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Re: Parallel to serial converter
Personally, I would just get another display. I think the easiest way to make a converter though would be to use a PIC. It should a simple enough program. And would only take the one chip. Actually, if the serial data is coming from a computer, you'd also need another chip to take care of the voltages. But I think that you could use the shift register if you really wanted to. You could disable the outputs while it's updating if you use some kind of buffer. I wouldn't be surprised if there is some shift register that already does this.
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