July 2017
Beginner to intermediate
352 pages
7h 30m
English
Content preview from Making Things Smart
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Chapter 6. Stroboscope Tachometer
In this chapter we’re going to explore what we can do with careful timing when we have some information about the rotation of an object.
To save us a bit of work, we’ll use a premade motor and sensor combination. Probably the cheapest and most readily available source of these is the computer industry. Since computer fans need to be highly reliable (running 24 hours a day, 7 days a week, for years on end), brushed motors couldn’t easily be used because the brushes would wear out. Instead, computer fans use brushless motors.
To help with efficiency and to lower noise, it’s often useful to run these fans slowly when the computer doesn’t need to dissipate as much heat. To do that reliably, the computer needs to ...
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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.