I just built an astable oscillator which runs at roughly 1Hz, i want it to run with a 50% duty cycle but i don't know how to measure it, is there a way to measure both frequency and duty cycle at this low frequency?, my multimeters are not responding although they have a frequency measuring setting.

 

Don't you have an oscilloscope? I thought you've posted some waveform captures from it in other threads.

 

Don't you have an oscilloscope? I thought you've posted some waveform captures from it in other threads.

Yes but the line just goes up and down about once a second, the frequency readout doesn't respond, it just says below 10 Hz

 

Yes but the line just goes up and down about once a second, the frequency readout doesn't respond, it just says below 10 Hz

What is your time base set to?

 

What is your time base set to?

2 micro seconds

 

i slowed the timebase down to 200 milliseconds....much better

now i can see the waveform.....

all good.

 

2 micro seconds

Again; Even if you become upset at me for repeatedly saying that.

You really need to understand how to operate a scope.

 

Again; Even if you become upset at me for repeatedly saying that.

You really need to understand how to operate a scope.

What did i do wrong?

 

What did i do wrong?

Setting a 2 microsecond time base on a 1 Hz waveform?

 

Setting a 2 microsecond time base on a 1 Hz waveform?

Well now I know better

 

Nothing wrong with not knowing ... that's the main reason most of us are here in the first place! ...

 

Again, I am not criticizing him for not knowing. I am suggesting for him to become very familiarized with the controls of an oscilloscope.

 

Maybe this'll help:

 

Maybe this'll help:

What will help me more is if i put you on ignore!

 

I promise ... I meant no offense! ... I'm actually watching that video myself, see if there's something I've missed or something new in the field in my +40 years of experience!

 

What will help me more is if i put you on ignore!

Yep. Always a good idea to ignore the people that are trying to help you learn.

 

Oh boy....here we go..........

ok ok i apologize to anyone whom i might of offended and i'll go watch that video.

 

I'll be posting a quiz later on ... see if you really watched it ... ... just kidding, dude. Lighten up

 

I'll be posting a quiz later on ... see if you really watched it ... ... just kidding, dude. Lighten up

Well some of that video i already knew but there was a lot there that i didn't know, i'm going to watch it again and actually follow it with my own scope.

thanks for the link Cmartinez

 

well I'll be ... I actually did something right today! ...