Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →
Measure Light and Optical Changes with a Compact Sensor
The Adafruit VEML6070 UV Index Sensor Breakout is a light sensor with i2c designed for light logging, auto-brightness control, and optical sensing. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Voltage Supply: 2.7-5.5V ; Interface: I2C.
Why you’ll love it
- Power range: 2.7-5.5V
- Useful spec: 320-410nm (peak at 355nm)
- Easy wiring: I2C
- Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
- Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
- Project-ready sensing: light logging, optical switching, line tracking, and brightness-aware projects
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| Adafruit VEML6070 UV Index Sensor Breakout | light sensor with I2C | Current item |
| UV Sensor Gravity | light sensor | analog output |
| Adafruit LTR390 UV Light Sensor - STEMMA QT / Qwiic | light sensor with I2C | STEMMA QT connector, Qwiic connector |
| UV Sensor Grove | light sensor with analog output | general-purpose sensing |
What you can build
This sensor is a good fit for light meters, line followers, UV monitors, auto-brightness systems, and optical experiments.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus an I2C cable or jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include I2C cables, pull-up friendly boards, OLED displays, and logging modules, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Adafruit VEML6070 UV Index Sensor Breakout |
|---|---|
| Voltage Supply | 2.7-5.5V |
| UV spectrum sensitivity | 320-410nm (peak at 355nm) |
| Interface | I2C |
| Category | optical light imaging photon sensors |
Wiring & usage notes
Connect VCC, GND, SDA, and SCL to your controller. Use the correct board voltage and I2C address in your code.
What’s in the box
1 × Adafruit VEML6070 UV Index Sensor Breakout
Frequently Asked Questions
What does the Adafruit VEML6070 UV Index Sensor Breakout measure?
It is designed to measure light, color, or optical changes.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this I2C sensor?
This version uses I2C, so you usually connect VCC, GND, SDA, and SCL.
What affects accuracy?
Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
Customers also bought
Build with this board
Thumb Joystick - A Beginner's Guide
Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Motor Drive (BTS7960 43A) - A Beginner's Guide
Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Raspberry Pi Pico (RP2040) - A Beginner's Guide
Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Notes from the bench
Ask the community
Project Showcase — show what you built
Share what you built. Photos, BOM, what worked, what didn't.
view thread →How to ask a good question (and actually get answers)
Symptom + what you tried + clear photo = answers within hours.
view thread →ESP32 brownout when wiring a sensor — fixes that worked
Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →First Arduino — sketch upload error, what to try?
Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →