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- Newsgroups: sci.electronics
- Path: sparky!uunet!mcsun!news.funet.fi!news.cc.tut.fi!eh75638
- From: eh75638@ampeeri.ee.tut.fi (Hautakorpi Esa Sakari)
- Subject: Re: Idea for LED sequencer
- Message-ID: <1992Nov11.121251.1936@cc.tut.fi>
- Originator: eh75638@ee.tut.fi
- Sender: news@cc.tut.fi (USENET News System)
- Organization: Tampere University of Technology, Finland
- References: <1992Nov5.120548.8534@ms.uky.edu>
- Date: Wed, 11 Nov 92 12:12:51 GMT
- Lines: 44
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- It is common to use oscillator, counter and a BCD-1/10-decoder.
-
- WHAT IF you use a MULTIPLEXER instead of BCD-1/10-decoder PLUS
- another oscillator which is connected to the input of multiplexer?
-
- It seems to me, that when you change frequencies and pulse widths of
- these two oscillators,
- plenty of different moving light patterns would be created.
-
- For example, f1=10kHZ and f2=9999Hz would result light moving
- to one direction, and if f2=10001 Hz, light would move to the
- opposite direction, right? Amount of illuminating LEDs
- depends about the relative pulse widths etc.
- I haven't built this myself, so if somebody does, it would
- be nice to hear, what happened...
-
-
- _______
- | |--LED1--
- | MUX |--LED2--
- F2------| | ..
- | |
- _______
- ||||
- _____________
- |BCD COUNTER|
- ____________|
- |
- F1
-
- ---------------------------------------
- -- E.Hautakorpi eh75638@ee.tut.fi--
- ---------------------------------------
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