5
infrared message transmitters
Infrared light exists outside the range of human vision. It can be especially useful if you need to communicate stealthily or if you’re moving around at night and want to avoid detection. Or maybe you’re interested in countering the actions of other stealthy people. Either way, using it offers advantages. In this chapter, you’ll create two LEGO-based devices that work with infrared light: an infrared version of the automated Morse code transmitter you built in Chapter 4, to keep your messages secret, and an infrared receiver, which converts invisible infrared signals from the MINDSTORMS EV3 Infrared Beacon into visible ones.
working with infrared light
Infrared light is a range of colors that exist beyond the color ...
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