UV Sterilisation Timer Box Kit with Arduino Nano + Relay Maker 2
UV Sterilisation Timer Box Kit – Arduino Nano Safety Interlock Project
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Build a tabletop UV sterilisation chamber that automatically times exposure and stops instantly the moment the lid is opened. Powered by an Arduino Nano, this kit teaches you how to integrate a real-time clock, relay control, and safety logic into a single functional device. Perfect for sanitising small tools, masks, or components in school labs and home workshops.
What You'll Build
A fully assembled UV-C sterilisation box with an OLED display showing countdown timer, status messages, and a magnetic reed switch that triggers immediate UV shutdown when the lid opens. The system runs on a 9V battery or USB power, making it portable and safe for classroom demonstrations.
What You'll Learn
- Program an Arduino Nano to read a DS3231 RTC module for precise timer control
- Interface a 0.96in OLED display to show real-time countdown and system status
- Implement a hardware safety interlock using a reed switch and relay to cut UV power when the enclosure is opened
- Assemble and solder components on a PCB prototype board, including UV-C LED driver circuits with BC547 transistors
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | x1 |
| DS3231 RTC | x1 |
| 5V Relay Module | x1 |
| Reed Switch | x1 |
| UV-C LED 275nm | x4 |
| Active Buzzer | x1 |
| 0.96in OLED | x1 |
| BC547 Transistor | x4 |
| 100Ω Resistors | x10 |
| PCB Prototype Board | x2 |
| 9V Battery Snap | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Designed for CBSE Class 11–12 students exploring practical electronics and for first-year B.Tech ECE/EEE students working on mini-projects. Ideal for ATL Tinkering Labs and Smart India Hackathon teams needing a ready-to-build safety-focused automation project. Engineering aspirants from IIT, NIT, VIT, and BITS will find the timer and interlock logic directly applicable to real-world embedded system design.
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.
What if I get stuck during the build?
The AI companion provides step-by-step troubleshooting, and you can reach us on WhatsApp for real-time help if the issue persists.
Do the UV-C LEDs come with eye-safety warnings?
Yes, the manual includes strict safety protocols: never look directly at the LEDs, always operate inside an opaque enclosure, and rely on the reed switch interlock as the primary safety barrier.
Can I modify the timer duration?
Absolutely. The Arduino code is fully commented and explained. You can change the exposure time in minutes via the sketch, and the OLED will reflect the new setting immediately.
Is this safe to use on electronics or medical equipment?
<UV-C LED box with DS3231 timer and door interlock relay. Arduino disables UV if lid opened during cycle.
What's in this kit
- Arduino Nano
- DS3231 RTC
- 5V Relay Module
- Reed Switch
- UV-C LED 275nm x4
- Active Buzzer
- 0.96in OLED
- BC547 Transistor x4
- 100Ω Resistors x10
- PCB Prototype Board x2
- 9V Battery Snap
- Soldering Iron
- Solder Wire
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items