Exciting as it sounds, today we will enter the world of transmitting and receiving data over the air. As you read through, this chapter will unravel and demystify some embedded world techniques used for transmitting and receiving data from one device to another by using Infrared wireless signals. In the next chapter, we will learn to use radio frequency. Using this information, we will be able to move to the next level of Arduino prototyping by going wireless!

Things you will learn in this chapter:

• Understanding Infrared communications
• Hacking into an existing remote control
• Building an Infrared receiver device
• Using IR receiver TSOP1738/TSOP1838
• Using IR receiver SM0038
• Building an Infrared transmitter device
• Using IR transmitter LED
• Controlling Arduino projects