Hey guys,
Any ideas how this circuit or another 555 circuit could be modified
so it still times out if the switch is accidentally held open.
It will be used with a pair of photobeams that have normally closed contacts
acting as the trigger.
I was trying to avoid using a relay to make it normally open.
(Please speak in as simple a language as u can).
Thanks,
Haxxx
Any ideas how this circuit or another 555 circuit could be modified
so it still times out if the switch is accidentally held open.
It will be used with a pair of photobeams that have normally closed contacts
acting as the trigger.
I was trying to avoid using a relay to make it normally open.
(Please speak in as simple a language as u can).
Thanks,
Haxxx