November 2019
Beginner
512 pages
11h 50m
English
Content preview from Exploring Arduino, 2nd Edition
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13Interrupts and Other Special Functions
Parts You'll Need for This Chapter
- Arduino Uno or Adafruit METRO 328
- USB cable (Type A to B for Uno, Type A to Micro-B for METRO)
- Half-size or full-size breadboard
- Assorted jumper wires
- Pushbutton
- 100Ω resistor
- 220Ω resistors (×3)
- 10kΩ resistor
- 5 mm Common-anode RGB LED
- 10μF 50V electrolytic capacitor
- Piezo buzzer
- 74AHCT14 hex inverting Schmitt trigger
- CODE AND DIGITAL CONTENT FOR THIS CHAPTER
- Code downloads, videos, and other digital content for this chapter can be found at:
exploringarduino.com/content2/ch13- Code for this chapter can also be obtained from the Downloads tab on this book's Wiley web page:
wiley.com/go/exploringarduino2e
Up to this point, every Arduino program you've written has been synchronous. This presents a few problems, one being that using delay() can preclude your Arduino from doing other things. There are a variety of ways to make your Arduino multitask so that you don't waste any valuable processor cycles doing nothing.
In this chapter, you will learn how to leverage both timer and hardware interrupts to make your Arduino sketches asynchronous. Interrupts make it possible to execute code asynchronously by triggering certain events (time elapsed, input state change, and so on). Interrupts, as their name implies, allow you to stop whatever your Arduino is currently doing, complete a different task, and then return to whatever command the Arduino was previously executing. You will also learn how to execute interrupts ...
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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.