Searchlight Books Cutting Edge STEM Cutting Edge Computing with Raspberry Pi nn Krystyna Poray Goddu Lerner Publications Minneapolis
Chapter 1 WHAT IS RASPBERRY PI In September 2017 a man in Denmark found a small foam box on the beach The box was filled with wires an antenna a tiny computer and a camera It was part of a weather balloon launched two months earlier by students in England A homemade weather balloon can take pictures and measure temperatures 20 miles 32 km above Earth
The green rectangle in this image is a Raspberry Pi It is connected to a circuit and LED lights The weather balloon's tiny computer was a Raspberry Pi This computer is only the size of a credit card but it can do just about everything a desktop or laptop computer can do The other difference between Raspberry Pi and a personal computer is that Raspberry Pi costs only about thirty dollars and you build it yourself Since Raspberry Pi first came out in 2012 people around the world have used them to make everything from video games to robots to weather stations
