I'm only a novice so laugh all you want, but can anyone tell me/show me how to set off an astable with a push-button. My astable is set up like below:
Any help is appreciated a lot. **broken link removed**
Can you just use a latching pushbutton? Or do you need a momentary - push ON - push OFF? Or do you just need a button to make it start and can use a different switch to reset it?
I guess what I am getting at is can you use a push button switch with an ON and OFF state built into it mechanically? If you can use a switch like this, all you need to do is either put it inline with pin 1 or 8 of the 555 IC. Pin 1 is ground and 8 is your positive supply voltage, breaking either will turn it off.
If you have a momentary pushbutton that you want to use to toggle it on and off, you will need a circuit. There is more then one way to do it, but a flip flop comes to mind.