Subject:
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FW: 6 servos
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 22 May 1996 15:44:48 GMT
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Original-From:
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MSI: Sean Cunningham <sean@msiconsulting(Spamcake).com>
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Viewed:
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1027 times
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RS232 is +12 and -12, but most serial ports can work correctly even if
the signal is 3 to 5v. I regularly use 3 to 5v level serial signals.
If you need to convert low voltage serial to RS232 specs, you can use a
chip like Maxim's 232 - see www.maxim-ic.com for more info & data
sheets. This is the same principle and chip used in the handyboard's
interface board.
> > The boards take serial input (2400 or 9600 baud). It is
> > straightforward to write a 6811 assembly routine to output such serial
> > signals on an arbitrary digital output.
>
> Are the digital outputs at 5v high? I think you mentioned on the HB
> homepage about the serial interface converting RS232 levels at +12 and
> -12v to TTL levels (5v). I'm not that familiar with the nitty gritty of
> RS232 so this kinda puzzles me.
>
>
>
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