glibg10b

10x probe with 2v per division setting only showing 9.81V

The scope is clipping (limiting the voltage to protect the internal ADC). Notice CH1 in the bottom left is red. You can fix this by increasing the voltage scale

The OpenHantek6022 manual describes the limits of each voltage scale setting

Edit: I have exactly the same scope. If you need any help, you can reach out to me

He didn’t say use the smartwatch itself. He said look at the specs for what hardware you can use for your own smartwatch

• PLATFORM:
  • SoC: NORDIC Semiconductor nRF52832
  • CPU: 64MHz ARM Cortex-M4F

Yes, it has a similar feature called Optimised Charging that’s OnePlus-specific

Stock Android and Samsung OneUI don’t have the feature, and as far as I know, there are no other brands that have it either

It’s Pixel-specific. OP didn’t say which phone they have

It also has to be enabled first

Source?

soc = state of charge (battery percentage)

That doesn’t exclude hardware-based spyware

The second issue could be a software issue and the first could be a driver issue, so I’d start by reinstalling Windows and installing the latest driver for your specific GPU

Found that the resistance of this potentiometer doesn’t change when it’s moved

Are sure you’re measuring across the correct terminals? The resistance between the two terminals of the resistive portion is constant. I would expect the resistance of a failed pot to either be zero or infinite

I haven’t done a course in electromagnetism yet, but as far as I understand, the ferrite core is just a piece of metal with no magnetic field, so moving it doesn’t induce a voltage

I think it would, however, change the inductance, just like the iron core in a transformer does

I’d buy a cheap multimeter and test it for myself

I believe the voltage is still high

I believe there are devices that can measure such things

• Arduino
• The Art of Electronics (book)
• LTspice (simulation software)

AA batteries are typically non-rechargeable, so there’s not much of a need for putting them in parallel

I imagine the ADC has a high-pass filter. The low sample rate (usually 48kHz) could also be an issue

You can also use your phone as a 2-channel function generator using https://play.google.com/store/apps/details?id=com.keuwl.functiongenerator. Maybe you could use both at the same time to measure a circuit’s frequency response

deleted by creator

3

Of all posts, why is this one like-botted?

If your soldering iron is sparking, you have a big problem

Is breaking laws against the rules?