O'Reilly logo

Making Things Talk, 2nd Edition by Tom Igoe

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 10. Mobile Phone Networks and the Physical World

image with no caption

ohai lion, how r u??? txt me l8r!!!

This lion can send you an SMS. Groundlab, in conjunction with Living with Lions and Lion Guardians, developed this tracking collar that utilizes a GPS/GSM module to transmit lions’ locations via SMS to researchers and Maasai herders. This open source system aims to help conservationists protect the last 2,000 lions living in the wild in Southern Kenya, and safeguard the Maasai herders’ cattle, restoring Maasai land to a working ecosystem. Photo courtesy of Groundlabs.

Ethernet and WiFi are handy ways to talk to people and things on the Internet, but there’s a great big chunk missing: the mobile telephone network. Nowadays, telephony and the Internet are so intertwined that it doesn’t make sense to talk about them separately. It’s getting increasingly easy to connect physical devices other than mobile phones through mobile phone networks. In this chapter, you’ll learn how to connect these two networks, and when it’s useful to do so.

Supplies for Chapter 10

There’s not a lot that’s brand new in this chapter. Many of the basic hardware parts will seem familiar. You will get the chance to work with 120V or 220V AC, though, and to work with conductive fabrics and threads. You’ll also learn about reading and writing from an SD card.

DISTRIBUTOR KEY

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required