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Mastering Arduino by Jon Hoffman

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Challenge

In this chapter, we saw two types of remote control devices. The first was the IR control, which needs a line of sight to the project and can have a lot of different buttons. The radio frequency remote is good when the remote needs to work over greater distances from the device or even in a different room.

There are numerous other ways to create remote controls using wireless signals, such as Zigbee radios or even Wi-Fi; however, for this challenge, we want you to think outside the box and to begin to expand your own horizons. The challenge for this chapter is to think of ways to remotely control your device without using a wireless signal.

You may be shaking your head right now wondering what we mean by remotely controlling a project ...

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