One is called the host (or server) and the other one is called peripheral (client). So, what is USB Host support? The USB protocol defines two types of devices. It is a shield which provides USB Host support for Arduino.
What is an USB Host Shield?īefore we start, let’s first understand what is an USB Host Shield. One such shield which has many incompatible versions is USB Host Shield and in this post I am going to tell you how you can select the proper shield and also the changes that you have to do to make even the incompatible shields work with the library. But it becomes a problem when the shield is pretty complex (like the USB Host Shield) and you have to use a library and the shields are not compatible with each other. In a way this is good, because as a user you are going to have multiple options.
Often there are more than one manufacturer for a single type of shield itself. There is a huge variety of shields that are available which can be stacked on top of an Arduino.
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