Hi everyone, I am trying to use the 555 timer to create a circuit that has a push button , that when pressed it sends a low output for 5 seconds then goes back to h igh. Also, if it is possible I would like the button to be a timer reset a s well so that if pressed again during the 5 seconds it adds more time othe rwise it can be pressed after time has ended for another 5 seconds. I need to keep the circuit as small as possible that way I can fit it into the ho using for it's application. I am going to use this to change the way a button on a existing circuit boa rd works. The existing button currently works by having current to it all the time then when it detects grounding(low) by button press, that circuit is complete and sends button pressed signal. I want to use the 555 timer circuit to make it so that when the button is p ressed it acts like it is being held down for 5 seconds every time without actually holding down the button like I have to currently.
5 years ago