September 2014
Intermediate to advanced
320 pages
5h 39m
English
Content preview from 30 BeagleBone Black Projects for the Evil GeniusBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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CHAPTER 3
Sensor Projects
THIS CHAPTER IS ALL ABOUT sensing inputs from the real world around us. We can use this information to control outputs such as motors and lights, or we simply display the information. This chapter includes a variety of different sensor projects that could be used to create robotics, weather stations, flood warning systems, day/night switches, and location-based projects.
Project 8Scanning Sonar
Scanning sonar using ultrasonic sensors is the most convenient way of sensing the distance of objects around us. An ultrasonic sensor generates high-frequency sound waves and receives back an echo of those sound waves. The sensor then calculates the time interval between sending the high-frequency sound wave and receiving the ...
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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.
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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.