UV Dosimeter Wristband
Build Your Own UV Dosimeter Wristband with Arduino – Track Daily UV Exposure and Stay Safe
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Built as a wrist-worn device, this kit lets you create a silent guardian that measures how much ultraviolet radiation your skin receives during the day. The ML8511 sensor accumulates the daily UV dose and the coin vibration motor buzzes the moment you exceed a safe exposure limit—no need to keep checking a screen. An ideal companion for cricket practice, trekking, or any long outdoor day.
What You'll Build
A complete wearable UV dosimeter. The Arduino Nano reads UV intensity from the ML8511 sensor, calculates cumulative dose in real time, and shows it on a crisp 0.96-inch OLED. Once the total crosses a preset threshold, a BC547 transistor drives the vibration motor to give you a tactile warning, keeping your eyes on the trail or the field.
What You'll Learn
- Calibrate an analog UV sensor and read its output through Arduino’s ADC
- Display real-time and cumulative data on a monochrome OLED using I2C
- Use a transistor as a switch to drive a vibration motor from a digital pin
- Program threshold logic with non‑volatile storage of daily dose totals
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Nano | 1 |
| ML8511 UV Sensor | 1 |
| Coin Vibration Motor | 1 |
| BC547 Transistor | 1 |
| 0.96in OLED | 1 |
| 100Ω Resistors | 5 |
| 10kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 1 |
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
Perfect for CBSE Class 11–12 students exploring sensor‑based health projects, B.Tech ECE and biomedical engineering undergraduates diving into embedded wearables, and ATL Tinkering Lab teams preparing for the Smart India Hackathon. Also a strong starting point for hobbyists who want a practical, body‑worn exposure tracker.
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?
Your AI companion will walk you through every wire, every line of code, and common mistakes. If you need human help, our WhatsApp line replies within hours—you’re never alone.
Can I wear this outdoors during a football match or a swim?
The breadboard version is not waterproof, but the AI companion includes a guide for soldering the circuit on perfboard and 3D‑printing a splash‑resistant watch case. For full submersion you’d need additional sealing.
How do I set the daily UV dose limit?
You’ll program the threshold in the Arduino sketch based on recommended daily UV exposure—typically 50–80 mJ/cm² depending on skin type. The OLED shows accumulated dose, and the motor triggers when that limit is crossed.
Can I add Bluetooth to log data on my phone?
This kit does not include Bluetooth, but the AI companion demonstrates how to add an HC‑05 module and stream UV data to a custom mobile app dashboard.
ML8511 accumulates daily UV dose and vibrates when safe exposure limit reached.
What's in this kit
- Arduino Nano
- ML8511 UV Sensor
- Coin Vibration Motor
- BC547 Transistor
- 0.96in OLED
- 100Ω Resistors x5
- 10kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- 9V Battery Snap
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