Build a Frost Warning Alarm with Arduino Uno - Complete Beginner Kit

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

Every winter, sudden frost can destroy tender plants and damage crops overnight. With this kit, you'll build a reliable outdoor temperature alarm that sounds a loud buzzer when the temperature drops below 4�C-the critical frost threshold. Using a waterproof DS18B20 probe and an Arduino Uno, you create a system that gives early warning, helping protect a garden or small farm from cold damage.

What You'll Build

A real-time temperature monitoring station with an outdoor probe that displays readings on a bright 16x2 LCD indoors. When the probe senses temperatures falling toward freezing, an active buzzer instantly alerts you. The entire circuit runs on a 9V battery, so you can place the sensor exactly where you need it-outside a window, in a greenhouse, or on a terrace-without worrying about power sockets.

What You'll Learn

• Connecting and reading data from a DS18B20 one-wire digital temperature sensor
• Programming an Arduino Uno to monitor temperature and trigger a buzzer alarm
• Displaying sensor readings on an LCD using an I2C backpack for simpler wiring
• Building a practical embedded system that solves a real-world environmental challenge

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for school students working on STEM projects, CBSE Class 5-12 science fairs, ATL Tinkering Labs focusing on weather and agriculture, and young makers who want a first Arduino build that solves a real farming problem. B.Tech ECE/EEE students can use it as a quick, hands-on sensor integration demo.

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.