WS2812B (NeoPixel) Integration

ArduCopter Copter 4.0
53

This is not correct. Someone can use high voltage servos, so if J901-VCC is greater than 6.5V (VCCB maximum rating) U901 and U902 will be blown.

So other 5V internal supply is more appropiate, such as IO-VDD_5V5, VDD_5V_HIPOWER or VDD_5V_PERIPH.