LEDs use to be just for looks. Now you can set them up to show warning for low battery, know if you're armed or not, which flight mode you're in, turn signals, and many more features. Here is how to wire them together and onto your flight controller, then set everything up in Betaflight or Cleanflight.
Here are a few different styles of LEDs
http://amzn.to/2hW0KnJ
http://amzn.to/2izTLl6
http://amzn.to/2iilSY9
Wiring addressable LEDs to Naze32 video here - https://www.youtube.com/watch?v=l5ZCNDOpbAU
Betaflight playlist - https://www.youtube.com/playlist?list=PLiYYhnH4BhI_ZtP7FIVS1aOVOWXPdkQRJ
All my playlists - https://www.youtube.com/channel/UCObMtTKitupRxbYHLlwHE3w/playlists
Video editor - http://amzn.to/2n7sUiF
My personal vlog channel - http://www.youtube.com/c/JcOfficial3