a simple led sample code to control led strip based on EVB
[https://github.com/MaBaoGW/NRF52-WS2812B-LEDController-EVB]
Scan BLE EVB
Control Panel
Change Color
[https://github.com/1gravity/Android-ColorPicker]
[https://github.com/MaBaoGW/NRF52-WS2812B-LEDController-EVB]