Since clone D1 Minis sometimes have marginal regulators, I put the big cap (1000µF, 6.3V) on the 3.3V pin instead of the 5V pin.
Actually, that is a valid point here. I was suggesting the capacitor to even out the current demand of the LEDs, which are 5 V and may peak at 420 mA.A capacitor is perhaps desirable on the 3.3 V of the ESP however the regulator should always be able to provide the current burst to the ESP as it transmits. The regulator limitation is more that it may overheat since it lacks a proper heatsink in these designs and that the 3.3 V regulator function of a USB to serial chip is inadequate for the purpose.
does that mean it would be great to install a capacitor between gnd and 3.3 and also between gnd and 5volts?
Unfurtunately my multimeter is telling me "OL" if I want to meassure the mA on 5V... was a cheap one.
My multimeter is the same, cannot measure over 200mA using the "normal" probe socket. But there is a second socket for measuring up to 10A.
The black wire is hold on the GND and the red wire is hold on the 5V PIN on my LEDs, the multimeter is set to 10A and the socket with 10A is used as well.