Power Draw - ways to reduce?

[stryker295]

Hello, I'm trying to run a few NeoPixels from the power pins on an ESP32 board I picked up from Adafruit (the Feather Huzzah32), but I'm noticing the LEDs not behaving the same way they do on our Arduino Uno (flickering colors when they should be pure white).

For now we're assuming there's a power draw issue, but we're using a port of the FastLED library and we're not sure if that's it.

Has anyone noticed issues trying to drive NeoPixels?

[ESP_Sprite]

Well, I'd say it's pretty easy to find out if power is the case: how many LEDs are you trying to run from those pins, and what happens if you power them from a 2nd 5V power supply? (Make sure to connect the grounds of the two power sources.)

[WiFive]

https://github.com/MartyMacGyver/ESP32- ... ED-Drivers