November 2019
Beginner
512 pages
11h 50m
English
Content preview from Exploring Arduino, 2nd Edition
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5Driving Stepper and Servo Motors
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
- Pushbuttons (×2)
- 1kΩ resistors (×4)
- 10kΩ trim potentiometer
- 5 mm Blue LEDs (×4)
- 9V battery
- 9V battery clip
- L7805CV 5V voltage regulator
- 10μF 50V electrolytic capacitors (×2)
- TI L293D dual H-bridge motor driver
- 12V (> 500 mA) DC wall adapter
- Sharp GP2Y0A21YK0F IR distance sensor with JST cable
- Standard 5V servo motor
- NEMA-17 bipolar stepper motor
- Hot glue or tape
- Circular “clock face” (This can be a blank CD, or just paper.)
- Binder clip
- Popsicle stick
- CODE AND DIGITAL CONTENT FOR THIS CHAPTER
- Code downloads, videos, and other digital content for this chapter can be found at:
exploringarduino.com/content2/ch5- Code for this chapter can also be obtained from the Downloads tab on this book's Wiley web page:
wiley.com/go/exploringarduino2e
In Chapter 4, “Using Transistors and Driving DC Motors,” you mastered the art of driving DC motors. DC motors serve as excellent drive motors, but they are not recommended for precision work because they have no built-in feedback mechanism and they are velocity-controlled rather than being position-controlled. Without using an external encoder or positioning system of some kind, you will never know the absolute position of a DC motor. In contrast, servo motors, or servos, are unique in that you command them to rotate to an angular ...
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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.