Monitor Water Level in Animal Troughs with Arduino Uno & Ultrasonic Sensor

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

On many Indian farms, animals share a common water trough that can run dry without warning - a thirsty cow means lost milk and an unhappy herd. With this kit, you build a simple monitoring device that uses an ultrasonic sensor to measure the water level and lights up red LEDs when it drops too low, all controlled by an Arduino Uno. You'll transform a real-world farming challenge into a working prototype in under two hours.

What You'll Build

You'll assemble a water-level indicator that sits above a trough. The HC-SR04 ultrasonic sensor pings the water surface continuously; when the distance exceeds a preset threshold, two bright red LEDs switch on as a clear alert. A pair of green LEDs stay lit while the water remains at a safe level. The entire circuit runs off a 9V battery and fits on a breadboard, ready for you to mount above any trough or bucket.

What You'll Learn

• How an ultrasonic sensor (HC-SR04) measures distance by timing sound echoes.
• Programming an Arduino Uno to read sensor data and control multiple LEDs based on threshold logic.
• Practical circuit building on a breadboard, including resistor placement and LED polarity.
• Translating a farming need into a functional electronics prototype.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit fits perfectly into CBSE classrooms (Class 5-10) exploring sensor-based projects, ATL Tinkering Labs where students design community solutions, and young makers curious about smart farming. It's equally useful for a first-year B.Tech ECE student who wants a simple, guided build with real agricultural relevance, or a school science exhibition that needs a live demo of water monitoring.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project - accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.