Spectral Triad (AS7265x) Hookup Guide

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Contributors: Nate
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Introduction

The SparkFun Triad Spectroscopy Sensor is a powerful optical inspection sensor. Three AS7265x sensors are combined alongside a visible, UV, and IR LEDs to illuminate and test various surfaces for light spectroscopy.

SparkFun Triad Spectroscopy Sensor - AS7265x (Qwiic)

SparkFun Triad Spectroscopy Sensor - AS7265x (Qwiic)

SEN-15050
$64.95
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AMS has combined the power of three sensors to cover the measurement of light from 410nm to 940nm in 18 individual bands.

18 Channel Spectral Response from the Datasheet

What Can You Do with Light Spectroscopy?

It’s an amazing field of study, and the SparkFun Triad brings what used to be prohibitively expensive equipment to the desktop. The AS7265x should not be confused with highly complex mass spectrometers, but the sensor array does give the user the ability to measure and characterize how different materials absorb and reflect 18 different frequencies of light.

Required Materials

To follow along with this hookup guide, you will need one of the following Qwiic shields with an Arduino. You may not need everything though depending on what you have. Add it to your cart, read through the guide, and adjust the cart as necessary.

SparkFun RedBoard - Programmed with Arduino

SparkFun RedBoard - Programmed with Arduino

DEV-13975
$19.95
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SparkFun Qwiic Shield for Arduino

SparkFun Qwiic Shield for Arduino

DEV-14352
$6.95
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You will also need a Qwiic cable to connect the shield to your AS726X, choose a length that suits your needs.

Qwiic Cable - 100mm

Qwiic Cable - 100mm

PRT-14427
$1.50
Qwiic Cable - 50mm

Qwiic Cable - 50mm

PRT-14426
$0.95
Qwiic Cable - 500mm

Qwiic Cable - 500mm

PRT-14429
$1.95
1
Qwiic Cable - 200mm

Qwiic Cable - 200mm

PRT-14428
$1.50

Tools

Depending on your setup, you may need a soldering iron, solder, and general soldering accessories.

Solder Lead Free - 100-gram Spool

Solder Lead Free - 100-gram Spool

TOL-09325
$8.95
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Weller WLC100 Soldering Station

Weller WLC100 Soldering Station

TOL-14228
$44.95
2

Suggested Reading

If you aren't familiar with the Qwiic system, we recommend reading here for an overview.

Qwiic Connect System
Qwiic Connect System

We also recommend checking out these tutorials before continuing.

Light

Light is a useful tool for the electrical engineer. Understanding how light relates to electronics is a fundamental skill for many projects.

I2C

An introduction to I2C, one of the main embedded communications protocols in use today.

Qwiic Shield for Arduino & Photon Hookup Guide

Get started with our Qwiic ecosystem with the Qwiic shield for Arduino or Photon.