November 2019
Beginner
512 pages
11h 50m
English
Content preview from Exploring Arduino, 2nd Edition
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15Wireless RF Communications
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
- 220Ω resistor
- Piezo buzzer
- 5V 1A USB port wall power supply
- 315 MHz momentary type RF receiver (or a similar receiver in a frequency appropriate to your country)
- Single-button 315 MHz RF remote control (or a remote in a frequency appropriate to your country)
- Controllable power relay module (IoT Power Relay from Digital Loggers, Inc.)
- AC lamp
- Pocket screwdriver
- CODE AND DIGITAL CONTENT FOR THIS CHAPTER
- Code downloads, videos, and other digital content for this chapter can be found at:
exploringarduino.com/content2/ch15- Code for this chapter can also be obtained from the Downloads tab on this book's Wiley web page:
wiley.com/go/exploringarduino2e
It's time to untether! A common requirement in many microcontroller projects is wireless connectivity. There are many ways to achieve wireless connectivity, but the most basic is simple RF (radio frequency) modules. These come in many shapes and sizes, but most have a similar mode of operation: when a single input changes on the transmitter, a matched output changes on the receiver module. Effectively, they operate just like a wire, with one bit of information going in and out at a time. This chapter introduces the concept of wireless communication in general, but specifically focuses on simple RF communications. The next ...
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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.