Rain Alert Kit with Arduino Uno + Sensor – Your Own Rain Detection Alarm

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

Have you ever wanted to know the instant rain starts without looking outside? This kit lets you build a practical rain detection circuit that triggers a buzzer alert the moment moisture lands on the sensor probe. Read the analog value from the rain sensor, set a threshold, and watch your Arduino Uno respond with sound and light — a perfect first step into weather monitoring.

What You'll Build

You'll assemble a complete circuit on a breadboard where the rain sensor’s moisture-sensitive plate sends an analog signal to the Arduino. When water drops touch the probe, the value drops below a set threshold, and the system activates an active buzzer and two blue LEDs to give a clear visual and audio rain alert. It’s a working alarm you can place near a window or balcony.

What You'll Learn

• Read analog input from a moisture sensor and display it in the serial monitor
• Set an if-else condition to compare sensor readings against a threshold
• Control an active buzzer to produce an audible alert
• Build a stable breadboard circuit with LEDs and current-limiting resistors

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This beginner-friendly weather project kit fits perfectly into CBSE Class 11-12 sensor‑based practicals, B.Tech ECE/EEE first‑year lab exercises, and ATL Tinkering Labs running environmental monitoring workshops. It’s also simple enough for a curious 10‑year‑old to build with a parent — making it a popular choice at Smart India Hackathon pre‑event bootcamps and VIT/NIT club activities.

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.