Timer Circuit needed

[barkster101]

Newbie Here I need to make a 2 second timer circuit for the flash from a disposable camera. now in general here is the board for the flash.

there are 2 leads for the power one AA battery
2 leads connected to an led that lites when charged about two seconds
and 2 leads that when connected trigger the flash.

I need a timer circuit that will cause the flash board to trigger after
about 2 or three seconds.

 

[bananasiong]

555 timer?

 

[Hero999]

Which would be fine other than the fact that a 555 timer needs a minimum of 4.5V.

There is a 555 that will work from 1.5V but I can't remember the part number, perhaps someone else will.

 

[eblc1388]

"CMOS 555" in google will give many results and among them the LMC555, GLC555 and 7555.

 

[reyarba]

Try Google or you can try the books in this site:

www.intellin.org/electronic_circuits_all.php