Hi. I have a 555 timer that activates when object breaks a laser beam
It works okay so far. I break the beam and the LED on the output comes on. When I ground pin 2 briefly it goes out until I break the beam again
What I want now is for the output to stay on for three minutes and then reset.
So final operation is when the beam is broken a relay is energized for three minutes then releases.
Can someone tell me what else I need?
Thanks!!
It works okay so far. I break the beam and the LED on the output comes on. When I ground pin 2 briefly it goes out until I break the beam again
What I want now is for the output to stay on for three minutes and then reset.
So final operation is when the beam is broken a relay is energized for three minutes then releases.
Can someone tell me what else I need?
Thanks!!