This App Interfaces with the NRF52 Android Sketch to control the mask
https://github.com/Arudinne/RGB-Wrench-Mask/tree/master/NRF52832
This App Interfaces with the NRF52 Android Sketch to control the mask
https://github.com/Arudinne/RGB-Wrench-Mask/tree/master/NRF52832