In this directory there are two folders: real_coded_rotary_switch contains the firmware compatible with the version of Rockit featuring the real-coded rotary switch. complementary_coded_rotary_switch contains the firmware compatible with the version of Rockit feauring the complementary-coded rotary switch. To upload the firmware without any changes follow these steps: 1) Hold the pushbutton while connecting the flight computer to your PC with a microUSB cable 2) Drag and drop the .uf2 file to the directory that pops up when you connect Rockit to your PC. 3) Done