I bought a Keweisi USB tester to measure the current of my Pi + Arduino project.
When I measure a Pi Zero I get a reading of 20mA, which is way to low. I put my MultiMeter in between and measure 82mA average, which is about what it should be. Keweisi USB tester broken? Maybe, but when I measure the current of a charging phone or powerbank, I get about the same value on the Keweisi and my MultiMeter. Does this mean that the current that the Pi is drawing is not flat causing the Keweisi to miss-sample? Could I fix this by adding a Capacitor in parallel over the USB black and red wire to flatten out the current? If so, what would be appropriate value of the Capacitor?