O'Reilly logo

Beginning Arduino Programming by Brian Evans

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Analog Demystified

To get our heads around the concept of what analog is, we should compare the difference between analog and digital signals beginning with Figure 6-1.

images

Figure 6-1. Digital versus analog signals

Looking at these two graphs that show the effect of the different signals types over time, you can see that where a digital signal abruptly shifts from high to low, an analog signal can gradually move through a multitude of steps in between these two extremes. This varying, or analog signal, is what we can use to determine how cold it is, how much pressure is being exerted, or to change the brightness of a light or the speed of a motor. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required