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I was monitoring a signal output from a button during debouncing on my oscilloscope and surprisingly as you can see in the image, the signal peaked at 5.92 volts and then went back to the VDD value which is around 5 volts.

Why and how did the signal exceed its VDD value at some point?

enter image description here

JYelton
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abdo Salm
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    Related: https://electronics.stackexchange.com/q/158004/2028 – JYelton Aug 18 '23 at 18:05
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    One must treat these fast wave shapes with some scepticism. Probes often add artifacts that may only exist while probing, because of added capacitance and inductance. Does your probe have a GND clip with a long wire? Try it with a very short wire, and see if the transient shape differs. – glen_geek Aug 18 '23 at 18:05
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    it could be a transmission-line effect, how is the circuit pysically constructed? – Jasen Слава Україні Aug 20 '23 at 01:33

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