Subject:
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Re: Battery Level Indicator
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 20 Jan 1999 14:07:35 GMT
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Original-From:
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Tom Brusehaver <tgb@cozy.&Spamless&wamnet.com>
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Reply-To:
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TGB@WAMNET.nomorespamCOM
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Viewed:
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803 times
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> 1. yes, you probably killed your analog 5. the analog inputs are
> very sensitive to over voltage. if your ran more than +5v directly
> into the input, you probably killed it.
When I first got my HC11EVB I ran 12V straight into the E port (one of
the pins), and was sure I ruined the chip. I called the tech support
person at motorola, and he said 12V on a A/D port should be no
problem. Sure enough it all still worked.
I think somewhere in the "pink book", it does state that 200% of
reference voltage is ok.
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Message has 1 Reply:
Message is in Reply To:
 | | Re: Battery Level Indicator
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| 1. yes, you probably killed your analog 5. the analog inputs are very sensitive to over voltage. if your ran more than +5v directly into the input, you probably killed it. next time you're playing with funky voltages, put a 5K resistor in series (...) (26 years ago, 20-Jan-99, to lugnet.robotics.handyboard)
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