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Triggering capture start by switch? (Read 472 times)

Mr Basil Freshman Member Offline Posts: 9	Triggering capture start by switch? Jan 20^th, 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.
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PRESTON

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"Fix like a champion today"

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Re: Triggering capture start by switch?
Reply #1 - Jan 20^th, 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.

Rogue Nerd in South FL

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daveyK Super Nerd Picogroup Offline (Retired) - Elevation: 525 feet Posts: 2,357 Hellertown, PA, USA Pennsylvania USA Gender:	Re: Triggering capture start by switch? Reply #2 - Jan 20^th, 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
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Dwayne j Freshman Member Offline Posts: 3	Re: Triggering capture start by switch? Reply #3 - Jan 21^st, 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.
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PicoFin Guru Member Offline Posts: 276 Parainen Finland Gender:	Re: Triggering capture start by switch? Reply #4 - Feb 20^th, 2012 at 12:05pm Spacebar is start/stop. No good enough for button?
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PRESTON LSD Guide Picogroup Offline "Fix like a champion today" Posts: 4,961 Jensen Beach Florida USA Gender:	Re: Triggering capture start by switch? Reply #5 - Feb 20^th, 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.
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autosparky Super Nerd Picogroup Offline blind worker Posts: 2,537 Porirua New Zealand Gender:	Re: Triggering capture start by switch? Reply #6 - Feb 21^st, 2012 at 10:53pm does anyone use the "save to harddrive" function under the Tools-alarms?
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nobbyclrk

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Thursday Island
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Re: Triggering capture start by switch?
Reply #7 - Mar 10^th, 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

When eating an elephant, it's best done one byte at a time

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