Subject:
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RE: IR Demodulator Range Finder Hack
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 25 Nov 1997 16:00:17 GMT
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Original-From:
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John Hatton <(johnha@icsplc.)Spamcake(co.uk)>
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Viewed:
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1274 times
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Thanks to David Kott for the addresses, the pdf file is a slightly
updated version of the original so it will come in useful. He mentioned
that he was using a circuit to modulate the IR transmission from the
LEDs by using a NE555 to trigger a transistor. Could anybody possibly
mail me the circuit diagram,
I am still a bit rusty on my analogue circuit design.
The reason I am Posting this to the list rather than directly to him is
that the address appears to be un-recognisable to my mail server.
Thanks again.
John Hatton
johnha@icsplc.co.uk
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Message has 1 Reply:
 | | RE: IR Demodulator Range Finder Hack
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| (...) Sure thing. The basic wiring for a 555 in astable mode is pretty straightforward; +5 volts |-----+ +-|-----|-+ +-Res.1-------| 8 4 | | | | |---...---| 7 3 |------> to Base of BJ Transistor Res. 2 | | | +----| 6 "555" | | | | | +--------+----| (...) (28 years ago, 26-Nov-97, to lugnet.robotics.handyboard)
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