Build a Smart Washroom Occupancy Indicator with Arduino Uno & OLED Display

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

Stop guessing whether the washroom is free. This kit lets you build a smart status indicator that displays “Occupied” or “Vacant” on an OLED screen and lights a red or green LED outside the door. It solves the daily frustration of knocking, waiting, or walking in on someone, using a magnetic reed switch on the door and a confirmation button inside—perfect for shared homes, hostels, and office washrooms.

What You'll Build

You’ll assemble and program a fully functional washroom occupancy system. When the door opens, the reed switch alerts the Arduino. A person inside presses the button once to confirm occupancy—turning the outside LED red and the OLED to “Occupied”. On exit, pressing again resets the system to green and “Vacant”. The OLED acts as a clear visual dashboard, so even guests understand instantly.

What You'll Learn

• Programming Arduino Uno to read digital inputs from a reed switch and tactile buttons
• Interfacing an I2C OLED display to show real-time status messages
• Wiring multiple LEDs with current-limiting resistors and controlling them via code
• Building a logic-based home automation circuit that handles multiple input conditions

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for CBSE Class 11–12 students creating practical electronics projects, B.Tech ECE/EEE undergraduates working on home automation mini-projects, and participants in Smart India Hackathon needing a quick prototype. It’s also ideal for ATL Tinkering Labs and hobbyists from IIT, NIT, VIT, BITS campuses who want a soldering‑free, ready‑to‑code kit that demonstrates logic control and sensor integration in a real‑world scenario.

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.