Electronics > Beginners

Why can't I see bouncing of switch on oscilloscope screen?

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StillTrying:

--- Quote from: vk6zgo on April 06, 2019, 01:00:12 pm ---Surely there must be a way to do this with a modern DSO.
--- End quote ---

Yes it's dead easy.
Resistor about 1K to 10K.
X speed about 5ms/div.
With the trigger on AUTO set the trigger LEVEL mid-way between the high and low trace levels of the signal, then switch the trigger to NORMAL. Every switch change will show a capture, if it's bouncing.



--- Quote from: vk6zgo on April 06, 2019, 01:00:12 pm ---Wouldn't "roll" do this on a DSO----it seems to have no other use!

--- End quote ---

I think it's very useful for slow changing signals, you get to choose when to press STOP by eye.

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