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Joined 3 years ago
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Cake day: November 16th, 2023

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  • When measuring voltage it is important what reference level you have, conventionally electrons flow from positive to negative, so if you switch the probes it’ll be negative, in a larger circuit you choose a way to navigate and you take the sign and calculate, if it’s positive or negative. PCB are not a good way to see it as they usually are constrained by size and they can have multiple layers and hidden paths also alternate is much more complex to work with.

    Also be careful around power supplies PCB, they can have large capacitors that can deliver dangerous voltage.

    If you want to get into electronics I suggest starting with DC current, much simpler and you can make some nice projects with arduino or other SBC