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- Newsgroups: sci.electronics
- Path: sparky!uunet!mcsun!fuug!krk!nntp!teemu
- From: teemu@krkmoon.krk.fi (Teemu Hakala)
- Subject: Re: chaser lights
- In-Reply-To: Josef Moellers's message of 4 Nov 1992 12: 10:46 +0100
- Message-ID: <TEEMU.92Nov7180847@krkmoon.krk.fi>
- Sender: usenet@krk.fi
- Nntp-Posting-Host: krkmoon.krk.fi
- Organization: Radio Club of Kauniainen (OH2NRG)
- References: <1992Oct22.143703.6299@sactoh0.sac.ca.us>
- <1992Oct30.194327.841@phx.mcd.mot.com>
- <1d8b3mINNgqe@uranium.sto.pdb.sni.de>
- Date: Sat, 7 Nov 1992 16:08:47 GMT
- Lines: 39
-
- >In article <1992Oct22.143703.6299@sactoh0.sac.ca.us> jhp@sactoh0.sac.ca.us (Jim H. Puga) writes:
- >>I understand I missed an article about how to build chaser lights
- >>and was hoping that if someone still has that article if they could
- >>e-mail it to me?
- >>
- >>If anyone has any suggestions on how to do it, I will gladly
- >>accept those also.
- >>
-
- >Build an oscillator with an LM555, connect to output to a 7493
- >TTL binary counter, connect the BCD output to a 74154 TTL BCD to
- >1 of 16 decoder, connect the outputs of the 74154 to solid state
- >relays starting with output 1, connect the first unused output
- >from the 74154 to the reset input of the 7493.
-
- Jim was probably referring to these "KITT"-like lights that go back and
- forth.
- You'd have to use an up/down counter (don't have the number) and combine
- both the first and last output of the decoder to generate a trigger
- input to a flip-flop supplying the input for the up/down signal.
-
- --
- | Josef Moellers | c/o Siemens Nixdorf Informationssysteme AG |
- | USA: mollers.pad@sni-usa.com | Abt. STO-XS 113 | Riemekestrasse |
- | !USA: mollers.pad@sni.de | Phone: (+49) 5251 835124 | D-4790 Paderborn |
-
- You guessed it, I'm lazy, and I use GNUS.
- I'd like to bring my fruit to this conversation about the most useful electornics
- application -- the running light. You could use some circuit designed to read analog
- signal (voltage) and drive some leds (in row or matrix). The input of the IC is very
- easy to use, just drive voltage into it, and the led for that voltage shines. Circuit
- UAA170 is one of those, it's designed to drive a 4 by 4 matrix of leds, operariong
- voltage 12 volts. It's real easy to get different effects out of it, just try different
- oscillators (sine wave being great for KITT-light) in the input head.
-
- --
- Teemu Hakala | E-Mail to : | These opinions are mine, and so are
- Kasavuorentie 9B | teemu@krksun.krk.fi | all those *ing mistakes. Do NOT think
- 02700 Kauniainen | Teemu.Hakala@krk.fi | abt. Radio Club when I make a mistake
-