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492 B
492 B
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At SparkFun, we do a lot of stuff over serial.
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Once upon a time, most of the interfaces to Really Serious Computers -- the ones at universities and in government -- worked like debugging Arduino code over a serial port.
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The computer prints stuff, you type stuff to the computer, the computer prints stuff. It's just text in a box.
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Even once we got PCs in our houses, a lot of the interfaces shared this heritage. Remember DOS? Ever have to fire up cmd.exe on Windows?