Revolution, Sparky2 and RevoNano boards supports external leds, up to 10 of the WS2811, WS2812 and WS2812B multi-color LEDs can be used. To use more than 10 leds you need to put the strips in parallel instead of series.

The WS281x leds do not work on CC3D/Atom boards.

External Led provides visual information about flight modes or warnings during flight/pre-flight checks.

Using Revolution board, the data output can be set to:

• FlexiIO_pin4,
• FlexiIO_pin3
• servo outputs.

NOTE: If FlexiIO_pin3 or FlexiIO_pin4 do not work for you, try using a spare servo output.

Led is powered using Gnd and +5V from board.

Go into UAVOBrowser, HWSettings > WS2811LED_Out and select the output.  Click on the red arrow pointing up on a hard drive near the top of the screen  to save the change to the board.  Reset or power cycle the board and the LEDs will begin working.