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  • lhharris commented on brian_HobbyCNC's instructable DIY CNC Router2 years ago
    DIY CNC Router

    You can get a DB9 or DB25 to USB converter cable that will solve your problem of no direct serial port on modern PC's. You may also be able to source a different driver board that has the USB serial converter built in. The reality is the serial port is still very much alive, it's just hidden behind a USB to serial converter.

    Like this one from Amazon.

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