KiddyPi Door Alarm Kit | DIY Security Alarm STEM Project for Kids DOOR OPEN → CIRCUIT BROKEN → ALARM!
KiddyPi STEM Kits · Electronics

KiddyPi Door Alarm Kit | DIY Security Alarm STEM Project for Kids

A hands-on door alarm kids wire and build themselves — real circuit-building, for ages 10 and up.

BATTERY + BUZZER CIRCUITNO PROGRAMMING NEEDEDAGES 10+
Rs. 399.00 Rs. 299.00SAVE 25%
Note: simple crocodile-clip assembly — no soldering or programming required. Light adult supervision recommended for ages 10–12.

Real security, wired by hand.

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earn the fundamentals of electronics while building a real working security system with the KiddyPi Door Alarm Kit. Designed for students aged 10 years and above, this engaging DIY STEM kit allows children to create a simple door alarm that sounds whenever a door is opened.

Using a battery, buzzer, wires and a simple door contact switch, students build a complete circuit that stays closed while the door is shut and breaks the moment it opens — triggering the alarm. It's a hands-on introduction to circuits, conductivity and cause-and-effect engineering, with zero code required.

Details

IncludesBattery, Buzzer, Crocodile Clips, Connecting Wires, Door Contact, Instructions
Skill levelBeginner-friendly electronics, no coding
Age range10+ years
ActivityBuild a Working Door Alarm
Core partsBattery · Buzzer · Door Contact Switch
VendorKiddyPi
👦 Ages 10+⚡ Beginner Electronics🧠 Problem Solving🛠️ Hands-on STEM

How the Alarm Works

Follow the current from the battery, through the door, to the buzzer.

SAFE — circuit complete DOOR OPEN — ALARM!

Build the Alarm

Everything inside the box — real parts, real circuit.

Battery

Powers the alarm circuit.

Crocodile Clips

Make it easy to connect components.

Buzzer

Produces the alarm sound.

Wires

Carry electrical current through the circuit.

Door Contact

Breaks the circuit when the door opens.

Instructions

Step-by-step guide to build your alarm.

Build the Alarm in 3 Steps

 

01

Connect

Attach the wires and components.

02

Build

Complete the circuit.

03

Test

Open the door — alarm sounds.

Circuit Diagram

Battery → wire → contact → buzzer → wire → battery.

Circuit Complete ✓ Circuit Open

What You'll Learn

 

Basic Circuits

Understand how simple circuits work.

Batteries & Power

Learn how electrical power flows.

Conductivity

Understand how electrical connections work.

Buzzers

Learn how electrical signals create sound.

Problem Solving

Find and fix circuit problems.

Hands-on Building

Learn by creating a working project.

Before & After

 

Door closed keeps the circuit complete and the alarm silent. Door open breaks the circuit and the buzzer sounds.

CAN YOU BUILD IT?

Build the circuit.
Test the alarm.
Find the problem.
Make it work!

Perfect For

STEM Learning ProgramsElectronics WorkshopsScience ExhibitionsSchool Innovation LabsHome LearningGifting for Young Makers

Ready to build your first alarm?

BUILD IT → TEST IT → MASTER IT