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 Zumo Reflectance Sensor Array is an optical interrupter sensor with digital output designed for light logging, optical switching, line tracking, and brightness-aware projects. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Interface: Digital GPIO.
Why you’ll love it
- Key feature: Make the I/O line connected to that sensor an output and drive it high.
- Measure the time: Measure the time for the voltage to decay by waiting for the I/O line to go low.
- Easy wiring: Digital GPIO
- 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 |
|---|---|---|
| Zumo Reflectance Sensor Array | optical interrupter sensor with digital output | Current item |
| QTR-8RC Reflectance Sensor Array | optical interrupter sensor with digital output | digital output |
| QTR-8A Reflectance Sensor Array | optical interrupter sensor with analog output | analog output |
| QTR-3RC Reflectance Sensor Array | optical interrupter sensor | model QTR-3RC |
What you can build
This sensor is a good fit for automatic brightness control, line followers, light meters, UV monitors, flame detection, and optical encoders.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | Zumo Reflectance Sensor Array |
|---|---|
| Interface | Digital GPIO |
| Category | optical light imaging photon sensors |
Wiring & usage notes
Connect power and ground, then wire the output pin to a digital GPIO input. Check whether the module uses active-high or active-low logic in your code.
What’s in the box
1 × Zumo Reflectance Sensor Array
Frequently Asked Questions
What does the Zumo Reflectance Sensor Array measure?
It is designed to measure light, reflection, or beam interruption.
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 Digital GPIO sensor?
This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.
Does it need calibration?
Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.
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 →