![]() This makes for a more straightforward, often faster serial transfer, but it also requires at least one extra wire between communicating devices. Other very common serial interfaces include SPI, I 2 C, and the serial standard were here to talk about today.Įach of these serial interfaces can be sorted into one of two groups: synchronous or asynchronous. So, we often opt for serial communication, sacrificing potential speed for pin real estate. If youve ever had to move a project from a basic Arduino Uno to a Mega, you know that the IO lines on a microprocessor can be precious and few. ![]() Over a set amount of time, the mega-highway potentially gets more people to their destinations, but that rural two-laner serves its purpose and costs a fraction of the funds to build. These interfaces can operate on as little as one wire, usually never more than four. They usually require buses of data - transmitting across eight, sixteen, or more wires.
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