Overview

In this lesson, you will learn how to measure light intensity using an Analog Input. You will build on lesson 8 and use the level of light to control the number of LEDs to be lit.

The photocell is at the bottom of the breadboard, where the pot was in lesson 8.

This guide was first published on Dec 11, 2012. It was last updated on Dec 11, 2012. This page (Overview) was last updated on May 04, 2015.