Setting up LED strips in Betaflight gives you instant visual feedback about your drone's status without checking your OSD. I'll walk you through the complete process since I've done this on dozens of builds.
First, you need a compatible LED strip. WS2812B addressable LEDs are the standard choice because each LED can be individually controlled. Most flight controllers have a dedicated LED pad, though some require you to reassign a resource. Check your board's documentation or look for markings like LED or WS2812. Solder the data wire to this pad, with power going to a 5V source and ground to GND. Many pilots power strips directly from the flight controller's 5V pad, but if you're running more than 10-12 LEDs, consider using a separate BEC to avoid overloading the FC's regulator.
Once wired, open Betaflight Configurator and head to the LED Strip tab. You'll see a grid representing LED positions. Click the cells to define where each LED sits on your frame. I typically place four on each arm for a total of sixteen on a five-inch quad. After mapping positions, assign colors and functions to each LED. The function dropdown includes options like Color, Mode and Orientation, Flight Mode, Armed State, Battery, RSSI, and GPS.
Here's how I configure mine for maximum usefulness. I set the rear LEDs to show armed state, turning red when armed and green when disarmed. The side LEDs display battery voltage, starting green above 3.7V per cell, shifting to orange around 3.5V, and flashing red below 3.4V. Front LEDs show flight mode, with different colors for angle, horizon, and acro modes. If you use GPS, you can dedicate LEDs to satellite lock status.
The color selection works through HSV values. Hue determines the actual color, while brightness can be adjusted from 0 to 255. I usually keep brightness around 200 during daytime flying and drop it to 100 for indoor sessions to avoid distraction.
After configuring everything, save your settings and test on the bench. Plug in a battery and verify the colors change correctly when you arm, switch modes, or let the battery voltage drop. The real benefit shows up during flight when you can instantly spot your orientation during a crash or see battery warnings without checking telemetry.