Once tried to paint my front door and fucked it up so badly that a professional had to sand it down. Cost me more than a workman would have done in the first place.

  • Hamartiogonic@sopuli.xyzEnglish
    3·
    2 days ago

    Reminds me of that one time I fried some electronics and learned my lesson the hard way.

    So, there’s this fancy USB power meter that shows a bunch of data on everything that is going on while charging. Turns out, it doesn’t communicate USB-C PD stuff correctly and can zap some electronics as a result. Here’s how to fry stuff with the wrong voltage.

    1. Plug in a C-C cable between the charger and the power meter.
    2. Plug in another C-C cable between the output side and a phone that can tell the charger to ramp up the voltage. The phone negotiates a higher voltage according to the PD protocol.
    3. Unplugg the phone, but leave all the other cables as they are. Normally, the charger would drop back to 5 V, but now that the power meter is still there, the voltage will stay at 15 V, 20 V or whatever.
    4. Plug in sensitive electronics that can only handle 5 V and watch how the magic smoke escapes.
    5. ???
    6. profit