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556 Timer

D

DaveK

Jan 1, 1970
0
I'm very new to this elecrronic stuff, but I was able to do what I
needed with the 555 timer, but I am lost with trying to get the 556 to
do what I need.

I'm using a 556 timer and below is what I would like to happen. If
anyone can make up a schematic or something to get me going in the
right direction I would surely appreciate it. Please contact me if
more information is needed.

With Mercury switch closed (1st timer)
Turns on Buzzer for 2 seconds (which I want) unless switch stays
closed
Gives power to second timer (momentary switch) even if the 2 seconds
on the 1st timer has elapsed.
With Momentary switch closed (2cd timer)
Sends power to a LED
Continues to stay closed till 1st timer switch is activated again

Thank You for Your Time,

Dave
 
P

Puckdropper

Jan 1, 1970
0
I'm very new to this elecrronic stuff, but I was able to do what I
needed with the 555 timer, but I am lost with trying to get the 556 to
do what I need.

*snip*


Dave

Your 556 is two 555s. Look at pin layout diagram, and simply map the
signals to the other pins. If I remember right, one 555 is on one side
and the other is on the other. You can't put a 556 in the same socket as
a 555 and have it work.

Puckdropper
 
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