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Triggering scope with foot pedal switch

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slugrustle:
I just jury rigged a foot pedal switch to the external trigger input on my scope with a 1k resistor and 5V supply from scope USB.  It's super handy.  I wanted to hold two nice high speed probes in particular locations with ground springs and needed both hands for that, but I also wanted to trigger the scope.  Enter the foot pedal switch.

Surely other people have done this before.  I'm looking to make a better / more permanent setup.  Do other people have advice on nice ways to do that?  I was thinking maybe a little box with debounce, selectable 3.3V / 5V out, selectable idle high / idle low, a BNC jack for output, that kind of thing.

dobsonr741:
Food for thought: voice assistant triggering single shot trigger over SCPI.

schmitt trigger:
Excellent idea, I may build one myself.
The most important feature IMHO, would be a debounce circuit. 

ejeffrey:
A smart pedal would be super cool.  Something like this might be more complex than necessary but sounds handy:

Hold down the pedal to put the scope in auto or normal mode.  Release to stop/hold.  Tap once to arm single shot mode.  If the scope triggers from the signal, another tap re-arms single shot mode.  If not, subsequent taps act like force trigger button.

TERRA Operative:

--- Quote from: dobsonr741 on July 11, 2023, 02:10:14 am ---Food for thought: voice assistant triggering single shot trigger over SCPI.

--- End quote ---

Like this one? :)

https://www.ebay.com/itm/185712951081

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