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Joined 1 year ago
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Cake day: June 16th, 2023

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  • grasib@lemmy.worldtoMemes@lemmy.mlSimple trick
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    1 year ago

    Not by default. It remembers the MAC for each specific network. This is because sometimes you want to have specific device on the same IP all the time. The DHCP decides this via the MAC.

    If you want it truly randomised every time you need to turn on non persistent MAC randomisation in the developer option.







  • You lost your pad. This usually happens if you have old PCBs which were exposed to some air humidity over time. The pad heats up and the moisture evaporates between the layers, separating the pad and the PCB base material. More heat increases the likelihood of that happening.

    That part is unsolderable now. You need to connect at a different place and reconnect any interrupted traces or glue the pad back to the board, if you can.

    Game controllers in general are very hard to repair since they contain large copper layers to withstand forces from the controls. It’s very common to loose pads or lift THT holes.

    That said, most often nothing is ever beyond repair. It’s usually just a matter of skills and tools which are available.









  • You’re right of course. Two more questions if you don’t mind:

      1. what’s the 1k || 100k doing?
      1. if you don’t want more than 5V at the output of the OpAmp, wouldn’t it be easier to just supply the OpAmp with 5V instead of adding a shottky diode which has a forward voltage of around 0.6V? As I understand the screenshot the voltage is 5.4V at that exact point and it could theoretically raise to 5.6V.

    At the moment you’re also mixing up your + input. 10V AC + 5V DC result in 7.5V input in your sim.