I want to run a bunch of arduinos off a single computer, but I want all the arduinos to be in the same COM port. I don't mean having all of them plugged into a USB hub, I mean each different arduino reads and writes into the COM port, for example, four arduinos sending info to COM3 .
1 Answer
Impossible. Serial is single device per port, and is one of the oldest computer protocols still in place today.
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