February 2015
Beginner
206 pages
4h 16m
English
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DC motor speed control revisited
For the second example of using analog inputs, I have to use a very common electronic component in almost any project: a potentiometer, or simply, a variable resistor, which is a component that by the use of some kind of knob, allows us to change the resistance it offers.
Potentiometers are all around us, from the volume knob on your sound equipment to the temperature regulator of your heating system.
For this project, I'll combine a potentiometer with the motor speed controller we built in Chapter 4, Controlling Outputs Softly with Analog Outputs, in such a way that we can easily change the motor speed by acting on the potentiometer.
The potentiometer
Two typical potentiometers along with their corresponding schematic ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.