I want to use Arduino to read a car secondary ignition voltage.
Last week I search everywhere and I have not any clear answer to how to read secondary ignition voltage from ignition plug cables.
I had a handheld device which can do this and I need this data in my computer.
My handheld device manual says, it has capacitive sensor to read secondary ignition from ignition plug cables.
Anyway, secondary ignition voltage can up to 50kv dc.
Is there any way to read this data using with Arduiono.