I have an Arduino board connected to a Neopixel Ring. This Ring draws more than 0.5 Ampere, so it needs its own power supply (not drawing power via the Arduino board)
I found this schematic that connects a Neopixel and an Arduino to a single power adapter. To my surprise, the power adapter connects its power straight to the 5V pin of the Arduino board.
Arduino seems to advice against this, so my question is: is this the correct way to separately power a device AND an Arduino from one adapter?