design 4 points timer
From: yar (st_yar_at_yahoo.com)
Date: 06/13/04
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Date: 13 Jun 2004 14:42:02 -0700
Hi'
I looking for design a timer control four points as following;
* point number one connect for an adjustable time (with a Variable
Resistance) and then point one disconnect and point two connect
** point number two connect for an adjustable time (with a Variable
Resistance) and then point two disconnect and point three connect
*** point number three connect for an adjustable time (with a Variable
Resistance) and then point three disconnect and point four connect
***** point number four connect for an adjustable time (with a
Variable Resistance) and then point four disconnect and point one
connect another time
and so on
I used NEC555 timer to do one timer cicuit but I am confused how I can
catch my goal simply
Note; this circuit will control four motors with 3watt power any one
of the motors can ignored for a time the ignored motor can be number
two or three
then the sequence may
be(1'2'3'4'1'....)or(1'2'4'1'.....)or(2'3'4'2'.....)or(1'2'3'1'.....)or(1'2'1'.....)or(1'3'1'.....)or(2'3'2'.....)or
any sequence
thank you for all messages any suggestion will be greatly appreciated
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