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We can help you better if you tell us why such as a USB Morse code transmitter which you can download the code off the net.
how can I download the code of the net ?
Try this website.
You need an interface to the USB port, I don't think you can bit-bang the port pins. Try and find the FTDI FT232R chip - bitbanging that is fairly simple. Your bigger problem is this is a hard real-time problem, and system latency might stop you doing it.
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Posted:Apr 1, 2014
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