Modifications

{{ambox-stop|text= We also recommend adding a large capacitor (1000 µF, 6.3V or higher) across the + and – terminals. This prevents the initial onrush of current from damaging the pixels. See the photo on the next page for an example.}}

{{ambox-stop|text= We also recommend adding a large capacitor (1000 µF, 6.3V or higher) across the + and – terminals. This prevents the initial onrush of current from damaging the pixels. See the photo on the next page for an example.}}

=== Can NeoPixels be powered directly from the Arduino’s 5V pin? ==

=== Can NeoPixels be powered directly from the Arduino’s 5V pin? ===

Sometimes. The Arduino can continuously supply only about 500 milliamps to the 5V pin. Each NeoPixel can draw up to 60 milliamps at full brightness. So yes, you can skip the separate DC supply and power directly off the Arduino as long as just a few pixels are used, or more if the colors and overall brightness are low. When in doubt, give the pixels a separate power supply.

Sometimes. The Arduino can continuously supply only about 500 milliamps to the 5V pin. Each NeoPixel can draw up to 60 milliamps at full brightness. So yes, you can skip the separate DC supply and power directly off the Arduino as long as just a few pixels are used, or more if the colors and overall brightness are low. When in doubt, give the pixels a separate power supply.