I have a power strip. on this power strip is connected the monitor, the PC and the 5V power supply I use to power my leds.
now I have the PC, the monitor, the 5V power supply connected to the power strip.
5v power supply is disconnected from the arduino project I posted in the picture in the previous post.
ESP is not connected to the PC usb.
now if I connect the 5V power supply to the 2 pin connector of my arduino project,
MONITORS BLINK :O :O :O :O
how can it be possible? it blink even if the usb is disconnected as soon as I connect the 5v power supply to the 2 pin connector :O
than if I connect the PC USB to the esp the PC monitor blinks again.
than the strip works correctly.
what can it be?