sensor?
✅ Some precautions while using this sensor
✅ How the ultrasonic sensor HC-SRO4 can be used to detect water level?
✅ Why the ultrasonic sensor is better than the float switch and the analog water level sensor
✅ Make a simple water level indicator using the HCSRO4 ultrasonic sensor

By the end of this tutorial, you’ll have a clear understanding of how to build your own water level indicator system or automatic water tank controller using Arduino.

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