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Message started by Mr Basil on Jan 20th, 2012 at 12:51pm

Title: Triggering capture start by switch?
Post by Mr Basil on Jan 20th, 2012 at 12:51pm
Is it possible to drive a car, await a very intermittent issue, and start a preconfigured and connected Picoscope triggering by pressing a button or similar? I don't know if they have an external trigger input, or if there's a workaround. Thanks.

Title: Re: Triggering capture start by switch?
Post by PRESTONERR on Jan 20th, 2012 at 5:32pm
 Have you tried / heard of using the repeat trigger but setting it in a place that the signal of that channel will never touch it?  If you do this, the scope will just keep scrolling across.  You can put a ton of time on the screen and just pause the scope when the event happens, then you have all the info leading up to it too.

Title: Re: Triggering capture start by switch?
Post by daveyK on Jan 20th, 2012 at 8:37pm
Or if you are looking for a signal dropping out you can set trigger for voltage lower than what is spec / normal on the falling edge and the scope will only record when the signal drops out.

dave

Title: Re: Triggering capture start by switch?
Post by Dwayne j on Jan 21st, 2012 at 3:27pm
i thought of the same sort of thing / u could stop and start the scope .i thought to use an other chanel with a buton ( 1.5 volt battery and switch in a push bike hand grip or similiar /this will give u the time or glitch position , also thought u could use it as a trigger if u set your scope to do so.

Title: Re: Triggering capture start by switch?
Post by PicoFin on Feb 20th, 2012 at 12:05pm
Spacebar is start/stop. No good enough for button?

Title: Re: Triggering capture start by switch?
Post by PRESTON on Feb 20th, 2012 at 10:13pm
I think the problem with that Fin is that you will not have the data that lead up to the symptom being sensed.  Which can have a lot of info in it.

Title: Re: Triggering capture start by switch?
Post by autosparky on Feb 21st, 2012 at 10:53pm
does anyone use the "save to harddrive" function under the Tools-alarms?

Title: Re: Triggering capture start by switch?
Post by nobbyclrk on Mar 10th, 2012 at 12:24am
As mentioned, I would try and set up some sort of trigger.

But, a couple of years ago I was chasing a very intermitant fault and I did not know how to set up a trigger for it. So I used a wireless mouse and programmed one of the buttons to the space bar which worked well. I did mean to shrink it down but have never found the need of it since.

HTH
Andy

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