Arduino Multi-Alarm Clock Kit: Build a Programmable RTC Alarm with Relay Output

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

Set up multiple daily alarms with a DS3231 real-time clock, navigate an LCD menu to configure times, and trigger a relay on each alarm. This kit equips you to build a reliable, customizable alarm system for school bells, lab timers, or home automation — all without sourcing parts from different sellers.

What You'll Build

A fully functional, programmable alarm clock with an LCD interface that lets you set, view, and modify up to 5 daily alarms. When an alarm fires, the relay activates, allowing you to control a buzzer, lamp, or any low-power appliance. The onboard DS3231 maintains accurate time even during power outages.

What You'll Learn

• Programming Arduino to interface with an I2C LCD for menu-based user input
• Configuring the DS3231 real-time clock module for multiple alarm triggers
• Using tactile buttons for navigation and setting time values
• Controlling a 5V relay safely to switch external devices on a schedule

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for Class 11–12 students building a CBSE physics or computer science project, B.Tech ECE/EEE students prototyping a time-based automation for Smart India Hackathon, or ATL Tinkering Lab participants exploring embedded systems. If you've completed basic Arduino tutorials and want to tackle a real-world timing application, this bridge project will strengthen your programming and circuit skills.

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.