555 monostable

[mgeno216]

I have a question regarding 555 in a monostable set up. I m using this schematic and calculator:
Monostable 555 Timeout Calculator

Is the "trigger" just to point where when current is applied, the timer starts?

Mike

 

[ericgibbs]

I have a question regarding 555 in a monostable set up. I m using this schematic and calculator:
Monostable 555 Timeout Calculator

Is the "trigger" just to point where when current is applied, the timer starts?

Mike

hi Mike,
Usually the trigger pin is connected via a capacitor and pull up resistor.

EDIT:
Look here.
https://www.electro-tech-online.com/blogs/ericgibbs/125-simple-7555-cmos-timer-calculator-v1-2.html

Like this example.

 

[MikeMl]

Look at this posting.

 

[mgeno216]

Thanks to both of you. I had a feeling you could wire it like ericgibbs posted, but i needed some ressurance.

Thanks,
Mike