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Arduino Development Cookbook

You're reading from   Arduino Development Cookbook Over 50 hands-on recipes to quickly build and understand Arduino projects, from the simplest to the most extraordinary

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781783982943
Length 246 pages
Edition 1st Edition
Tools
Concepts
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Author (1):
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Cornel M Amariei Cornel M Amariei
Author Profile Icon Cornel M Amariei
Cornel M Amariei
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Toc

Table of Contents (11) Chapters Close

Preface 1. Power on – Arduino Basics FREE CHAPTER 2. Blinking LEDs 3. Working with Buttons 4. Sensors 5. Motor Control 6. More Output Devices 7. Digital Communication with Arduino 8. Hacking A. Electronics – the Basics Index

Wireless serial


Sometimes we just want to cut the wires and send data over air. Believe it or not, it's not that difficult. We can quickly transform a serial or software serial port into a wireless one if we have a wireless transmitter and receiver pair. These wireless components are quite cheap and easy to find. They are available in a few different frequencies, and they are very easy to set up.

We will use the code from the previous recipe, Software serial and UART between Arduinos; except that we will implement the serial over air. There is a catch; we can only send data in one direction.

Getting ready

To execute this recipe, we need the following ingredients:

  • 2 Arduinos

  • Jumper cables

  • One RF link transmitter and RF link receiver pair

How to do it…

The following are the steps to connect two Arduino UNOs using Software Serial over wireless:

  1. Assuming we use pins 8 and 9 for RX and TX on both Arduinos, connect pin 9 on the master Arduino to the DATA pin on the transmitter.

  2. Connect pin 8 on the slave...

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