Shields are boards that can be plugged on top of the Arduino PCB. Breakout boards. Many components may be hard to connect to. Like many SMD chips. By using a breakout board. You can distribute the connections so they may be more easy to connect without being an expert solder. As an example this one. The board contain a pre mounted PIC chip. And hobbyist friendly solder connectionsIn Arduino Speak what does Arduino Shield mean? And what does breakout board mean?
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