banggood This is a Volt meter. It uses a 7 segment display. There are 2 flying leads. It uses a 2831, but it also has a PCB. A 2831 is *only* the display, no driver, No analog input, No voltage regulator.

banggood You can, but it does not decode CAN, nor IIC, nor UART etc. But you will see the signal. You should use a logic analyser for those.

banggood Someone has already asked this. It i re-badged and you want to search for "fnirsi-1013d user guide".

banggood I don't think you can. I have opened these in a hex editor and they look like a raw recording of sorts. Not compressed it seems.Too much work to try and map, but the - - stuff seems interesting.You can recall them and get a screenshot. I have tried opening with Pulseview and the format is not recognised. So it does not look like anything widely used.The files seem too small for the samples required.

banggood It should, but note there is a better one available for a little more. I can clearly see the dot imprints of the digits on a crystal oscillator package and this would be the same order of magnitude as the stylus. If you actually want to see wear (!). Maybe spend a little more.

banggood It may take a few days. It is possible that it has yet to be approved. I could not see my own review for a long time either. It is true these may have old firmware, and the solder may need work, and also that you need to buy 2 to fix the firmware and supply and solder on the slow pins yourself, and buy a 6 pin IDC adapter and supply an extra jumper. But the people buying these can do these things.

banggood No, but logic analyzers are better suited for this, having more inputs. Short UART by eye, maybe.