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.
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.
A Arduino Store (http://store.arduino.cc/ww/)
AF Adafruit ...