APDS-9301 Sensor Hookup Guide

Contributors: SFUptownMaker
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The APDS-9301 is an I2C compatible luminosity sensor which returns readings in lux. It is non-instantaneous, requiring some integration time to take a measurement. SparkFun provides a library making use of the part very simple.

SparkFun Ambient Light Sensor Breakout - APDS-9301


Required Materials

Please check the wish list below for items required to follow this tutorial.


No special tools are required to follow this tutorial. You will need a soldering iron, solder, and general soldering accessories.

Soldering Iron - 30W (US, 110V)

Solder Lead Free - 15-gram Tube


Suggested Reading

We suggest reviewing the tutorials below to ensure that you’re up-to-date with all of the skills necessary to follow this hookup guide.

How to Solder: Through-Hole Soldering

This tutorial covers everything you need to know about through-hole soldering.

Installing an Arduino Library

How do I install a custom Arduino library? It's easy!

Logic Levels

Learn the difference between 3.3V and 5V devices and logic levels.


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