[555 push pbutton]

Harry, I don't understand what is : "From voltage, to voltage," if you can do the example with the example that you gave me:

On 4/28/2020 at 11:46 AM, HarryA said:

Do you need help with the calculations? As a quick test make the new resistor 50k and the capacitor perhaps 0.1ufd - I am just guessing. You want the capacitor to discharge before the output ends.

How the capacitor and resistor is chosen?

Thanks

P.S. My electronic classes are far, 40 years.

[555 push pbutton]

Harry, I thought you talked of the capacitor and resistor to put on the button like you told, instead to make a guess with a 50k and a 0.1ufd.

For the time I was OK to calculate it. But I would like to test it, but I don't know how !!!!!

[555 push pbutton]

Hi Harry,

 I put a 56k resistor (that's what I have) and the capacitor 0.1ufd; and it's work great. I'm very happy.

Please give me how to calculate resistor and capacitor. 

I appreciate help like yours it is something to make my life happier.

 

 

[555 push pbutton]

Hi everyone,

I look for a schematic for a button that I use with a 555. This button must doesn't stay turn on if I hold it, for my 555 turn off the led or relay or anything, by itself. I use a monostable circuit and now when I hold the push button the led stay on even time is pass.
Thanks,